AFIT Faculty Directory

Refereed Journal Publications:

[J01] R. K. Martin, W. A. Sethares, R. C. Williamson, and C. R. Johnson Jr., "Exploiting Sparsity in Adaptive Filters," IEEE Trans. Signal Processing, vol. 50, no. 8, August 2002, pp. 1883-1894.

[J02] R. K. Martin, J. Balakrishnan, W. A. Sethares, and C. R. Johnson Jr., "A Blind, Adaptive TEQ for Multicarrier Systems," IEEE Signal Processing Letters, vol. 9, no. 11, November 2002, pp. 341-343.

[J03] J. Balakrishnan, R. K. Martin, and C. R. Johnson Jr., "Channel Shortening by Sum-squared Auto-correlation Minimization (SAM)," IEEE Trans. Signal Processing, vol. 51, no. 12, December 2003, pp. 3086-3093.

[J04] R. K. Martin, M. Ding, B. L. Evans, and C. R. Johnson Jr., "Efficient Channel Shortening Equalizer Design," EURASIP Journal on Applied Signal Processing, Special Issue on Signal Processing for Broadband Access Systems, vol. 2003, no. 13, December 2003, pp. 1279-1290.

[J05] R. K. Martin, M. Ding, B. L. Evans, and C. R. Johnson Jr., "Infinite Length Results and Design Implications for Time-Domain Equalizers," IEEE Trans. Signal Processing, vol. 52, no. 1, January 2004, pp. 297-301.

[J06] R. K. Martin, J. M. Walsh, and C. R. Johnson, Jr., "Low Complexity MIMO Blind, Adaptive Channel Shortening," IEEE Trans. Signal Processing, vol. 53, no. 4, April 2005, pp. 1324-1334.

[J07] R. K. Martin, K. Vanbleu, M. Ding, G. Ysebaert, M. Milosevic, B. L. Evans, M. Moonen, and C. R. Johnson, Jr., "Unification and Evaluation of Equalization Structures and Design Algorithms for Discrete Multitone Modulation Systems," IEEE Trans. Signal Processing, vol. 53, no. 10, October 2005, pp. 3880-3894.

[J08] R. K. Martin and C. R. Johnson, Jr., "Adaptive Equalization: Transitioning from Single-Carrier to Multicarrier Systems," IEEE Signal Processing Magazine, vol. 22, no. 6, November 2005, pp. 108-122.

[J09] R. K. Martin, K. Vanbleu, M. Ding, G. Ysebaert, M. Milosevic, B. L. Evans, M. Moonen, and C. R. Johnson, Jr., "Implementation Complexity and Communication Performance Tradeoffs in Discrete Multitone Modulation Equalizers," IEEE Trans. Signal Processing, vol. 54, no. 8, August 2006, pp. 3216-3230.

[J10] R. K. Martin, "Joint Blind Adaptive Synchronization and Channel Shortening", IEEE Trans. Signal Processing, vol. 54, no. 11, November 2006, pp. 4194-4203.

[J11] R. K. Martin, "Fast-converging Blind Adaptive Channel Shortening and Frequency-domain Equalization," IEEE Trans. Signal Processing, vol. 55, no. 1, January 2007, pp. 102-110.

[J12] R. K. Martin, G. Ysebaert, and K. Vanbleu, "Bit Error Rate Minimizing Channel Shortening Equalizers for Cyclic Prefixed Systems," IEEE Trans. Signal Processing, vol. 55, no. 6, June 2007, pp. 2605-2616.

[J13] S. C. Gustafson, D. R. Parker, and R. K. Martin, "Cardinal Interpolation," IEEE Trans. Pattern Analysis and Machine Intel., vol. 29, no. 9, Sept. 2007, pp. 1538-1545.

[J14] M. Sambora and R. K. Martin, "Exploiting Correlations in Projection-Based Image Registration," Optical Engineering, vol. 47, no. 7, July 2008, pp. 077005-1 to 077005-12.

[J15]Syed Imtiaz Husain, Jinhong Yuan, Jian Zhang, and R. K. Martin, "Time Domain Equalizer Design Using Bit Error Rate Minimization for UWB Systems," EURASIP Journal on Wireless Communications and Networking, vol. 2009, Article ID 786291, 11 pages, 2009.

[J16]R. K. Martin, J. S. Velotta, and J. F. Raquet, "Bandwidth Efficient Cooperative TDOA Computation for Multicarrier Signals of Opportunity," IEEE Transactions on Signal Processing, vol. 57, no. 6, June 2009, pp. 2311-2322.

[J17]R. K. Martin and M. E. Haker, "Reduction of Peak-to-Average Power Ratio in Transform Domain Communication Systems," IEEE Transactions on Wireless Communications, vol. 8, no. 9, September 2009, pp. 4400-4405.

[J18]R. K. Martin and R. W. Thomas, "Algorithms and Bounds for Estimating Location, Directionality, and Environmental Parameters of Primary Spectrum Users," IEEE Transactions on Wireless Communications, vol. 8, no. 11, November 2009, pp. 5692-5701.

[J19]J. R. McMahon, R. K. Martin, and S. Cain, "3D FLASH LADAR Range Estimation via Blind Deconvolution," The Journal of Applied Remote Sensing, Vol. 4, 043517, Mar 2010, pp. 1-28.

[J20]M. Veth, R. K. Martin, and M. Pachter, "Anti-aliasing Constraints for Image-based Feature Tracking Applications With and Without Inertial Aiding,"IEEE Transactions on Vehicular Technology,vol. 59, no. 8, Oct 2010,pp. 3744-3756.

[J21] R. K. Martin, Chunpeng Yan, H. Howard Fan, and C. Rondeau, "Algorithms and Bounds for DistributedTDOA-Based Positioning Using OFDM Signals," IEEE Transactions on Signal Processing, vol. 59, no. 3, Mar 2011, pp. 1255-1268.

[J22]G. Altin and R. K. Martin, "Bit-Error-Rate-Minimizing Channel Shortening using Post-FEQ Diversity Combining and a Genetic Algorithm," Signal Processing, vol. 91, Apr 2011, pp. 1021-1031.

[J23]J. R. McMahon, R. K. Martin, and S. C. Cain, "Range Separation Performance and Optimal Pulse-Width Prediction of a 3D FLASH LADAR using the Cramer-Rao Bound," Applied Optics, vol. 50, no. 17, Jun 2011, pp. 2559-2571.

[J24]Richard K. Martin, "Using Alpha Shapes to Approximate Signal Strength Based Positioning Performance," IEEE Signal Processing Letters, vol. 18, no. 12, Dec 2011, pp. 741-744.

[J25]Raquel G. Machado, Andrew G. Klein, and Richard K. Martin, "Sparsening Filter Design for Iterative Soft-Input Soft-Output Detectors," accepted for publication in EURASIP Journal on Wireless Communications and Networking, special issue on Algorithm and Implementation Aspects of Channel Codes and Iterative Receivers, Dec 2011, pending minor revisions.Approx. 8 pages.

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Book Chapters:

[B01]R. K. Martin, "Adaptive Equalization for Wireless Channels," chapter 9, pp. 235-267, in Adaptation in Wireless Communications, Volume 1: Adaptive Signal Processing, Mohamed Ibnkahla, ed., CRC Press, Boca Raton, 2009.ISBN: 978-1420045994.

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Conference Publications:

[C01] W. Chung, R. K. Martin, M. Ready, and C. R. Johnson Jr., "Blind Adaptive Equalizer for FSK Systems Based on a Characterization of Multipath on the FSK Signals," Proc. 2000 Conf. on Information Sciences and Systems (CISS), Princeton, NJ, March 2000.

[C02] I. Garrison, R. K. Martin, W. A. Sethares, B. Hart, W. Chung, J. Balakrishnan, R. A. Casas, T. J. Endres, P. Schniter, M. G. Larimore and C. R. Johnson. Jr., "DTV Channel Characterization," Proc. 2001 Conf. on Information Sciences and Systems (CISS), Baltimore, MD, March 2001.

[C03] R. K. Martin, W. A. Sethares, R. C. Williamson, and C. R. Johnson Jr., "Exploiting Sparsity in Adaptive Filters," Proc. 2001 Conf. on Information Sciences and Systems (CISS), Baltimore, MD, March 2001.

[C04] R. K. Martin and C. R. Johnson Jr., "NSLMS: a Proportional Weight Algorithm for Sparse Adaptive Filters," Proc. 35th Asilomar Conf. on Signals, Systems, and Computers, Pacific Grove, CA, vol. 2, pp. 1530-1534, November 2001.

[C05] R. K. Martin and C. R. Johnson Jr., "Blind, Adaptive, Per Tone Equalization for Multicarrier Systems," Proc. 2002 Conf. on Information Sciences and Systems (CISS), Princeton, NJ, March 2002.

[C06] R. K. Martin, J. Balakrishnan, W. A. Sethares, and C. R. Johnson Jr., "Blind, Adaptive Channel Shortening for Multicarrier Receivers," Proc. 36th Asilomar Conf. on Signals, Systems, and Computers, Pacific Grove, CA, November 2002. (Invited paper)

[C07] J. Balakrishnan, R. K. Martin, and C. R. Johnson Jr., "Channel Shortening by Sum-squared Auto-correlation Minimization (SAM)," Proc. 36th Asilomar Conf. on Signals, Systems, and Computers, Pacific Grove, CA, November 2002.

[C08] R. K. Martin and C. R. Johnson Jr., "Efficient Channel Shortening Equalizer Computation," Proc. 2003 Conf. on Information Sciences and Systems (CISS), Baltimore, MD, March 2003.

[C09] R. K. Martin, M. Ding, B. L. Evans, and C. R. Johnson, Jr., "Exploiting Symmetry in Channel Shortening Equalizers," Proc. International Conf. on Acoustics, Speech, and Signal Processing (ICASSP), Hong Kong, April 2003.

[C10] R. K. Martin, C. R. Johnson, Jr., M. Ding, and B. L. Evans, "Infinite Length Results for Channel Shortening Equalizers," Proc. IV IEEE Signal Processing Workshop on Signal Processing Advances in Wireless Communications (SPAWC), Rome, Italy, June 2003.

[C11] C. R. Johnson, Jr., R. K. Martin, J. M. Walsh, A. G. Klein, C. E. Orlicki, and T. Lin, "Blind Channel Shorteners," Proc. 13th IFAC Symposium on System Identification, Rotterdam, The Netherlands, August 2003. (Invited paper)

[C12] M. Ding, B. L. Evans, R. K. Martin, and C. R. Johnson, Jr., "Minimum Intersymbol Interference Methods for Time Domain Equalizer Design," Proc. IEEE Global Comm. Conf., San Francisco, CA, December 2003.

[C13] R. K. Martin and C. R. Johnson, Jr., "Fast Channel Shortening With Polynomial Weighting Functions," Proc. 2004 Conf. on Information Sciences and Systems (CISS), Princeton, NJ, March 2004.

[C14] R. K. Martin, J. M. Walsh, and C. R. Johnson, Jr., "Low Complexity MIMO Blind Adaptive Channel Shortening," Proc. International Conf. on Acoustics, Speech, and Signal Processing (ICASSP), Montreal, May 2004.

[C15] J. M. Walsh, R. K. Martin, A. G. Klein, N. S. Xenias, J. A. Pagnotta, and C. R. Johnson, Jr., "Necessary and Sufficient Conditions for Perfect Channel Shortening and Implications for Interference Mitigation," Proc. V IEEE Signal Processing Workshop on Signal Processing Advances in Wireless Communications (SPAWC), Lisbon, Portugal, July 2004.

[C16] R. K. Martin and C. R. Johnson, Jr., "Joint Blind Adaptive Synchronization and Channel Shortening," Proc. 38th Asilomar Conf. on Signals, Systems, and Computers, Pacific Grove, CA, November 2004. (Invited paper)

[C17] R. K. Martin, "Unit Tap Constrained Adaptive Channel Shortening Equalization," Proc. 39th Asilomar Conf. on Signals, Systems, and Computers, Pacific Grove, CA, November 2005.

[C18] R. K. Martin, K. Vanbleu, G. Ysebaert, and A. G. Klein, "Bit Error Rate Minimizing Channel Shortening Equalizers for Multicarrier Systems," Proc. VII IEEE Signal Processing Workshop on Signal Processing Advances in Wireless Communications (SPAWC), Cannes, France, July 2006.

[C19] J. M. Walsh, R. K. Martin, and C. R. Johnson, Jr., "Convergence and Performance Issues for Autocorrelation Based Adaptive Channel Shorteners," Proc. 40th Asilomar Conf. on Signals, Systems, and Computers, Pacific Grove, CA, November 2006. (Invited paper)

[C20] R. K. Martin, "Proportionate Adaptation and Partial Updates in Constrained Adaptive Filters," Proc. 40th Asilomar Conf. on Signals, Systems, and Computers, Pacific Grove, CA, November 2006. (Invited paper)

[C21] R. K. Martin, K. Vanbleu, and G. Ysebaert, "Bit Error Rate Minimizing Channel Shortening Equalizers for Single Carrier Cyclic Prefixed Systems," Proc. International Conf. on Acoustics, Speech, and Signal Processing (ICASSP), Honolulu, Hawaii, April 2007.

[C22] R. K. Martin and F. E. Kragh, "Analysis Of Pseudo-Random Timing For Low Observable Communication Signals," Proc. VIII IEEE Signal Processing Workshop on Signal Processing Advances in Wireless Communications (SPAWC), Helsinki, Finland, June 2007.

[C23] M. Haker, R. K. Martin, and V. Chakravarthy, “Comparison of Hardware Implementation of Transform Domain Communications to Theoretical Results,” Proc. Military Communications Conference (MILCOM), Orlando, FL, October 2007.

[C24] R. K. Martin, J. S. Velotta, and J. F. Raquet, "Multicarrier Modulation as a Navigation Signal of Opportunity," Proc. IEEE Aerospace Conference, Big Sky, MT, March 2008.

[C25] M. Sambora, R. K. Martin, and S. C. Cain, "Improving the Performance of Projection-Based Image Registration," Proc. IEEE Aerospace Conference, Big Sky, MT, March 2008.

[C26]J. F. Raquet and R. K. Martin, "Non-GNSS Radio Frequency Navigation," in Proc. Int’l. Conf. on Acoustics, Speech, and Signal Processing (ICASSP), Las Vegas, NV, April 2008, pp. 5308-5311.

[C27] J. D. Townsend, M. A. Saville, S. M. Hong, and R. K. Martin, "Simulator for Velocity Gate Pull-Off Electronic Countermeasure Techniques," in Proc. 2008 IEEE Radar Conference, Rome, Italy, May 2008.

[C28] J. D. Townsend, M. A. Saville, S. M. Hong, R. K. Martin, C. Simpson, and O. Mayhew, "Waveform Optimization for Electronic Countermeasure Technique Generation," in Proc. 2008 IEEE Radar Conference, Rome, Italy, May 2008.

[C29] S. Ozer, M. A. Saville, P. J. Collins, A. J. Terzuoli, and R. K. Martin, "Modeling of a Strike Formation with Coherent Self-Protection Jammers," in Proc. 2008 IEEE Radar Conference, Rome, Italy, May 2008.

[C30] C. Schexnayder, J. Raquet, and R. K. Martin, "Effects of Oversampling and Multipath on Navigation Using OFDM Signals of Opportunity," Proc. ION GNSS 2008, Savanna, GA, September 2008, 12 pages.

[C31] J. Crosby, R. K. Martin, and J. Raquet, "Fusion of Inertial Sensors and Signals of Opportunity for Unassisted Navigation," Proc. NAV08 / ILA37: The Navigation Conference & Exhibition, Westminster, London, Oct. 2008, 7 pages.

[C32] G. Altin and R. K. Martin, "Adaptive MIMO Channel Shortening with Post-FEQ diversity combining," in Proc. 42nd Asilomar Conf. on Signals, Systems, and Computers, (invited session on adaptive systems, chaired by R. K. Martin), Pacific Grove, CA, November 2008, 5 pages.

[C33] J. R. McMahon, S. C. Cain, and R. K. Martin, "Improving 3-D LADAR Range Estimation via Image Deblurring," in Proc. IEEE Aerospace Conference, Big Sky, MT, March 2009, 9 pages.

[C34] R. K. Martin, C. Yan, and H. H. Fan, "Bounds on Decentralized TDOA-Based Localization of OFDM Sources," in Proc. Int. Conf. on Acoustics, Speech, and Signal Proc. (ICASSP), Taipei, Taiwan, April 2009, 4 pages.

[C35] C. Yan, H. H. Fan, and R. K. Martin, "Robust NLOS Multipath Mitigation for TOA Estimation," in Proc. Int. Conf. on Acoustics, Speech, and Signal Proc. (ICASSP), Taipei, Taiwan, April 2009, 4 pages.

[C36] A. Honoré, R. Thomas, R. K. Martin, and S. Kurkowski, "Implementation of Collaborative RF Localization Using a Software-Defined Radio Network," in Proc. Military Comm. Conf. (MILCOM), Boston, MA, October 2009.

[C37] R. K. Martin, "Wireless Network Discovery Via RSS-based Estimation of Multi-transmitter RF Footprint," in Proc. The Third International Workshop on Computational Advances in Multi-Sensor Adaptive Processing (CAMSAP), Aruba, Dutch Antilles, December 2009.

[C38] M. A. Saville, K. Monroe, C. Allen, and R. K. Martin, "Processing-based Tuner Gain Correction in a Wideband Multi-channel Receiver," in Proc. IEEE RADAR Conf., Washington, D.C., May 2010.

[C39]A. W. Yarbrough, M. J. Mendenhall, and R. K. Martin, "The Effect of Atmospheric Mis-Estimation on Hyperspectral-Based Adaptive Matched Filter Target Detection as Measured by the Bhattacharya Coefficient," in Proc. IEEE Workshop on Hyperspectral Image and Signal Processing (WHISPERS), Reykjavik, Iceland, June 2010.

[C40] M. Song, M. Silvius, R. Thomas, and R. K. Martin, "Firmware Defined Radio: Available Technologies and their Performance Tradeoffs," in Proc. of SDR Forum 2010, October 2010, 6 pages.

[C41] T. J. Hardy, R. K. Martin, and R. W. Thomas, "Malicious Node Detection via Physical Layer Data," Proc. 44th Asilomar Conf. on Signals, Systems, and Computers, Pacific Grove, CA, November 2010, 5 pages.

[C42]Paul Harmer, Ryan Thomas, Brady Christel, Richard Martin, and Cliff Watson, "Wireless Security Situation Awareness with Attack Identification Decision Support," in Proc. the 2011 IEEE Symposium on Computational Intelligence in Cyber Security, Paris, France, Apr 2011, 7 pages.

[C43]R. K. Martin, A. King, R. W. Thomas, and J. Pennington, "Practical Limits in RSS-Based Positioning," in Proc. Int’l. Conf. on Acoustics, Speech, and Signal Processing (ICASSP), Prague, Czech Republic, May 2011, 4 pages.

[C44]R. K. Martin, R. W. Thomas, and Z. Wu, "Using Spectral Correlation for Non-Cooperative RSS-Based Positioning," in Proc. The IEEE Workshop on Statistical Signal Processing (SSP), Nice, France, June 2011, 4 pages.

[C45]D. F. Chick, P. J. Collins, S. A. Goodman, R. K. Martin, and A. J. Terzuoli, Jr., "Direction Finding With Mutually Orthogonal Antennas,"in Proc. 2011 IEEE AP-S International Symposium on Antennas and Propagation and 2011 USNC/URSI National Radio Science Meeting, Spokane, Washington, July 2011, 4 pages.

[C46]J. W. Motes, R. K. Martin, and K. A. Mathews, "LADAR Range Image Interpolation Exploiting Pulse Width Expansion," SPIE Optics+Photonics, the Applications of Digital Image Processing XXXIV, San Diego, CA, Aug 2011.

[C47]B. J. Neff, S. C. Cain, and R. K. Martin, "Discrimination of multiple ranges per pixel in 3D FLASH LADAR while minimizing the effects of diffraction," SPIE Optics + Photonics, Unconventional Imaging and Wavefront Sensing VII, San Diego, CA, Aug 2011.

[C48]A. Scott, T. J. Hardy, R. K. Martin, and R. W. Thomas, "What are the Roles of Electronic and Cyber Warfare in Cognitive Radio Security?"Proc. 54th IEEE Midwest Symposium on Circuits and Systems, (invited session on cybersecurity for cognitive communications), Seoul, Korea, August 2011, 4 pages.

[C49]Richard K. Martin, Christopher Anderson, Ryan W. Thomas, and Amanda Sue King, "Modelling and Analysis of Radio Tomography," in Proc. The Fourth International Workshop on Computational Advances in Multi-Sensor Adaptive Processing (CAMSAP), San Juan, Puerto Rico, December 2011, pp. 161-164.

[C50]Amanda Sue King and Richard K. Martin, “The Benefits of Game Use in a Signal Processing Graduate Class,” to appear in Proc. Int’l. Conf. on Acoustics, Speech, and Signal Processing (ICASSP), Kyoto, Japan, Mar 2012.

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Patents:

[P01] R. K. Martin, R. C. Williamson, and W. A. Sethares, “Apparatus and method for using adaptive algorithms to exploit sparsity in target weight vectors in an adaptive channel equalizer,” United States Patent #7,061,977, granted on June 13, 2006.

[P02] J. Balakrishnan, W. A. Sethares, W. Chung, R. K. Martin, and C. R. Johnson, Jr., "Method and Apparatus for Timing Recovery based on Dispersion Characterization and Components Therefor," United States Patent #7,106,818, granted on September 12, 2006.

[P03] R. K. Martin, J. Balakrishnan, W. A. Sethares, W. Chung, and C. R. Johnson, Jr., “Methods and system for equalizing data in multicarrier receiver systems,” United States Patent #7,230,984, granted on June 12, 2007.

[P04] J. Balakrishnan, R. K. Martin and C. R. Johnson, Jr., "Methods and system for equalizing data," United States Patent #7,305,028, granted on December 4, 2007.

[P05] R. K. Martin, Jamie S. Velotta, and John F. Raquet, "Multicarrier Modulation Navigation with a Signal of Opportunity," United States Patent #8,072,383, patent application serial no. 12/471,525, issued on 06 Dec 2011.

----------------------------- Last updated23 December 2011.