Jean-Pierre Dugre, 1982, Colorado State University
Michael McCloud, 2000, University of Colorado Tor Oigard, University of Tromso, 2003 Peter J. Schreier, 2004, University of Colorado
Ali Pezeshki, 2005, Colorado State University
Yuejie Chi, 2009, Princeton University
Entao Liu, 2011, University of South Carolina
Aaron Pries, 2013, University of Paderborn
Pooria Pakrooh, 2015-2016, Colorado State University
Mark Blumstein, 2018-2020, Colorado State University
PhD Students
David C. Farden (1974), “Stochastic Approximation with Correlated Data,” Ph.D. Dissertation, Colorado State University, Fort Collins; University of Rochester, North Dakota State University
Joe Perl (1976), “Covariance-Invariant Discrete-Time Systems,” Ph.D. Dissertation, Colorado State University, Fort Collins; University of Nebraska, DSP Technologies, Mobilygen, Marvel
A. A. (Louis) Beex (1980), “Covariance Sequence Approximation with Applications to Spectrum Analysis and Digital Filter Design,” Ph.D. Dissertation, Colorado State University, Fort Collins; Virginia Polytechnic Institute
Jean-Pierre Dugre (1982), “Parametric Spectrum Analysis of Stationary Random Sequences,” Ph.D. Dissertation, Colorado State University, Fort Collins; IBM France
Christophe P. Rialan (1987), “Cellular and Vector Architectures for Implementing Projection Operators,” Ph.D. Dissertation, University of Colorado, Boulder; CIT-Alcatel, France
Cedric J. J. Demeure (1988), “Fast Algorithms for QR Factors of Near-to-Toeplitz Matrices,” Ph.D. Dissertation, University of Colorado, Boulder; ; CIT-Alcatel, France
Wayne P. Burleson (1989), “Efficient Computation in VLSI with Distributed Arithmetic,” Ph.D. Dissertation, University of Colorado, Boulder; University of Massachusetts
Richard T. Behrens (1990), “Subspace Signal Processing in Structured Noise,” Ph.D. Dissertation, University of Colorado, Boulder; Cirrus Logic
Michael P. Clark (1992), “Estimation Problems in Array Processing,” Ph.D. Dissertation, University of Colorado, Boulder; Air Force Institute of Technology
L. Todd McWhorter (1994), “Representations for Covariance Bounds and Time Series Estimators,” Ph.D. Dissertation, University of Colorado, Boulder; ORINCON, Altius
Mark Spurbeck (1994), “Analysis and Design Techniques for Filterbanks,” Ph.D. Dissertation, University of Colorado, Boulder, Cirrus Logic
John Thomas (1996), “Matched Subspace Signal Processing,” Ph.D. Dissertation, University of Colorado, Boulder; Tensorcomm, Rambus Technologies
Nelson Ueng-Teng (1996), “Isotropic Frames,” Ph.D. dissertation, University of Colorado, Boulder; Microsoft
Shawn Kraut (1999), “Adaptive Subspace Detectors,” Ph.D., University of Colorado, Boulder, Queens University (Kingston, Ontario), Lincoln Laboratories
Michael McCloud (2000), “Detection, Equalization, and Signal Design for Nonorthogonal
Multipulse Modulation on Noncoherent Communication Channels,” Ph.D. Dissertation, (jointly advised with Mahesh Varanasi), University of Colorado, Boulder (2001); University of Pittsburgh, Qualcomm
Gabriel Rodriguez-Yam (2003), Gibbs Samplers for Hyperspectral Imaging and Multiuser Commmunication,” Ph.D. Dissertation, Colorado State University, Ft. Collins (jointly advised with R. Davis)
Peter Schreier (2003), Detection and Estimation in Nonproper Gaussian Models for Communication,” Ph.D. Dissertation, University of Colorado (jointly advised with C.T. Mullis); University of Newcastle (Australia), University of Paderborn (Germany)
Ali Pezeshki, ”Two Channel Signal Processing in Canonical Coordinates,” (2004) Ph.D. Dissertation, Colorado State University, Ft. Collins (co-adviser with M. Azimi); Colorado State University
Zhifei Fan, “Diversity and Multiplexing Gain in Block Fading Channels, (2006), Ph.D. Dissertation, Colorado State University, Ft. Collins; Qualcomm Research
Yuan Wang, “Linear System Design for Compression and Fusion,” 2013, Ph.D. Dissertation, Colorado State University (co-advisor with Haonan Wang); Washington State University.
Nick Klausner, “Detection of Multiple Correlated Time Series and its Application in Synthetic Aperture Sonar Imagery,” Ph.D. Dissetation, Colorado State University, May, 2014 (co-advisor with Mahmood Azimi); ISTI, Inc.
Vidarshana Bandara, , “Matrix decompositions for Detection of Network Anomalies,” 2014 (co-advisor with Anura Jayasumana)
Pooria Pakrooh, (co-advisor with Ali Pezeshki) “Parameter Estimation with Compressed and Sparse Measurements,” June 2015, Post-doc, CSU
MS Students
Raymond C. Juras (1974), “Distribution Studies for Invariant Detectors,” M.S. Thesis,Colorado State University, Fort Collins
Richard J. Kubischta (1974), “Performance Measures for Optimum Arrays,” M.S. Thesis, Colorado State University, Fort Collins
James C. Luby (1978), “ARMA Digital Filter Design Using First and Second Order Information,” M.S. Thesis, Colorado State University, Fort Collins
Helen M. Anderson (1980), “Frequency Estimation in Signal Plus Noise and Autoregressive Models,” M.S. Thesis, Colorado State University, Fort Collins
Marwan Orfale (1981), “Dynamic Programming Algorithms for Frequency Tracking,” M.S. Thesis, Colorado State University, Fort Collins
Timothy J. von Reyn (1982), “A Survey of Spectrum Estimation Techniques,” M.S. Thesis, Colorado State University, Fort Collins
Sigurdur Sigurdsson (1982), “Fast Kalman Filtering for ARMA Processes: Fixed Point Implementation,” M.S. Thesis, Colorado State University, Fort Collins
Gregory Fetzer (1982),“Dynamic Programming for Time Delay Estimation,” M.S. Thesis, Colorado State University, Fort Collins
Cedric J. J. Demeure (1984), “Lattice Filters for Analysis and Synthesis of Stationary Time Series and Implementation of Fast Algorithms,” M.S. Thesis, University of Rhode Island, Kingston
Michael J. Albaneze (1985), “Linear Prediction in the Frequency Domain and Homomorphic Signal Processing for Channel Identification,” M.S. Thesis, University of Colorado, Boulder
Christophe P. Rialan (1985), “Modular Architectures for Implementing Projection Operators,” M.S. Thesis, University of Colorado, Boulder
James A. Girard (1986), “A Modular Architecture for Dynamic Programming on Markov Chains,” M.S. Thesis, University of Colorado, Boulder
Philippe Tourtier (1986), “Maximum Likelihood Identification of Structured Correlation Matrices for Spectrum Analysis,” M.S. Thesis, University of Colorado, Boulder
Suzanne E. Ronca (1987), “Statistical and Classical Methods of 2-D FIR Digital Filter Design,” M.S. Thesis, University of Colorado, Boulder
Michael Dunn (1989), ”Four UMP-Invariant Detectors,” MS Thesis, University of Colorado, Boulder
Stephen D. Voran (1989), “Magnitude and Phase Quantizers that Minimize Mean-Squared Error,” M.S. Thesis, University of Colorado, Boulder
Anthony Thorpe (1989), “Reduced Rank Methods for Solving Least Squares Problems,” M.S. Thesis, University of Colorado, Boulder
Todd McWhorter (1991), “Cramer Bounds for Modal Analysis,” M.S. Thesis, University of Colorado, Boulder
Michael Buehner (2004), ” Communication Experiments on a TMS 320,” Colorado State University, Ft. Collins
Recent Research Contracts
Contracts & Grants: “Adaptive Array Studies,” Naval Undersea Research and Development Center, San Diego, CA, March 1972–February 1974, $40,000, Principal Investigator
“Communication Receiver Studies,” Naval Undersea Research and Development Center, San Diego, CA, October 1973–December 1975, $41,000, Co-Principal Investigator
“Stochastic Approximation in Adaptive Signal Processing,” Office of Naval Research, June 1973–December 1975, $35,000, Principal Investigator
“Viterbi Tracking of Randomly Phase Modulated Data,” Army Research Office, Research Triangle Park, October 1979–October 1982, $173,000, Principal Investigator
“HP Software Development Program,” Hewlett-Packard, Fort Collins, CO, January 1979– August 1980, $30,000, Co-Principal Investigator “Stochastic Signal Processing,” Office of Naval Research, January 1975–January 1985, $310,000, Principal Investigator
“Detection, Estimation, and Coding of Waveforms,” Office of Naval Research, September 1985–April 1988, $353,532, Principal Investigator
“Chip- and Cell-Level Architectures for Signal Processing in VLSI,” Office of Naval Research, January 1984–January 1986, $220,000, Principal Investigator
“Algorithms and Architectures for Dynamic Programming in VLSI,” Office of Naval Research, June 1985–December 1988, $320,000, Principal Investigator
“NSF ERC for Optoelectronic Computing Systems,” National Science Foundation, May 1987–May 1997, $14,580,000, Co-Principal Investigator from 1987-1990
“VLSI Chip,” Ball Brothers, Boulder, CO, January 1988–July 1988, $42,000, Principal Investigator
“Statistical Signal Processing Algorithms and VLSI Architectures for Application in Radar and Image Processing,” Ball Brothers, Boulder, CO, August 1988–October 1989, $25,000, Principal Investigator
“Signal Processing in the Linear Statistical Model,” Office of Naval Research, October 1988–November 1991, $398,000, Principal Investigator
“Signal Analysis for the Identification of Power System Dynamics,” Bonneville Power Administration, May 1990–August 1992, $178,521, Principal Investigator
“Signal Processing for Power System Analysis,” Bonneville Power Administration, August 1992–July 1994, $202,000, Principal Investigator
“Matched Subspace Filtering for Detection, Estimation, and Time Series Analysis,” Office of Naval Research, December 1991–September 1994, $407,000, Principal Investigator
“Detection and Estimation in Subspaces,” Office of Naval Research, October 1994–September 1997, $430,000, Co-Principal Investigator
“Statistical Signal Processing and Communication within Subbands,” National Science Foundation, August 1996–July 1997, $61,500, Co-Principal Investigator
“Matched and Adaptive Signal Processing in Subspaces,” Office of Naval Research, October 1997–September 2000, $360,000, Principal Investigator
“Integrated Antennas; Receivers, and Networks for Wireless Communication,” National Science Foundation, October 1999–September 2002, $390,000, Principal Investigator
“Architectures for Low-Rank Signal Processing in Passive and Active Sonar,” Office of Naval Research, October 1999–September 2002, $285,000, Principal Investigator
“Hyperspectral Imaging” Colorado Advanced Software Institute, October 2001–September 2002, $45,000, Principal Investigator
“Signal Processing and Channel Modelling in Low-Dimensional Subspaces for Wireless Communication in Multi-Antenna Systems,” National Science Foundation, October 2001–September 2004, $285,000, Principal Investigator
“A Mathematical Methodology for Managing and Integrating Sensors and Processors in Distributed Systems for Radar and Communication,” Advanced Research Projects Agency, July 2002-Dec 2004, $374,693, Principal Investigator
“Radar Imaging, Target Tracking, and Sensor Scheduling,” ARPA Program in Computational and Applied Mathematics, June 1, 2004-Sept 30, 2006, $494,000, Co-Principal Investigator
“Collaborative Research: Subspace Expansions for Optimization of Transceivers in Multiple Access Communication,” NSF, Sept 2005-Aug 2007, $240,000 (approx), PI
“Waveforms for Active Sensing in Military Operations on Urban Terrains,” DARPA, Sept 2005-Dec 2007, $504,000, co-PI
“Network Security: Detecting Distributed and Coordinated Attacks with Compressed Sensors and Coherence Statistics” AFOSR, STTR, Jan 2010-Dec 31, 2011, $50,000, PI
“Mathematical Infrastructure for Knowledge Enhanced Compressive Measurement,” DARPA, Oct 1, 2010 to Sep 30, 2012, $1,227,796, co-PI
“Information Fusion from the Point of View of Communication Theory: Fusing Information to Trade-Off the Resolution of Assessments Against the Probability of MisAssessment,” AFOSR, Mar 2010-Mar 2013, $360,000, PI
“Compressed Sensing for High-Resolution Image Inversion,” NSF, June 30, 2010-June 30, 2013, $350,000, PI
“Algebraic and Geometric Tools and Algorithms for the Analysis of Data Clouds and Large Data Arrays,” NSF, Sept 1, 2012-Aug 31, 2015, $240,000. Investigator
“Signal Processing and Machine Learning on Manifolds, with Applications to Invariant Detection and Covariant Estimation,” NSF, May 1, 2017-April 30, 2020, $499,000, PI (pending)
Journal Articles: 2019 V. Garg, I. Santamaria, D. Ramirez and L. L. Scharf, “Subspace Averaging and Order Determination for Source Enumeration,” IEEE Trans. Signal Proc., to appear 2019. Digital Object Identifier: 10.1109/TSP.2019.2912151.
Z. Yavo, J.M. Francos, and L.L. Scharf, “Optimal Matched Manifold Detection and Classification,” in revision.
M. Cheney, L. L. Scharf, P. Pakrooh, A. Homan, and M. Ferrara, “Detection of backscattered waves from a target in clutter from a rotating scatterer, SIAM J. Applied Math., to appear.
D. Ramirez, I. Santamaria, L. L. Scharf, and S. Van Vaerenbergh, “Multi-Channel Factor Analysis with Common and Unique Factors,” IEEE Trans Signal Proc, in revised review.
L. L. Scharf, P. Pakrooh, and R. B. Butler, “Coherence Statistics for Adaptive Multipulse Detection of Subspace Signals, IEEE Trans Signal Processing, submitted Aug 2019.
R. Butler, P. Pakrooh, and L. L. Scharf, “A MIMO Version of the Reed-Yu Detector and its Connection to the Wilks Lambda and Hotelling T 2 Statistics,” IEEE Trans Signal Processing, submitted March 2019.
L. L. Scharf and Y. Wang, “Testing for Causality using a Partial Coherence Statistic,” J. Machine Learning Research, submitted June 2019.
L. L. Scharf, P. Pakrooh, and R. B. Butler, ” X. Ma, M. Kirby, C. Peterson, L. Scharf, “Self-Organizing Mappings on the Grassmannian with Applications to Data Analysis in High-Dimensions,” Neural Computing and Applications, to appear.
C. Robbiano, E. K. P. Chong, L. L. Scharf, M. Azimi-Sadjadi, and A. Pezeshki, “Bayesian Learning of Occupancy Grids,” IEEE Trans PAMI, submitted Sept 2019.
2017 I. Santamaria, L. L. Scharf, J. Via, H. Wang, and Y. Wang, “Passive Detection of Correlated Subspace Signals in Two MIMO Channels,” IEEE Trans Signal Processing, vol. 65, no. 7, pp. 1752-1764, Mar 2017.
P. Pakrooh, A. Homan, L. L. Scharf, M. Cheney, and M. Ferrara, “Multipulse Adaptive Coherence for Detection in Wind Turbine Clutter,” IEEE Trans Aerospace and Electronic Systems, Volume: 53, Issue: 6, Dec. 2017.
D. Duan, L. Scharf, and L. Yang, “LD Approach to Asymptotically Optimum Sensor Fusion, IET Communications, vol. 11, no. 5, pp. 680-686, March 2017
2016 V.W. Bandara, L.L. Scharf, R.P. Paffenroth, A.P. Jayasumana, and P.C. DuToit, “Experimental Recovery Regions for Robust PCA,” Signal Processing (Elsevier), to appear 2016.
N. Klausner, M. R. Azimi-Sadjadi, and L. L. Scharf, “Saddlepoint Approximations for Correlation Testing Among Multiple Gaussian Random Vectors,” IEEE Signal Processing Letters, vol 23, no 5, pp 703-707, May 2016..
Pooria Pakrooh, Louis L. Scharf, and Ali Pezeshki, “Threshold Effects in Parameter Estimation from Compressed Data,” IEEE Trans Sign Proc, vol 64, no 9, pp 2345-2364; http://arxiv.org/abs/1505.07431
Pooria Pakrooh, Louis L. Scharf, and Ali Pezeshki, “Modal Analysis Using Sparse and Co-prime Arrays,” IEEE Trans. Sign. Proc., vol 64, no 9, pp 2429-2442, 2016; http://arxiv.org/abs/1504.01258
2015 Pooria Pakrooh, Ali Pezeshki, Louis L. Scharf, Douglas Cochran, and Stephen D. Howard, “Analysis of Fisher Information and the Cramer-Rao Bound for Nonlinear Parameter Estimation after Random Compression,” IEEE Trans Sign Proc, vol 63, no 23, pp 6423-6428, Dec 2015 http://arxiv.org/abs/1504.01081
D. Ramrez, P. J. Schreier, J. Va, I. Santamara, and L. L. Scharf, “Detection of multivariate cyclostationarity,” IEEE Trans Signal Process, 63(20):5395-5408, October 2015.
A. Pezeshki, Y. Chi, L. L. Scharf, E.K.P. Chong, “Compressed sensing, sparse inversion, and model mismatch,” Compressed Sensing and its Applications, Birkhuser, pp 75-95, 2015.
2014 Y. Wang, H. Wang, and L.L. Scharf, “Optimal Compression of a Noisy Measurement for Transmission over a Noisy Channel,” IEEE Trans Signal Processing, vol.62, no.5, pp.1279-1289, March 1, 2014.
Y. Wang, H. Wang, and L.L. Scharf, “The Geometry of Fusion-Inspired Channel Design,” Signal Proc, vol 99, June 2014, pps 136-146, ISSN 0165-1684, http://dx.doi.org/10.1016/j.sigpro.2013.12.015.
E. Liu, E.K.P. Chong, and L.L. Scharf, ”Greedy Adaptive Linear Compression in SignalPlus-Noise Models,” IEEE Trans Inform Theory, vol 60, no 4, pp 2269-2280, Apr 2014.
N. Klausner, M.R. Azimi-Sadjadi, and L.L. Scharf, “Detection of Spatially Correlated Time Series from a Network of Sensor Arrays,” IEEE Trans Signal Processing, vol 62, No 6, pp 1396-1407, Mar 2014.
2013 D. Ramirez, J. Via, I. Santamaria, and L.L. Scharf, “Locally Most Powerful Invariant Tests for Correlation and Sphericity of Gaussian Vectors,” IEEE Trans Inform Theory, vol. 59, no. 4, pp 2128-2141 (Apr 2013)
R. Paffenroth, P. du Toit, R. Nong, L. Scharf, A. Jayasumana, and V. Bandara, “Spacetime signal processing for distributed pattern detection in sensor networks,” IEEE Journal of Selected Topics in Signal Processing, vol 7, no 1, pp. 38-49, Feb 2013.
2012 W. Dang and L.L. Scharf, “Extensions to the Theory of Widely Linear Complex Kalman Filtering,” IEEE Trans Signal Proc, vol. 60, no. 12, pp 6669-6674 (Dec 2012).
2011 T. Adali, P.J. Schreier, and L.L. Scharf, ”Complex-valued Signal Processing: The Proper Way to Deal with Impropriety,” IEEE Trans Sign Proc., vol 59, no 11, pp 5101-5125, Nov 2011.
Y. Chi, L.L. Scharf, A. Pezeshki, and A.R. Calderbank, “Sensitivity to Basis Mismatch in Compressed Sensing,” IEEE Trans Signal Processing, vol 59, no 5, pp 2182-2195, May 2011 (Won 2014 SPS Young Author Best Paper Award).
B. Johnson, Y. Abramovich, and L.L. Scharf, “Detection-Estimation of Multi-Rank Gaussian Sources Using Expected Likelihood,” DSP (Elsevier), Aug. 2011.
2010 A. Pezeshki, L. L. Scharf, and E. K. P. Chong, “Geometry of linearly and quadratically constrained optimization problems for signal processing and communications,” Journal of The Franklin Institute: Special issue on Modeling Simulation in Advanced Communications, vol. 347, no. 5, pp. 818-835, Jun. 2010.
D. Ramirez, J. Via, I. Santamaria, and L.L. Scharf, “Detection of Spatially-Correlated Gaussian Time Series,” IEEE Trans Signal Processing, vol 58, no 10, pp 5006-5015 (Oct 2010) (Won 2013 SPS Young Author Best Paper Award).
2008 L. L. Scharf, E. K. P. Chong, J. S. Goldstein, M. D. Zoltowski, and I.S. Reed, “ Subspace Expansion and the Equivalence between Conjugate Direction and Multistage Wiener Filters,” IEEE Trans Signal Processing, vol 56, no 10, pp 5013-5019, October 2008
Z. Fan, L.L. Scharf, and J.A. Gubner “Analog Precoders and Equalizer Designs and Their Geometry for Multichannel Communication,” IEEE Trans Wireless Communications, vol 7, no 8, pp 2957-2963, August 2008
A. Pezeshki, B.D. Van Veen, L.L. Scharf, H. Cox, and M. Lundberg, “Eigenvalue Beamforming using a Generalized Sidelobe Canceller and Subset Selection,” IEEE Trans Signal Processing, 56, No 4, pp 1954-1967, May 2008
2007 A. Pezeshki, M.R. Azimi-Sadjadi, and L. L. Scharf, “Undersea target classification using canonical coordinate analysis,” IEEE J. Oceanic Engr, 32, No 4, pp 948-955, October 2007
F. Bandiera, O. Besson, D. Orlando, G. Ricci, and L.L. Scharf, “GLRT-Based Direction Detectors in Noise and Subspace Interference,” IEEE Trans Signal Processing, 55, no 6, pp 2386-2394 (June 2007)
H. Ge, L. L. Scharf, M. Lundberg, and Z. Fan, ”Warp Converging Reduced-Rank Conjugate Gradient Wiener Filters for Multiuser Detection,” IEEE Transactions on Communications, revised and re-submitted July 2007.
A. Salberg, A. Hanssen, and L.L. Scharf ”Robust Multidimensional Matched Subspace Classifiers based on Weighted Least Squares,” IEEE Trans Signal Processing, 55, no 3, pp 873-880, Mar 2007
2006 T.A. Oigard, A. Hanssen, and L.L. Scharf, “Spectral correlations of fractional Brownian motion,” Phys Rev. E, vol 74, DOI: 10.1103/PhysRevE.74.03144, 2006
O. Besson, L.L. Scharf and S. Kraut, ”Adaptive detection of a signal known only to lie on a line in a known subspace, when primary and secondary data are partially homogeneous”, IEEE Transactions Signal Processing, 54, no 12, pp 4698-4705 (Dec 2006)
A. Pezeshki, L. L. Scharf, J. K. Thomas, and B. D. Van Veen, “Canonical Coordinates are the Right Coordinates for Low-Rank Gauss-Gauss Detection and Estimation,” IEEE Trans. Signal Proc., 54, no. 12, pp. 4817-4820, Dec. 2006.
D.C. Farden and L.L. Scharf, “A Unified Framework for the Sussman, Moyal, and Janssen Formulas,” IEEE Signal Processing Magazine, pp 124-125, May 2006
P.J. Schreier, L.L. Scharf, and A. Hanssen, “A Generalized Likelihood Ratio Test for Impropriety of Complex Signals,” IEEE Signal Processing Letters, 13, no 7, pp 433436, July 2006
O. Besson, S. Kraut and L.L. Scharf, ”Detection of an unknown rank-one component in white noise”, IEEE Transactions Signal Processing, 54, no 7, pp 2835-2840, July 2006
O. Besson and L.L. Scharf ”CFAR Matched Direction Detector”, IEEE Transactions Signal Processing, 54, no 7, pp 2840-2844, July 2006
P.J. Schreier, L.L. Scharf, ”Higher order spectral analysis of complex signals,” Signal Processing, March 2006
P.J. Schreier and L.L. Scharf ”Canonical Coordinates for Transform Coding of Noisy Sources,” IEEE Trans Signal Processing, 54, no 1, pp 235-243, Jan 2006.
2005 O. Besson, L.L. Scharf, F. Vincent, “Matched Direction Detectors and Estimators for Array Processing with Subspace Steering Vector Uncertainties,” IEEE Trans Signal Processing, 53, No 12, pp 4453-4463 (Dec 2005)
L.L. Scharf, Peter Schreier, and Alfred Hanssen,“The Hilbert Space Geometry of the Rihaczek Distribution for Stochastic Analytic Signals IEEE Signal Proc Letters, 12, 4, pp 297-301 (April 2005)
S. Kraut, L.L. Scharf, and R. Butler, ”The Adaptive Coherence Estimator: a UniformlyMost-Powerful- Invariant Adaptive Detection Statistic,” IEEE Trans Signal Processing, 53, 2, pp 427-438, Feb 2005 (Won 2007 SPS Young Author Best Paper Award).
P.J. Schreier, L.L. Scharf, C.T. Mullis, ”Detection and estimation of improper complex random signals,” IEEE Trans. Inform. Theory, 51, 1, pp 306-312, Jan. 2005, ¡http://dsp.colorado.edu/ pjs/publ/ieeeit3.pdf¿
A. Pezeshki, L.L. Scharf, M. R. Azimi-Sadjadi, and Y. Hua, “Two-channel constrained least squares problems: solutions using power methods and connections with canonical coordinates,” IEEE Trans. on Signal Processing, 53, 1, pp 121-135, Jan 2005
2004 J. Gubner and L.L. Scharf, “Detection of Constrained Subspace Signals in Additive Infinite-Dimensional Interference and Noise,” IEEE Trans. Inform. Theory, 50, 11, pp 2873-2879, Nov 2004
2003 P.J. Schreier, L.L. Scharf, ”Stochastic time-frequency analysis using the analytic signal: why the complementary distribution matters,” IEEE Trans. Signal Processing, vol. 51, no. 12, pp. 3071 – 3079, Dec 2003,
A. Pezeshki, M.R. Azimi-Sadjadi, and L. L. Scharf, “A network for recursive extraction of canonical coordinates,” Neural Networks, vol. 16(5-6), pp. 801-808, July 2003.
A. Hanssen and L.L. Scharf, ”A theory of polyspectra for nonstationary stochastic processes,” IEEE Trans. Signal Processing, 51, no. 5, pp. 1243-1252, 2003.
P.J. Schreier, L.L. Scharf, ”Second-order analysis of improper complex random vectors and processes,” IEEE Trans Signal Proc,, 51, no. 3, pp. 714 – 725, Mar 2003, ¡http://dsp.colorado.edu/ pjs/publ/ieeesp1.pdf¿
M.L. McCloud, L.L. Scharf, and M. Varanasi, “Beamforming, Diversity, and Interference Rejection for Communication over Fading Channels using a Receive Antenna Array,” IEEE Trans Commun, 50, no 1, pp 116-124 , Jan 2003
2002 L.L. Scharf and M.L. McCloud,“Blind Adaptation of Zero-Forcing Projections and Oblique Pseudo-Inverses for Detection and Estimation when Interference Dominates Noise,” IEEE Trans Signal Proc, 50, no 12, pp 2938-2946, Dec 2002
M.L. McCloud and L.L. Scharf, ”A New Subspace Identification Algorithm for High Resolution DOA Estimation,” IEEE Trans Ant and Prop, 50, no 10, pp 1382-1390, Oct 2002.
2001 S. Kraut, L. L. Scharf, and L. T. McWhorter, “Adaptive Subspace Detectors,” IEEE Trans Signal Proc, 49, no 1, pp 1-16, Jan 2001
L.L. Scharf and B. Friedlander,“Toeplitz and Hankel Kernels for Estimating Time-Varying Spectra of Discrete-Time Random Processes,” IEEE Trans Signal Proc, 49, no 1, pp 179-189, Jan 2001
M.L. McCloud and L.L. Scharf, “Asymptotic Analysis of the MMSE Multiuser Detector for Non-Orthogonal Multipulse Modulation,” IEEE Trans on Commun, 49, no 1, pp 24-30, Jan 2001
2000 L. L. Scharf and C. T. Mullis, “Canonical Coordinates and the Geometry of Inference, Rate and Capacity,” 48, 3, pp 824–831, IEEE Trans Signal Proc, (March 2000).
M. L. McCloud and L. L. Scharf, “Interference Estimation with Applications to Blind Multiple Access Communications over Fading Channels,” IEEE Trans Inform Th, 46, 3, pp 947-961, (May 2000).
L. L. Scharf, L. T. McWhorter, and S. Kraut, “Adaptive Coherence Estimators for Detection,” Signal Processing (European journal), Dec 2000.
1999 S. Kraut and L. L. Scharf, “The CFAR Adaptive Subspace Detector is a Scale-Invariant GLRT,” IEEE Trans Signal Proc 47. 9, pp 2538-2541 September 1999.
L. L. Scharf, and S. Kraut, “Geometries, Invariances, and SNR Interpretations of Matched and Adaptive Subspace Detectors,” Traitment du Signal, 15, 6, pp. 527-534 May 1999
M. L. McCloud, L. L. Scharf, C. T. Mullis, “Lag-Windowed and Multiply-Data-Windowed Spectrum Estimators are Roughly Equivalent,” IEEE Trans Signal Proc Vol 47, 3, 00 839-843 March 1999.
1998 J. Scott Goldstein, I. S. Reed, and L. L. Scharf, “A Multistage Representation of the Wiener Filter Based on Orthogonal Projections,” IEEE Trans Inform Th 44, 7, pp 2943-2959 (November 1998).
L. L. Scharf and J. K. Thomas, “Wiener Filters in Canonical Coordinates for Transform Coding, Filtering, and Quantizing,” IEEE Trans Signal Proc 46:3, pp. 647–654 (March 1998).
L. T. McWhorter and L. L. Scharf, “Multiwindow Estimators of Correlation,” IEEE Trans Signal Proc 46:2, pp. 440–448 (February 1998).
1996 E. M. Dowling, R. D. DeGroat, D. A. Linebarger, L. L. Scharf, and M. Vis, “Reduced Polynomial Order Linear Prediction,” IEEE Signal Proc Lett 3, pp. 92–94 (March 1996).
1995 L. T. McWhorter and L. L. Scharf, “Nonlinear Maximum Likelihood Estimation of Autoregressive Time Series,” IEEE Trans Signal Proc 43:12, pp. 1–11 (December 1995).
J. Thomas, L. L. Scharf, and D. W. Tufts, “Probability of a Subspace Swap,” IEEE Trans Signal Proc 43:3, pp. 730–737 (March 1995).
A. Thorpe and L. L. Scharf, “Data Adaptive Rank Shaping Methods for Solving Least Squares Problems,” IEEE Trans Signal Proc 43:7, pp. 1591–1601 (July 1995).
1994 M. L. Vis and L. L. Scharf, “A Note on Recursive Maximum Likelihood,” IEEE Trans Signal Proc SP-42:10, pp. 2881–2883 (October 1994).
L. L. Scharf and B. Friedlander, “Matched Subspace Detectors,” IEEE Trans Signal Proc SP-42:8, pp. 2146–2157 (August 1994).
M. P. Clark and L. L. Scharf, “Two-Dimensional Modal Analysis Based on Maximum Likelihood,” IEEE Trans Signal Proc SP-42:6, pp. 1443–1452 (June 1994).
R. T. Behrens and L. L. Scharf, “Signal Processing Applications of Oblique Projection Operators,” IEEE Trans Signal Proc 42:6, pp. 1413–1424 (June 1994).
S. D. Voran and L. L. Scharf, “Polar Coordinate Quantizers, IEEE Trans Signal Proc 42:6, pp. 1559–1563 (June 1994).
1993 L. T. McWhorter and L. L. Scharf, “Cramer-Rao Bounds for Deterministic Modal Analysis,” IEEE Trans Signal Proc 41, pp. 1847–1862 (May 1993).
L. L. Scharf and L. T. McWhorter, ”Geometry of the Cramer-Rao Bound,” Signal Processing 31:3, pp. 1–11 (April 1993).
1992 M. P. Clark and L. L. Scharf, “On the Complexity of IQML Algorithms,” IEEE Trans Signal Proc 40, pp. 1811–1813 (July 1992).
1991 L. L. Scharf, “The SVD and Reduced-Rank Signal Processing,” Signal Processing 24, pp. 111–130 (November 1991).
W. P. Burleson and L. L. Scharf, “A VLSI Design Methodology for Distributed Arithmetic,” Journ VLSI Signal Proc 2, pp. 235–252 (1991).
1990 B. D. Van Veen and L. L. Scharf, “Estimation of Structured Covariance Matrices and Multiple Window Spectrum Analysis,” IEEE Trans ASSP 38:8, pp. 1467–1472 (August 1990).
C. J. Demeure and L. L. Scharf, “Sliding Windows and Lattice Algorithms for Computing QR Factors in the Least Squares Theory of Linear Prediction,” IEEE Trans ASSP ASSP-38:4, pp. 721–725 (April 1990).
J. F. Hauer, C. J. Demeure, and L. L. Scharf, “Initial Results in Prony Analysis of Power System Response Signals,” IEEE Trans Power Sys PS-5:1, pp. 80–90 (February 1990).
1989 C. P. Rialan and L. L. Scharf, “Fixed-Point Error Analysis of the Lattice and the Schur Algorithms for the Autocorrelation Method of Linear Prediction,” IEEE Trans ASSP ASSP-37:12, pp. 1950–1957 (December 1989).
W. P. Burleson and L. L. Scharf, “A VLSI Design Methodology for Distributed Arithmetic,” IEEE Trans Computers, special issue on Computer Arithmetic (October 1989).
W. G. Bliss and L. L. Scharf, “Algorithms and Architectures for Dynamic Programming on Markov Chains,” IEEE Trans ASSP ASSP-37:6, pp. 900–912 (June 1989).
W. P. Burleson and L. L. Scharf, “A Systolic VLSI Chip for Implementing Orthogonal Transforms,” Special Issue on Custom IC Technologies, IEEE Journ Solid State Circuits SC-24 (April 1989).
1988 C. P. Rialan and L. L. Scharf, “Fast Algorithms for QR and Cholesky Factors of Toeplitz Operators,” IEEE Trans ASSP ASSP-36:11, pp. 1740–1748 (November 1988).
1987 L. L. Scharf and B. D. Van Veen, “Low Rank Detectors for Gaussian Random Vectors,” IEEE Trans ASSP, ASSP-35:11, pp. 1579–1582 (November 1987).
C. P. Rialan and L. L. Scharf, “Cellular Architectures for Implementing Projection Operators,” IEEE Trans ASSP, ASSP-35:11, pp. 1619–1617 (November 1987).
L. L. Scharf and D. W. Tufts, “Rank Reduction for Modeling Stationary Signals,” IEEE Trans ASSP, ASSP-35:3, pp. 350–355 (March 1987).
C. J. Demeure and L. L. Scharf, “Linear Statistical Models for Stationary Sequences and Related Algorithms for Cholesky Factorization of Toeplitz Matrices,” IEEE Trans ASSP, ASSP-35:1, pp. 29–42 (January 1987).
1986 J. P. Dugré, L. L. Scharf, and C. Gueguen, “Exact Likelihood for Stationary Vector Autoregressive Moving Average Processes,” Signal Processing, 11:2, pp. 105–118 (September 1986).
R. Kumaresan, L. L. Scharf, and A. K. Shaw, “An Algorithm for Pole-Zero Modeling and Spectral Analysis,” IEEE Trans ASSP, ASSP-34:3, pp. 637–640 (June 1986).
N. Judell and L. Scharf, “A Simple Derivation of Lloyd’s Classical Result for the Optimum Scalar Quantizer,” IEEE Trans Inform Th, IT-32:2, pp. 326–328 (March 1986).
1984 L. L. Scharf and S. Sigurdsson, “Fixed-Point Implementation of Fast Kalman Predictors,” IEEE Trans Autom Contr, AC-29:9, pp. 850–852 (September 1984).
R. Kumaresan, D. W. Tufts, and L. L. Scharf, “A Prony Method for Noisy Data: Choosing the Signal Components and Selecting the Order in Exponential Signal Models,” Proc IEEE, 72:2, pp. 230–233 (February 1984).
1981 L. L. Scharf and H. Elliott, “Aspects of Dynamic Programming in Signal and Image Processing,” IEEE Trans Autom Contr, AC-26:5, pp. 1018–1029 (October 1981).
A. A. Beex and L. L. Scharf, “Covariance Sequence Approximation for Parametric Spectrum Modeling,” IEEE Trans ASSP, ASSP-29:5, pp. 1040–1051 (October 1981).
O. Macchi and L. L. Scharf, “A Dynamic Programming Algorithm for Phase Estimation and Data Decoding on Random Phase Channels,” IEEE Trans Inform Th, IT-27:5, pp. 581–595 (September 1981).
A. A. Beex and L. L. Scharf, “Recursive Digital Filter Design via Covariance Sequence Approximation,” IEEE Trans ASSP, ASSP-29:1, pp. 51–57 (February 1981).
1980 L. L. Scharf, D. D. Cox, and C. J. Masreliez, “Modulo-2π Phase Sequence Estimation,” IEEE Trans Inform Th, IT-26:5, pp. 615–620 (September 1980).
J. P. Dugre, A. A. Beex, and L. L. Scharf, “Generating Covariance Sequences and the Calculation of Quantization and Rounding Error Variances in Digital Filters,” IEEE Trans ASSP, ASSP-28:1, pp. 102–104 (February 1980).
1979 L. L. Scharf and J. C. Luby, “Statistical Design of Autoregressive Moving Average Digital Filters,” IEEE Trans ASSP, ASSP-27:3, pp. 240–247 (June 1979).
J. F. Kinkel, J. Perl, L. L. Scharf, and A. R. Stubberud, “A Note on Covariance-Invariant Digital Filter Design and Autoregressive Moving Average Spectrum Analysis,” IEEE Trans ASSP, ASSP-27:2, pp. 200–202 (April 1979).
1978 H. Clergeot and L. L. Scharf, “Connections between Classical and Statistical Methods of FIR Digital Filter Design,” IEEE Trans ASSP, ASSP-26:5, pp. 463–465 (October 1978).
L. L. Scharf and D. L. Alspach, “Nonlinear State Estimation in Observation Noise of Unknown Covariance,” Int J Control, 27:2, pp. 293–304 (February 1978).
1977 J. Perl and L. L. Scharf, “Covariance-Invariant Digital Filtering,” IEEE Trans ASSP, ASSP-25:2, pp. 143–152 (April 1977).
L. L. Scharf and L. W. Nolte, “Likelihood Ratios for Sequential Hypothesis Testing on Markov Sequences,” IEEE Trans Inform Th, IT-23:1, pp. 101–109 (January 1977).
1976 L. L. Scharf and P. H. Moose, “Information Measures and Performance Bounds for Array Processors,” IEEE Trans on Inform Th, IT-22:1, pp. 11–21 (January 1976).
1975 D. C. Farden and L. L. Scharf, “Authors’ Reply to ‘Comments on Statistical Design of Nonrecursive Digital Filters’,” IEEE Trans ASSP, ASSP-23:5, pp. 495–497 (October 1975).
1974 R. L. Swarts and L. L. Scharf, “Note on Acoustic Scattering from Random Amplitude/Random Phase Sinusoidal Sea Surfaces,” J Acoust Soc Am, 56:2, pp. 686–687 (August 1974).
D. C. Farden and L. L. Scharf, “Statistical Design of Nonrecursive Digital Filters,” IEEE Trans ASSP, ASSP-22:3, pp. 188–196 (June 1974).
L. L. Scharf and R. L. Swarts, “Acoustic Scattering from a Stochastic Sea Surface,” J Acoust Soc Am, 55:2, pp. 247–253 (February 1974).
D. L. Alspach, L. L. Scharf, and A. Abiri, “A Bayesian Solution to the Problem of State Estimation in an Unknown Noise Environment,” Int J Control, 19:2, pp. 265–287 (February 1974).
R. L. Swarts and L. L. Scharf, “Note on Acoustic Scattering from Random Amplitude/Random Phase Sinusoidal Sea Surfaces,” J Acoust Soc Am, 56:2, pp. 686–687 (August 1974). D. C. Farden and L. L. Scharf, “Statistical Design of Nonrecursive Digital Filters,” IEEE Trans ASSP, ASSP-22:3, pp. 188–196 (June 1974).
L. L. Scharf and R. L. Swarts, “Acoustic Scattering from a Stochastic Sea Surface,” J Acoust Soc Am, 55:2, pp. 247–253 (February 1974).
D. L. Alspach, L. L. Scharf, and A. Abiri, “A Bayesian Solution to the Problem of State Estimation in an Unknown Noise Environment,” Int J Control, 19:2, pp. 265–287 (February 1974).
1973 L. L. Scharf and D. W. Lytle, “Stability of Parameter Estimates for a Gaussian Process,” IEEE Trans Aerospace and Electronic Systems, AES-6, pp. 847–851 (November 1973).
R. D. Martin and L. L. Scharf, “Simulation of Processes with Non-Separable Covariances,” IEEE Trans Autom Contr, AC-18:5, pp. 546–547 (October 1973).
L. L. Scharf, “State Model of a Pseudo-Innovations Process,” IEEE Trans Autom Contr, AC-18:5, pp. 547–548 (October 1973).
L. L. Scharf, “Invariant Gauss-Gauss Detection,” IEEE Trans Inform Th, IT-19:4, pp. 422–427 (July 1973).
1971 L. L. Scharf and D. W. Lytle, “Signal Detection in Gaussian Noise of Unknown Level: An Invariance Application,” IEEE Trans Inform Th, IT-17:4, pp. 404–411 (July 1971).
D. W. Lytle, P. H. Moose, and L. L. Scharf, “Comments on ‘Nonparametric Detection’,” Proc IEEE, 58:6, pp. 1018–1019 (June 1971).
L. L. Scharf and C. E. Schmid, “Testing for Isotropy,” J Acoust Soc Am, 49:4, pp. 1092– 1099 (April 1971).
1970 L. L. Scharf, “On the Prewhitening Nature of Optimum Filters,” Proc IEEE, 58:9, pp. 1360–1361 (September 1970). L. L. Scharf, “A Computer-Simulated Method of Phase-Plane Displacements,” Trans ASME, J Basic Engr, 92:Series D, No. 2, pp. 233–237 (June 1970).
1969 L. L. Scharf, W. P. Harthill, and P. H. Moose, “A Comparison of Expected Flight Times for Intercept and Pure Pursuit Missiles,” IEEE Trans Aerospace and Electronic Systems, AES-5:4, pp. 672–673 (July 1969).