• [PDF]

Thesis Material

• Multicomponent AM--FM Energy Demodulation with Applications to Signal Processing and Communications.
• Slides From Multicomponent AM--FM Demodulation Talk
   

Slides from Recent Presentations

• Slides from UNM pediatric heart center talk
• Slides From IEEE 2002 DSP WORKSHOP
• Slides From ACSSC--2003
• Slides From ARO-MURI REVIEW 2002
• Slides From ARO-MURI REVIEW 2004  
• Slides From ICASSP--2004
• Slides from 2004 DSP WORKSHOP: (a) Malay, (b) Juan
   

Technical Reports

• Balu Santhanam, "Non Stationary Signal Analysis, Energy Demodulation and the Multicomponent AM--FM Signal Model," EECE-TR-2001-01:ECE Technical Report.
• O. Lankoande, Majeed Hayat, and Balu Santhanam, "Specle Reduction of SAR Images Based on a Combined Markov Random Field and Statistical Optics Approach," ECE-TR-2004-21: ECE Technical Report.
• Balu Santhanam and Juan G. Vargas Rubio, " On the Grunbaum Commutor Based Discrete Fractional Fourier Transform, " ECE-TR-2004-22: ECE Technical Report.
• Balu Santhanam and T. S. Santhanam, " On Discrete Gauss Hermite Functions and Eigenvectors of the Discrete Fourier Transform, " ECE Technical Report: http://hdl.handle.net/1928/2974.

Journal Articles

• Balu Santhanam and J. H. McClellan, "Discrete Rotational Fourier Transform, "IEEE Transactions on Signal Processing, Vol. 44, No. 4, pp. 994 - 997, 1996. [PDF]
• Balu Santhanam and P. Maragos, "Energy Demodulation of Two--Component AM--FM Signal Mixtures," IEEE Signal Processing Letters, Vol. 3, No. 11, pp. 294 - 299, Nov 1996. [PDF]
• Balu Santhanam and Petros Maragos, "Harmonic Analysis and Restoration Separation Methods for Periodic Signal Mixtures: Algebraic Separation Vs. Comb Filtering, "Signal Processing, Vol. 69, No. 1, pp. 81-91, 1998. [PDF]
• Balu Santhanam and P. Maragos, "Multicomponent AM--FM Demodulation via Periodicity--based Algebraic Separation and Energy--based Demodulation, "IEEE Transactions on Communications, Vol. 48, No. 3, pp. 473 - 490, March 2000. [PDF]
• Balu Santhanam, "Generalized Energy Demodulation For Large Frequency Deviations and Wideband Signals," IEEE Signal Processing Letters, Vol. 11, No. 3, pp. 341 - 344, March, 2004. [PDF]
• E.-T.Wu, B. Santhanam, S.R.J. Brueck, "Characterization of Imaging interferometric Lithography and Optimization in Simulation" Journal of Microlithography, Microfabrication, and Microsystems, Vol.4, No.2, 023009, April-June, 2005.
• T.M.Tridhavee, Balu Santhanam, S.R.J.Brueck, "Optimal Frequency Coverages and Parsings for Imaging Interferometric Lithography," Journal of Microlithograhy, Microfabrication, and Microsystems, Vol.4, No.3, 033005, July-September, 2005.
• J.G.Vargas and Balu Santhanam, "On the Multiangle Centered Discrete Fractional Fourier Transform," IEEE Signal Processing Letters, Vol.12, No.4, pp.273-276, April 2005. [PDF]
• O. Lankoande, Majeed Hayat, and Balu Santhanam," Scene Estimation from Speckled Synthetic Aperture Radar Imagery," Journal of the Optical Society of America A, Vol. 23, No. 6, pp. 1269-1281, June 2006.
• Balu Santhanam and Thalanayar S. Santhanam," On Discrerte Gauss--Hermite Functions and Eigenvectors of the Discrete Fourier Transform," Signal Processing, Elsevier Science, Vol. 88, No. 6, pp. 2738-2746, Nov. 2008. [PDF]
• David Boutte and Balu Santhanam," A Hybrid ICA-SVM Approach to Continuous Phase Modulation Recognition," IEEE Signal Processing Letters, Vol. 16, No.5, May 2009. [PDF]
• Thalanayar Santhanam and Balu Santhanam," The Discrete Fourier Transform and the Quantum Mechanical Oscillator in a Finte-Dimensional Hilbert Space," Journal Of Physcis A: Theoretical, Vol. 42, pp. 205303, May 2009.
• Qi Wang, M. Pepin, R. J. Beach, R. Dunkel, T. Atwood, B. Santhanam, W.Gerstle, A. W. Doerry, and M. M. Hayat, ''SAR-based Vibration Estimation\ using the Discrete Fractional Fourier Transform," To Appear IEEE Transactions on Geoscience and Remote Sensing, 2012.
• Balu Santhanam, ''Orthogonal Modes of Frequency Modulation and the Sturm-Liouville Frequency Modulation Model," To Appear, IEEE Transactions on Signal Processing, 2012.
• Balu Santhanam, ''On a Matrix Frameowrk for The Teager-Kaiser Energy Operator," Under Review, IEEE Signal Processing Letters, April 2012.

Conference Articles

• Balu Santhanam and J. H. McClellan, "The DRFT - A Rotation in Time--Frequency Space,"Proceedings of ICASSP-95, vol. 2, pp. 921 - 925, May 1995. [PDF]
• Balu Santhanam and T. S. Santhanam, "A note on the Angular Fourier Transformation, "Proceedings of the International Workshop on Harmonic Oscillators, Cocoyoc, Mexica, pp. 249 - 254, March 1994.
• Petros Maragos, A. Potamianos and B. Santhanam, Instantaneous Energy Operators: Applications to Speech Processing and Communications, Proceedings of NSIP-95. [PDF]
• Balu Santhanam and P. Maragos, Energy Demodulation of Two--Component AM--FM Signals with Application to Speaker Separation, Proceedings of ICASSP-96, pp. 3518 - 3521, May 1996. [PDF]
• Balu Santhanam and P. Maragos, Demodulation of Discrete Multicomponent AM--FM Signals Using Periodic Algebraic Separation And Energy Demodulation, Proceedings of ICASSP--97, Vol.3 , pp. 2409 - 2412, April 1997. [PDF]
• Balu Santhanam, "Algebraic Separation applied to Concurrent Vowel Separation and ECG Signal Separation," Proceedings of 34th Asilomar Conference on Signals, Systems, and Computers, Vol.2, pp. 1507-1511, Pacific Grove CA, Nov. 2000. [PDF]
• Balu Santhanam, "Component Enumeration of Multicomponent AM--FM Signals Via Generalized Energy Operators," Proc. ICASSP-02, Vol.2, pp. 1437 - 1440, May 2002. [PDF]
• B. Santhanam and J.G.Vargas-Rubio, "On the Grunbaum Commutor based Discrete Fractional Fourier Transform, Proc. of ICASSP-04, Montreal, Canada, Vol. II, pp. 641-644, May 2004 [PDF]
• B. Santhanam and M. Gupta, "Energy Separation and Demodulation of CPM Signals," Proc. of IEEE DSP Workshop, Pine Mountains, Georgia, pp.20-23, Oct, 2002. [PDF]
• Eric Wu, Balu Santhanam and S.R.J. Brueck, "Grating Analysis of Frequency Parsing Strategies for Imaging Interferometric Lithography," Proc. of SPIE Conference on Microlithography, Vol. 5040, pp. 1276 - 1283, Feb 2003.
• Malay Gupta and Balu Santhanam, "Adaptive Linear Prediction Based Frequency Tracking and CPM Demodulation," Invited paper, Proceedings of ASILOMAR 2003, Vol. 1, pp. 202-206, Nov. 2003. [PDF]
• T.M. Tridhavee, Balu Santhanam and S.R.J. Brueck, "Optimization of Frequency Parsing Strategies for Imaging Interferometric Lithograhy, Proceeding of SPIE Conference on Optical Microlithography, pp. 1544-1554, Vol. 5377, May 2004.
• J.G.Vargas-Rubio and Balu Santhanam, "The Centered Discrete Fractional Fourier Transform and Linear Chirp Signals," Proc. of 11th IEEE DSP & DSP Education Workshop, pp.163-167, Taos Ski Valley, New Mexico, Aug, 2004. [PDF]
• Malay Gupta and Balu Santhanam, "ICA Based Blind Adaptive MAI Suppression in DS--CDMA Systems," Proc. of 11th IEEE DSP and SP Education Workshop, pp.201-205, Taos Ski Valley, New Mexico, Aug 2004. [PDF]
• Osseini Lankoande, Majeed Hayat, and Balu Santhanam, " Speckle Reduction of SAR images using a Physically based Markov Random Field Model and Simulated Annealing," Proc. of SPIE Conference on Algorithms for Synthetic Aperture Radar Imagery XII, Vol. 5808, pp. 210-221, May 2005.
• Malay Gupta and Balu Santhanam, "Prior ICA Based Blind Multiuser Detection in DS--CDMA Systems," In Proc. of ACSSC-04, Vol. 2, pp. 2155-2159, Nov 2004. [PDF]
• J.G. Vargas-Rubio and Balu Santhanam, " An Improved Spectrogram Using the Multiangle Centered Discrete Fractional Fourier Transform," Proc. of ICASSP-05, Vol. IV, pp.505-508, March 2005. [PDF]
• Ousseini Lankoande, Majeed Hayat, and Balu Santhanam, "Speckle Modeling and Reduction in Synthetic Aperture Radar Imageery," In Proc. of ICIP-2005, Vol. III, pp. 317-320, Aug. 2005.
• Ousseini Lankoande, Majeed Hayat, and Balu Santhanam, " Segmentation of SAR Images Based on a Markov Random Field Model, " In Proc. of IEEE SMC-2005, pp.2956-2961, Oct. 2005.
• Malay Gupta and Balu Santhanam, " On the Unimodality of the Deflation Based Fast-ICA Contrast," Proc. of ACSSC-05, pp. 237-241, Nov. 2005.
• Malay Gupta and Balu Santhanam, " A General Approach Towards Blind Multiuser Detection Using Higher-Order Statistics," Proc. of IEEE WCNC, Vol. 3, pp. 1585-1590, April 2006.
• Malay Gupta and Balu Santhanam, " Hebbian Learning Based Blind Adaptive Multiuser Detection in DS-CDMA Systems," Proc. of IEEE WCNC, Vol. 2, pp. 1102-1107, April 2006.
• Malay Gupta and Balu Santhanam, " Joint Multiuser Detection and Channel Estimation Using Higher-order Statistics," To appear in Proc. of ICC-06, Istanbul, Turkey, June 2006.
• S. L. Reddy, Balu Santhanam, Majeed Hayat ," Multicomponent Chirp Demodulation Using Discrete Fractional Fourier Analysis," Proc. of IEEE DSP Workshop, Jackson Hole, Wyoming, pp. 418-422, Sept 2006.
• Balu Santhanam and T. S. Santhanam, " Discrete Gauss Hermite Functions and Eigenvectors of the Centered Discrete Fourier Transform," Proc. of ICASSP 2007, Honolulu, pp. 418-422, April 2007. [PDF]
• David Boutte and Balu Santhanam, " ISI Effects in a ICA-SVM Hybrid Modulation Recognition Algorithm," Proc. of ACSSC 2008, Pacific Grove, CA, Oct. 2008.
• David Boutte and Balu Santhanam, " A Feature Weighted Hybrid ICA-SVM Approach to Hybrid Modulation Recognition," Proc. of IEEE DSP Workshop, pp. 399-403, Marcos Island, Fl, Jan 2009.
• S. L. Reddy, Balu Santhanam, and M.H. Hayat, " Cochannel FM Deomodulation Via the Multiangle Discrete Fractional Fourier Transform, " Proc. of IEEE DSP Workshop, pp. 535-539, Marcos Island, Fl, Jan 2009.
• O. Lankoande, M.M. Hayat, and B. Santhanam" A Markov Random Field Based Filter for Speckle Reduction in Ultrasound Imagery, " Proc. of SPIE Symposium on Medical Imaging, Vol. 7265, 2009.
• Q. Wang, M.M. Hayat, B. Santhanam, T. Atwood" SAR Vibrometry Using Fractional Fourier Transform Processing, " Proc. of SPIE, Defence, Security, and Sensing Symposium, Vol. 7308, April 2009.
• Balu Santhanam, " On a Sturm-Liouville Framework for Continuous and Discrete Frequency Modulation, " Proc. of ACSSC 2009, Invited paper, pp. 1747-1751, Pacific Grove, CA, Nov. 2009. [PDF]
• Qi Wang; Matthew Pepin; Balu Santhanam; Tom Atwood; Majeed M. Hayat," SAR-based vibration retrieval using the fractional Fourier transform in slow time," Proc. SPIE, Vol. 7669, DOI: 10.1117/12.849671, April 2010.
• Balu Santhanam and Majeed Hayat, " On a Subspace Framework for Discrete Fractional Fourier Transform Based Chirp Parameter Estimation, " Proc. of DSP/SPE Workshop, pp. 360-363, Sedona, AZ, Jan 2011. [PDF]
• Qi Wang, Balu Santhanam, Matthew Pepin, and Majeed M. Hayat," SAR vibrometry using the pseudo-subspace approach based on the discrete fractional Fourier transform," Proc. SPIE, Vol. 8021, 80210U (2011); http://dx.doi.org/10.1117/12.884011, April 2011.
• Daniel J. Peacock and Balu Santhanam, " Multicomponent Subspace Chirp Parameter Estimation Using Discrete Fractional Fourier Analysis, " Proc. of IASTED Conference on SIP-2011, pp. 326-333, Dec., 2011. [PDF]
• Daniel J. Peacock and Balu Santhanam, " Comparison of Centered Discrete Fractional Fourier Transform Basis For Chirp Parameter Estimation," Submitted to IEEE Statistical Signal Processing Workshop, 2012.
• Q. Wang,M. Pepin, T. Atwood, A. W. Doerry, B. Santhanam, W. Gerstle, and M. M. Hayat," Reduction of Vibration Induced Artifacts in Synthetic-Aperture-Radar Imagery Using the Fractional Fourier Transform," To Appear, Proc. ICIP 2012.
• Q. Wang, B. Santhanam, M. Pepin, M. M. Hayat, and T. Atwoord, " Refocusing vibrating targets in SAR images," Proc. SPIE 8361, 836106, 2012.