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

1996-1999

• Balu Santhanam and J. H. McClellan, "Discrete Rotational Fourier Transform, "IEEE Transactions on Signal Processing, Vol. 44, No. 4, pp. 994 - 997, 1996.   [ Download ]
• 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.   [ Download ]
• 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.   [ Download ]

2000-2009

• 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.   [ Download ]
• 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.   [ Download ]
• 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.   [ Download ]
• 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.   [ Download ]
• 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.   [ Download ]
• 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.   [ Download ]
• 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.   [ Download ]
• 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.   [ Download ]
• 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

2010 Onwards

• Balu Santhanam, " Orthogonal Modes of Frequency Modulation and the Sturm-Liouville Frequency Modulation Model," IEEE Transactions on Signal Processing, Vol. 60, No. 7, pp. 3486-3495, July 2012.   [ Download ]
• 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," IEEE Transactions on Geoscience and Remote Sensing, Vol. 50, No. 10, pp. 4145-4156, Oct., 2012.   [ Download ]
• Q.Wang, M.Pepin, A.Wright, R.Dunkel, T.Atwood, B.Santhanam, W.Gerstle, A.W.Doerry, and M.Hayat, " Reduction of Vibration-Induced Artifacts in Synthetic Aperture Radar Imagery, " IEEE Transactions on Geoscience and Remote Sensing, Vol. 52, No. 6, pp. 3063-3073, 2014.   [ Download ]
• Wenjing Liu and Balu Santhanam, ``Wideband Image Demodulation Via Bi-dimensional Multirate Frequency Transformations," Journal of the Optical Society of America A, Vol. 33, No. 9, pp. 1668 - 1678, Sep. 2016. [Download]
• Francisco Perez, Balu Santhanam, Ralf Dunkel, and Majeed M. Hayat, ``Clutter Suppression Via Hankel Rank Reduction for DFrFT-based Vibrometry Applied to SAR,'' IEEE Geoscience and Remote Sensing Letters, Vol. 14, No. 11, pp. 2052 - 2056, Nov. 2017.[Download]
• J. B. Campbell, F. Perez, Qi Wang, B. Santhanam, R. Dunkel, A. W. Doerry, T. Atwood, M. Hayat, ``Remote Vibration Estimation Using Displaced Phase Center Antenna SAR for Strong Clutter Environments,'' IEEE Transactions on Geoscience and Remote Sensing, Vol. 56, No. 5, pp. 2735-2747, May. 2018. [Download]
• Wenjing Liu and B. Santhanam, ``Wideband Partial Response CPM Demodulation Via Multirate Frequency Transformations and Decision Feedback Equalization,'' Eurasip Journal on Wireless Communications and Networking, 2018. [Download]

1994 - 1999

• 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.   
• 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.   [ Download ]
• Petros Maragos, A. Potamianos and B. Santhanam, Instantaneous Energy Operators: Applications to Speech Processing and Communications, Proceedings of NSIP-95.   [ Download ]
• 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.   [ Download ]
• 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.   [ Download ]

2000-2005

• 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.   [ Download ]
• Balu Santhanam, "Component Enumeration of Multicomponent AM--FM Signals Via Generalized Energy Operators," Proc. ICASSP-02, Vol.2, pp. 1437 - 1440, May 2002.
  [ Download ]
• 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.
  [ Download ]
• 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.   [ Download ]
• 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.   
• 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.    [ Download ]
• 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.   [ Download ]
• 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.
  [ Download ]
• 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.   [ Download ]
• 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
• 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

2006-2009

• 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.   [ Download ]
• 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.   [ Download ]
• David Boutte and Balu Santhanam, " ISI Effects in a ICA-SVM Hybrid Modulation Recognition Algorithm," Proc. of ACSSC 2008, Pacific Grove, CA, Oct. 2008.   [ Download ]
• 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.   [ Download ]
• 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.   [ Download ]
• 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.   [ Download ]

2010 Onwards

• 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.   [ Download ]
• 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.   [ Download ]
• 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," Proc. ICIP 2012, pp. 2677-2680, 2012.   [ Download ]
• Q. Wang, B. Santhanam, M. Pepin, M. Hayat," Performance Analysis on Synthetic Aperture Radar-based Vibration Estimation in Clutter," Proc. Asilomar 2012, pp. 217-221, 2012.   [ Download ]
• Q. Wang, B. Santhanam, M. Pepin, M. M. Hayat, and T. Atwood, " Refocusing vibrating targets in SAR ../Images," Proc. SPIE 8361, 836106, 2012
• O. Agcaoglu, B. Santhanam, and M. Hayat, " Improved Spectrograms Using the Discrete Fractional Fourier Transforms," Proc. of IEEE DSP/SPED Workshop, Aug., 2013.
  [ Download ]
• D. J. Peacock and B. Santhanam, " Comparison of Centered Discrete Fractional Fourier Transforms for Chirp Parameter Estimation," Proc. of IEEE DSP/SPED Workshop, Aug., 2013.   [ Download ]
• Balu Santhanam, " On a Matrix Framework for the Teager-Kaiser Energy Operator," Proc. of IEEE DSP/SPED Workshop, Aug., 2013.   [ Download ]
• Adibello Jelili, Balu Santhanam, and Majeed Hayat,"Limitations and Capabilities of the Slanted Spectrogram Analysis Tool for SAR-Based Detection of Multiple Vibrating Targets ," Proc. of Asilomar Conference on Signals, Systems, and Computers, pp. 172-176, Pacific Grove, CA, Nov. 2014.   [ Download ]
• Justin B. Campbell, Qi Wang, Jelili Ade-Bello, Humberto Caudana, Nicole B. Trujillo, Ishwor Bhatta, Ralf Dunkel, Thomas Atwood, Armin Doerry, Walter H. Gerstle, Balu Santhanam, Majeed M. Hayat, "SAR-based Vibrometry Using the Fractional Fourier transform," SPIE Defense & Security Symposium, Radar Sensor Technology XIX, Baltimore, MD, Vol. 9461, doi: 10.1117/12.2180660, 2015. [ Download ]
• Wenjing Liu and Balu Santhanam, "Wideband-FM Demodulation For Large Wideband To Narrowband Conversion Factors Via Multirate Frequency Transformations," Proc. of Signal Processing and SP Education Workshop, Snowbird Utah, pp. 97-102, Aug., 2015. [ Download ]
• Ishwor Bhatta and Balu Santhanam, " A Comparative Study Of Commuting Matrix Approaches For The Discrete Fractional Fourier Transform," Proc. of Signal Processing and SP Education Workshop, Snowbird Utah, pp. 103-108, Aug., 2015. [ Download ]
• Jelili Adebello and Balu Santhanam, "Clutter Suppression in Synthetic Aperture Radar Targets Using the DFRFT and Subspace Methods with Rank Reduction," Proc. of Asilomar Conference on Signals, Systems, and Computers, pp.1669 - 1673, Nov. 2015. [ Download ]
• Chris De La Cruz and Balu Santhanam, ``A Joint EMD and TEAGER-KAISER Energy Approach Towards Normal AND Nasal Speech Analysis,'' Proc. of Asilomar Conference on Signals, Systems, Computers, Nov. 2016. [ Download ]
• Wenjing Liu and Balu Santhanam, ``Wideband Fingerprint Demodulation Via Bi-dimensional Multirate Frequency Transformations,'' Proc. of Asilomar Conference on Signals, Systems, Computers, Nov. 2016. [ Download ]
• Balu Santhanam, Thalanayar Santhanam, and Satish Mandal, ``On the Effects of Windowing on the Discretization of the fractional Fourier Transform,'' Proc. of Asilomar Conference on Signals, Systems, and Computers, pp. 233 - 237, Nov. 2017 [Download]
• Wenjing Liu and Balu Santhanam, ``Large Deviation First Formant Demodulation Via Empirical Mode Decomposition And Multirate Frequency Transformations," Proc. of Asilomar Conference on Signals, Systems, and Computers, pp. 823-827, Nov. 2018 [Download]
• Satish Mandal and Balu Santhanam, ``On Improved Accuracy Chirp Parameter Estimation Using The DFRFT With Application To SAR-Based Vibrometry ," Proc. of Asilomar Conference on Signals, Systems, and Computers, pp. 1098-1102, Nov. 2018 [Download]
• Francisco Pérez; Balu Santhanam; Thomas Atwood; Ralf Dunkel; Armin W. Doerry; Majeed M. Hayat, "Detection of Vibrating Objects in SAR Images," Proceedings of the SPIE, Radar Sensor Technology XX111, 110030P, May 2019. [Download]
• F. Pérez, B. Santhanam, B. Shrestha, W. Gerstle and M. M. Hayat, "Fractional spectrogram for characterizing and classifying vibrating objects in SAR images," 2019 53rd Asilomar Conference on Signals, Systems, and Computers, Pacific Grove, CA, USA, 2019, pp. 153-157, doi: 10.1109/IEEECONF44664.2019.9048937. [Download]
• Eric Hamke, Amir Nafchi, Manel Martinez-Ramon, Ramiro Jordan, and Balu Santhanam, ``Fundamental Frequency Tracking in Noisy Environments Using Deep Learning," Proceedings of 2021 Asilomar Conference on Signals, Systems, and Computers, Nov., 2021. [Download]

• Balu Santhanam, "Non Stationary Signal Analysis, Energy Demodulation and the Multicomponent AM--FM Signal Model," EECE-TR-2001-01.    [ Download ]
• 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.    [ Download ]
• Balu Santhanam and Juan G. Vargas Rubio, " On the Grunbaum Commutor Based Discrete Fractional Fourier Transform, " ECE-TR-2004-22.    [ Download ]
• Balu Santhanam and T. S. Santhanam, " On Discrete Gauss Hermite Functions and Eigenvectors of the Discrete Fourier Transform, " ECE Technical Report.    [ Download ]

• 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 ARO-MURI REVIEW 2004
• Slides from 2004 DSP WORKSHOP: a. Malay b. Juan