Key employees of SPI have more than 10 years of experiences in some specialized areas such as software architecture design, hardware implementation, and algorithm development. It is not possible to enumerate all the publications of our staff and consultants. Here we list some representative papers written by Dr. Kwan and his collaborators over the past 15 years. Dr. Kwan was fortunate to have the opportunities to work with many talented collaborators at Superconducting Super Collider Lab., Automation and Robotics Research Institute, Intelligent Automation, Inc., and many universities. The papers listed below are the joint work of Dr. Kwan and his collaborators. The areas can be divided into the following categories:

· Applications of Game Theory: Path and mission planning, threat prediction, etc.

· Array Processing: Linear and circular microphone arrays, antenna array, beamforming, DOA estimation, etc.

· Automatic Control: Robots, motors, aircraft, missile, machine tools, submarine, spacecraft, power system, etc.

· Automatic Target Recognition: Mine detection, mammogram inspection, etc.

· Chemical Agent Classification: Toxic vapor classification, chemical agent classification, etc.

· Communications: Noncoherent receiver design, network traffic prediction, flow control, etc.

· Fault Diagnostics/Prognostics: Actuators, pumps, motors, etc.

· General Signal Processing Applications: Traffic incident prediction, fire detection, etc.

· Health Monitoring of Electromechanical Systems: Pumps, motors, etc.

· Image Processing

· Image/Video Compression

· Nondestructive Inspection: Aircraft wing, tank shoes, composite structures, etc.

· Sensor Validation: Simultaneous sensor and process fault diagnostics, etc.

· Speech Processing: Speech enhancement, speaker adaptation, speech separation, etc.

· Target Tracking

Application of Game Theory

1. G. Chen, C. Kwan, D. Shen, J.B. Cruz, Jr., and A. Vannevel, “Adaptive Cooperative Path Planning for Multiple Platforms,” IEEE ROBIO 2005.

2. D. Li, J. B. Cruz, Jr., G. Chen, C. Kwan, and H. Chang, “A Hierarchical Approach To Multi-Player Pursuit-Evasion Differential Games,” Conference on Decision and Control, 2005.

3. D. Shen, J. Cruz, G. Chen, and C. Kwan, “A Game Theoretic Approach to Mission Planning for Multiple Aerial Platforms,” AIAA Infotech@Aerospace, September 26-29, Arlington, VA., 2005.

4. G. Chen, D. Shen, J. B. Cruz, and C. Kwan, “A novel cooperative path planning for multiple aerospace vehicles,” AIAA infotech@aerospace, Sept. 26-29, 2005, Arlington, VA.

5. D. Shen, G. Chen, J. B. Cruz, Jr., C. Kwan, S. Cox, and S. P. Riddle, “A game theoretic approach to threat intent inference,” Conf. Modeling and Simulation, C2 Analysis, C2 Architecture, 2006.

6. G. Chen, D. Shen, C. Kwan, J. B. Cruz, Jr., M. Kruger, “Game Theoretic Approach to Threat Prediction and Situation Awareness,” SPIE, 2006.

Array Processing

1. Y. Li, K. C. Ho, and C. Kwan, “3-D Array Pattern Synthesis with Frequency Invariant Property for Concentric Ring Array,” IEEE Trans. Signal Processing, 2006

2. C. Kwan, K. Ho, G. Mei, Y. Li, Z. Ren, R. Xu, Y. Zhang, D. Lao, M. Stevenson, V. Stanford, and C. Rochet, “An Automated Acoustic System to Monitor and Classify Birds,” Applied Signal Processing, October 2005.

3. Y. Li, K. C. Ho, C. Kwan, Daniel P. K. Lun and Y. H. Leung, "A study of partially adaptive concentric ring array," IEEE Trans. Circuits Syst. II, revised in September 2005.

4. C. Kwan, H. Xu, L. Haynes, J. Yalowitz, and G. Romanowski, “Intelligent Interference Cancellation in Phased Arrays,” Automatic Control Symposium, pp. 716-721, 1997.

5. Y. Li, K.C. Ho, and C. Kwan, “Design of Broad-band Circular Ring Microphone Array for Speech Acquisition in 3-D,” Int. Conf. on Acoustics, Speech, and Signal Processing, 2003.

6. C. Kwan, K. Ho, G. Mei, Y. Li, Z. Ren, G. Zhao, M. Stevenson, R. Xu, V. Stanford, and C. Rochet, “An Automated Acoustic System to Monitor and Classify Birds,” BirdStrike 2003.

7. Y. Li, K. C. Ho and C. Kwan, “Beampattern synthesis for concentric circular ring array using MMSE design,” IEEE Int. Symp. Circuits and Systems (ISCAS-04), Vancouver, May 23-26, 2004.

8. Y. Li, K. C. Ho and C. Kwan, “A novel partial adaptive algorithm for broadband beamforming using concentric circular array,” IEEE Int. Conf. on Acoustics, Speech and Signal Processing, Montreal, May 17-21, 2004.

9. C. Kwan, G. Mei, X. Zhao, Z. Ren, R. Xu, V. Stanford, C. Rochet, and J. Aube, and K.C. Ho, “Bird classification algorithms: Theory and Experimental Results,” ICASSP 2004.

10. Y. Li, K. C. Ho, C. Kwan and Y. H. Leung, "Generalized partially adaptive concentric ring array," Proc. IEEE Int Symp. Circuits Syst. ISCAS05, Kobe, Japan, May 2005.

11. L. M. Vicente, K.C. Ho, C. Kwan, “An Improved Partial Adaptive Narrow-Band Beamformer Using Concentric Ring Array,” ICASSP 2006.

Automatic Control

Aircraft/spacecraft/missile/submarine control

1. C. Kwan, H. Xu, F. L. Lewis, “Robust Spacecraft Attitude Control Using Adaptive Fuzzy Logic,” International Journal of Systems Science, Vol. 31, no. 10, pp. 1217-1225, 2000.

2. X. Zhang, R. Xu, C. Kwan, M. Pritchard, L. Haynes, M. Polycarpou and Y. Yang, “Fault Tolerant Formation Flight Control of UAVs,” Int. J of Vehicle Autonomous Systems, Vol. 2, Nos. 3/4, pp.217-235, 2004.

3. C. Kwan, R. Xu, W. Liu, R. Tan, and L. Haynes, “Nonlinear Control of Missile Dynamics,” Conference on Decision and Control, pp.4685-4691, 1998.

4. C. Lin, H. Xu, C. Kwan, and L. Haynes, “Submarine pitch and depth control using Fuzzy CMAC neural network,” Proc. American Control Conference, pp. 379-384, 1998.

5. M. M. Polycarpou, X. Zhang, R. Xu, Y. Yang, C. Kwan, “A Neural Network Based Approach to Adaptive Fault Tolerant Flight Control,” Int. Symposium on Intelligent Control, 2004.

Motor control

1. C. Kwan, F. L. Lewis, and K. S. Yeung, “Robust Adaptive Control of Induction Motors Without Flux Measurements,” Automatica, June, vol. 32, no. 6, pp. 903-908, 1996.

2. C. Kwan, “Robust Adaptive Control of Induction Motors,” Int. Journal of Control, Vol. 67, no. 4, pp. 539-552, 1997.

3. C. Kwan and F. L. Lewis, “Robust Backstepping Control of Induction Motors Using Neural Networks,” IEEE Trans. Neural Networks, vol. 11, no. 5, pp. 1178-1187, 2000.

4. Kuljaca, N. Swamy, F. L. Lewis, C. Kwan, “Design and Implementation of Industrial Neural Network Controller Using Backstepping,” IEEE Transactions on Industrial Electronics, pp. 193 – 201, vol. 50, no. 1, 2003.

5. C. Kwan, “Robust Control of Induction Motors,” Proc. IEEE Conf. on Decision and Control, pp. 1107-1111, 1994.

6. C. Kwan, F. L. Lewis, and K. S. Yeung, “Robust Adaptive Control of Induction Motors Without Flux Measurements,” Proc. American Control Conference, pp. 3515-2519, 1995.

7. C. Kwan and F. L. Lewis, “Robust Control of Induction Motors Using Neural Networks,” Proc. IEEE Mediterranean Control Conference, 1995.

Machine tool/piezo-actuator/power system control

1. G. Pan, H. Xu, C. Kwan, C. Liang, L.S. Haynes, and Z. Geng, “Modeling and Intelligent Chatter Control Strategies for a Lathe Machine,” Control Engineering Practice, Vol. 4, No. 12, pp. 1647-1658, 1996.

2. K. Liu, S. Subbarayan, R. Shoults, M. Manry, C. Kwan, F. Lewis, and J. Naccarino, “Comparison of Short-Term Load Forecasting Techniques,” IEEE Trans. Power systems, 11(2): 877-882, 1996.

3. J. Dohner, J. Lauffer, T. Hinnerichs, N. Shankar, M. Regelbrugge, C. Kwan, R. Xu, B. Winterbauer, and K. Bridger, “Mitigation of Chatter Instabilities in Milling by Active Structural Control,” J. of Sound and Vibration, 2003.

4. J. Dohner, C. Kwan, and M. Ruggelbrugge, “Active Chatter Suppression in An Octahedral Hexapod Milling Machine: A Design Study,” SPIE Smart materials & Structure Conference, vol. 2721, February, 1996.

5. C. Kwan, H. Xu, and L. Haynes, “Summary of Chatter Control Strategies in Octahedral Hexapod Machine,” Automatic Control Symposium, pp.502-504, 1997.

6. C. Kwan, H. Xu, C. Lin, and L. Haynes, “H-infinity Control of Chatter in Octahedral Hexapod Machine,” American Control Conference, 1997.

7. J. L. Dohner, T. D. Hinnerichs, J. Lauffer, C. Kwan, M. E. Regelbrugge, and N. Shankar, “Active Chatter Control in a Milling Machine,” SPIE Smart Materials Conference, vol. 3044, San Diego, March, 1997.

8. J. Lauffer, M. Regelbrugge, C. Kwan, Y. Lin, J. Dohner, and T. Hinnerichs, “A Smart Spindle Unit for Active Chatter Suppression of a Milling Machine Part II: Dynamics and Control,” SPIE Smart Materials Conference, vol. 3326, San Diego, March, 1998.

9. C. Kwan, R. Xu, J. Lang, Y. Lin, M. Stevenson, Z. Ren, and L. Haynes, “Intelligent High Speed Control of Piezoelectric Actuators For Precision Manufacturing,” Intelligent Systems in Design and Manufacturing II, Proc. SPIE (vol. 3833), Boston, 1999.

10. J. Dohner, J. P. Lauffer, T.D. Hinnerichs, N. Shankar, M. Regelbrugge, C. Kwan, R. Xu, B. Winterbauer, and K. Bridger, “On the use of active structural control to enhance the cutting performance of a milling machine,” Proc. SPIE Smart Structures and Materials Symposium 2002, Vol. 4698, A. McGowan, ed.

11. M. E. Regelbrugge, J. P. Lauffer , J. L. Dohner, C. Kwan , and N. Shankar, “A Demonstration of Active Suppression of Milling-Tool Chatter,” Adaptive Structures Forum of the AIAA Structures, Structural Dynamics and Materials Conference, Denver, April, 2002.

Particle accelerator control

1. L. K. Mestha, C. Kwan and K. S. Yeung, “Instabilities in Beam Control Feedback Loops in Proton Synchrotrons," Particle Accelerators, Vol. 42, No. 1, pp.1-43, 1993.

2. L. K. Mestha, C. Kwan and K. S. Yeung, “Fixed-Structure Suboptimal Feedback Control for Particle Accelerators,” Particle Accelerators, Vol. 47, no. 2, 1994.

3. L. K. Mestha, C. Kwan and K. S. Yeung, “Interactions of Beam Control Loops With High Q Local RF Loops Under Heavy Beam Loading,” Particle Accelerators, Vol. 47, no.1, 1994.

4. L. K. Mestha, C. Kwan and R. Webber, “A General Control Model for Designing Global RF Feedback Loops,” Proceedings of the Third European Particle Accelerator Conference, Berlin, March 24-28, 1992.

5. L. K. Mestha, C. Kwan, J. Mangino and K. S. Yeung, “A Time Domain Control Algorithm for Global RF Feedback Loops,” Proceedings of the Third European Particle Accelerator Conference, Berlin, March 24-28, 1992.

6. L.K. Mestha, C. Kwan and K. S. Yeung, “General Time-Varying State-Space Control Model and its Application for Transient Beam Loading Compensation,” Proc. Sixth IEEE Particle Accelerator Conference, pp.2385-2387, 1993.

Population control

1. C. Kwan, “Frequency-Domain Approach to Population Control,” Proc. IEEE First Conference on Control Applications, pp. 479-483, 1992.

2. C. Kwan, “Some New Results in Population Control,” Proc. IEEE Conf. on Decision and Control, pp. 4110-4111, 1994.

Robot control

1. C. Kwan and K. S. Yeung, “Robust Adaptive Control of Revolute Flexible-Joint Manipulators Using Sliding Techniques,” Systems and Control Letters, Vol. 20, No. 4, pp. 279-288, 1993.

2. C. Kwan, “Hybrid Force/Position Control for Manipulators With Motor Dynamics Using a Sliding-Adaptive Approach,” IEEE Trans. Autom. Control, Vol. 40, no. 5, 1995.

3. C. Kwan, “Robust Adaptive Force/Motion Control of Constrained Robots,” IEE Proceedings Pt. D, Vol. 143, No. 1, pp. 103-109, 1996.

4. C. Kwan and Y. H. Kim, “Multimanipulator Control of Robots Using Neural Networks,” Journal of Intelligent Control and Systems, December, 1996.

5. C. Kwan, F. L. Lewis, and D. M. Dawson, “Robust Neural Network Control of Rigid-link Electrically-Driven Robots,” IEEE Trans. Neural Networks, pp. 581-588, July, 1998.

6. C. Kwan, A. Yesildirek, and F. L. Lewis, “Robust Force/Motion Control of Constrained Robots Using Neural Networks,” Journal of Robotic Systems, pp. 697-714, vol. 16, no. 12, 1999.

7. C. Kwan, F. L. Lewis, and Y. H. Kim, “Robust Neural Network Control of Flexible-Joint Robots,” Asian Journal of Control, pp. 188-197, vol. 1, no.3, September, 1999.

8. C. Kwan, D. M. Dawson, and F. L. Lewis, “Robust Adaptive Control of Robots Using Neural Network: Global Stability,” Asian Journal of Control, vol. 3, no.2, pp. 111-121, June 2001.

9. C. Kwan and K. S. Yeung, “Sliding-Adaptive Control of Revolute Flexible-Joint Manipulators Without Chattering,” Proc. First International Intelligent Control and Automation Conference, Aug. 1993.

10. C. Kwan, A. Yesildirek, and F. L. Lewis, “Robust Force/Motion Control of Constrained Robots Using Neural Networks,” Proc. IEEE Conference on Decision and Control, pp. 1862- 1867, 1994.

11. C. Kwan and J. K. Chang, “Robust Adaptive Control of Robot Manipulators With Actuator Dynamics,” Proc. International Workshop on New Directions of Control and Manufacturing, November, 1994.

12. C. Kwan, A. Yesildirek, and F. L. Lewis, “Robust Force/Motion Control of Flexible-Joint Robots Using Neural Networks,” Proc. American Control Conference, pp. 4460-4464, 1995.

13. C. Kwan, “Robust Hybrid Force/Position Control for Manipulators With Motor Dynamics,” Proc. American Control Conference, pp. 365-369, 1995.

14. C. Kwan and F. L. Lewis, “Robust Control of Rigid Link Electrically Driven Robots Using Neural Network,” Proc. International Symposium on Intelligent Control, 1995.

15. C. Kwan and F. L. Lewis, “Robust Backstepping Control of Flexible-Joint Robots Using Neural Network,” Proc. Conference on Decision and Control, 1995.

16. C. Kwan, D. M. Dawson, and F. L. Lewis, “Neural Network Based DCAL Controller for Robot Tracking,” Proc. Conference on Decision and Control, 1995.

Automatic Target Recognition

1. R. Xu, C. Kwan, and L. Haynes, “Automatic Target Discrimination Using Neural Network,” Intelligent Engineering through Artificial Neural Network (ANNIE), pp. 187-192, 1998.

2. R. Xu, C. Kwan, and L. Haynes, “Target isolation in SAR images,” Algorithms for Synthetic Aperture Radar Imagery VIII, Proc. SPIE (vol. 4382), pp. 191-194, 2001.

3. J. Liang, X. Zhao, R. Xu, C. Kwan, and C-I Chang, “Target Detection With Texture Feature Coding Method and Support Vector Machines,” ICASSP 2004.

4. B. Ayhan, C. Kwan, X. Li and A. Trang, “Airborne Detection of Land Mines Using Mid-wave Infrared (MWIR) and Laser-illuminated-near Infrared Images with the RXD Hyperspectral Anomaly Detection Method,” 2006 Pattern Recognition in Remote Sensing.

Chemical Agent Classification

1. C. Kwan, B. Ayhan, G. Chen, C. Chang, J. Wang, and B. Ji, “A Novel Approach for Spectral Unmixing, Classification, and Concentration Estimation of Chemical and Biological Agents,” IEEE Trans. Geoscience and Remote Sensing, vol. 44, no. 2, Feb. 2006.

2. Z. Zhao, Y. Zhang, Y. Liu, C. Kwan, B. Ayhan, X. Li, H. Zhou, M. Ryan, and T. Griffin, “A Unified Framework for Vapor Classification and Concentration Estimation Using E-nose,” Sensors and Actuators, accepted, February 2006.

3. T. Qian, R. Xu, C. Kwan, B. Linnell, and R. Young, “Toxic Vapor Classification and Concentration Estimation for Space Shuttle and International Space Station,” Proc. Int. Symposium on Neural Networks, pp. 543-561, 2004.

4. T. Qian, X. Li, B. Ayhan, R. Xu, C. Kwan, and T. Griffin, “Application of Support Vector Machines to Vapor Detection and Classification for Environmental Monitoring of Spacecraft,” 2006 ISNN.

Communications

1. C. Kwan, H. Xu, and L. Haynes, “Fast Flow Control in High Speed Communication Networks,” 15^th Digital Communications Conference, pp. 19-24, September, 1996.

2. C. Kwan, H. Xu, C. Lin, and L. Haynes, “Optimization of Phase-Locked Loops With Guaranteed Stability,” 15^th Digital Communications Conference, pp. 36-41, September 1996.

3. C. Kwan, H. Xu, and L. Haynes, “Nonlinear Channel Equalization Using Fuzzy CMAC Neural Network,” 15^th Digital Communications Conference, pp. 25-35, September 1996.

4. C. Kwan, R. Xu, C. Chou, E. Geraniotis, “A Fast Flow Control Algorithm for High-Speed Communications Networks,” Conference on Decision and Control, pp.2139-2145, 1998.

5. C. Kwan, R. Xu, P. Clark and C. Hammond, “Traffic prediction tool for enhancing wireless network management,” Digital Wireless Communications III, Proc. SPIE (vol. 4395), pp. 240-249, 2001.

6. R. Seshadri, D. Lao, C. Kwan, J. P. Fonseka, “A High Performance, Low Complexity, and Bandwidth Efficient Receiver Design,” MILCOM 2005.

Fault Diagnostics/Prognostics

1. C. Kwan, R. Xu, and L. Haynes, “New data clustering technique and its applications,” Data Mining and Knowledge Discovery: Theory, Tools, and Technology III, Proc. SPIE (vol. 4384), pp. 1-5, 2001.

2. R. Xu, J. Chen, and C. Kwan, “Remote diagnosis tool via Internet,” Component and Systems Diagnostics, Prognosis, and Health Management, Proc. SPIE (vol. 4389), pp.47-50, 2001.

3. C. Kwan, A. Davydov, and R. Xu, “Helicopter gearbox fault isolation,” Component and Systems Diagnostics, Prognosis, and Health Management, Proc. SPIE (vol. 4389), pp. 133-137, 2001.

4. R. Xu, M. Stevenson, C. Kwan, and L. Haynes, “Ball bearing monitoring,” Component and Systems Diagnostics, Prognosis, and Health Management, Proc. SPIE (vol. 4389), pp. 216-218, 2001.

5. C. Kwan, R. Xu, and L. Haynes, “Gearbox failure prediction using infrared cameras,” Thermosense XXIII, Proc. SPIE (vol. 4360), 2001.

6. C. Kwan, X. Zhang, R. Xu, and L. Haynes, “A Novel Approach to Fault Diagnostics and Prognostics,” Int. Conference on Robotics and Automation, May, 2003.

7. C. Kwan, R. Xu, and X. Zhang, “Fault Detection and Identification in Aircraft Hydraulic Pumps Using MCA,” Safeprocess, 2003.

8. X. Zhang, R. Xu, C. Kwan, S. Y. Liang, Q. Xie, and L. Haynes, “An Integrated Approach to Bearing Fault Diagnostics and Prognostics,” American Control Conference, 2005.

9. W. Wongsaichua, W. J. lee, S. Oraintara, C. Kwan, and X. Zhang, “Integrated High Speed Intelligent Utility Tie Unit for Disbursed/Renewable Generation Facilities,” IEEE IAS Annual Conference, 2004.

10. H. Zhang, W Lee, C. Kwan, Z. Ren, H. Chen, J. Sheeley, “Artificial Neural Network Based On-line Partial Discharge Monitoring System for Motors,” IEEE, IAS, ICPS 2005 Annual Conference, May 7-11, 2005 at Saratoga Spring, NY.

11. R. Xu, T. Qian, and C. Kwan, “An Improved Optimal Pairwise Coupling Classifier,” ISNN 2005.

12. C. Kwan, T. Qian, Z. Ren, H. Chen, R. Xu, W.-J. Lee, H. Zhang, J. Sheeley, “A Novel Approach to Corona Monitoring,” ISNN 2005.

13. X. Zhang, M. M. Polycarpou, R. Xu, and C. Kwan, “Actuator fault diagnosis and accommodation for improved flight safety”, 2005 Joint IEEE International Symposium on Intelligent Control and Mediterranean Conference on Control and Automation conference.

14. X. Zhang, Y. Liu, R. Rysdyk, C. Kwan, and R. Xu, “An Intelligent Hierarchical Approach to Actuator Fault Diagnosis and Accommodation,” IEEE Aerospace Conference, 2006.

15. W. J. Lee, M. Sahni,K. Methaprayoon,C. Kwan,Z. Ren, and J. Sheeley, “A Novel Approach for Arcing Fault Detection for Medium/Low-Voltage Switchgear,” Conf. IEEE C&PS, 2006.

16. X. Zhang, D. Miller, R. Xu, C. Kwan, and H. Chen, “A Maximum Entropy based Approach to Fault Diagnosis Using Discrete and Continuous Variables,” Safeprocess 2006.

General Signal Processing Applications

1. H. Xu, C. Kwan, L. S. Haynes, and J. S. Pryor, “Real-Time Adaptive On-Line Traffic Incident Detection,” Journal of Fuzzy Systems, vol. 93, no. 2, pp. 173-183, 1998.

2. K. S. Yeung, K. L. Chen, and C. Kwan, “Implementing Unstable Filters Via Input Signal Reversal ^______ A State Variable Perspective,” IEEE Trans. Circuits and Systems, volume 45, no.1, January, 1998.

3. C. Kwan and F. L. Lewis, “A Note on Kalman Filtering,” IEEE Trans. Education, vol. 42, no. 3, August, 1999.

4. C. Kwan, X. Zhang, and R. Xu, “Early Fire Detection Using Acoustic Emissions,” Safeprocess, 2003.

5. X. Zhao, R. Xu, and C. Kwan, “Ship Motion Prediction: Algorithms and Simulation Results,” ICASSP 2004.

6. Y. Zhang, C. Kwan, Y. Deng, and D. Lao, “Bird Classification in Noisy Environments: Theory, Results and Comparative Studies,” Bird Strike Conference 2006.

Health Monitoring of Electromechanical Systems

1. W. Wongsaichua, W. Lee, S. Oraintara, C. Kwan, and F. Zhang, “Integrated High Speed Intelligent Utility Tie Unit for Disbursed/Renewable Generation Facilities,” IEEE Transactions on Industry Applications, Vol. 41, No. 2, pp. 507-513, 2005.

2. H. Xu, C. Kwan, and L.S. Haynes, “Machine Performance Degradation Monitoring Using Fuzzy CMAC,” American Control Conference, June, 1997.

3. R. Xu, C. Kwan, J. Lang, M. Stevenson, Y. Lin, and L. Haynes, “Health Monitoring of Rotating Shaft Systems Using Neural Network,” Intelligent Engineering through Artificial Neural Network (ANNIE), pp. 703-707, 1998.

4. H. Xu, C. Kwan, J. Lang, and L. Haynes, “Health Monitoring of Flight Critical Systems Using Fuzzy CMAC,” International Conference on Signal and Image Processing, pp. 31-35, 1998.

5. C. Kwan, R. Xu, L. Richards, and D. Larson, “Structural Integrity Monitoring of Aircraft Using Principal Component Analysis,” Proc. 3^rd International Workshop on Structural Integrity Monitoring, pp.316-325, 2001

[back]

Image Processing

1. H. Xu, C. Kwan, L. Haynes, K. Jarausch and P. Russel, “Fuzzy CMAC for Enhancement of Scanning Probe Microscope Images,” International Conference on Signal and Image Processing, pp. 36-40, 1998.

2. X. Li and C. Kwan, “Geometrical Feature Extraction for Robust Speech Recognition,” 39th Asilomar Conference on Signals, Systems, and Computers (a conference of IEEE Signal Processing Society), November, 2005.

Image/Video Compression

1. C. Kwan, B. Li, R. Xu, X. Li, T. Tran, and T. Nguyen, “A Complete Image Compression Codec Based on Overlapped Block Transform, “ Applied Signal Processing, accepted, January 2006.

2. C. Kwan, B. Li, R. Xu, T. Tran, and T. Nguyen, “Very low-bit-rate video compression using wavelets,” Wavelet Applications VIII, Proc. SPIE (vol. 4391), pp.176-180, 2001.

3. C. Kwan, B. Li, R. Xu, T. Tran, and T. Nguyen, “SAR image compression using wavelets,” Wavelet Applications VIII, Proc. SPIE (vol. 4391), pp. 349-357, 2001.

Nondestructive Inspection

1. X. Zhao, V. K. Varma, G. Mei, B. Ayhan, and C. Kwan, “In-Line Nondestructive Inspection of Mechanical Dents on Pipelines with Guided Shear Horizontal Wave Electromagnetic Acoustic Transducers,” ASME Journal of Pressure Vessel Technology, Volume 127, Issue 3, pp. 304-309, 2005.

2. C. Kwan, R. Xu, and L. Haynes, “Composite delamination detection using infrared camera,” Infrared Technology and Applications XXVII, Proc. SPIE (vol. 4369), 2001.

3. X. Zhao, C. Kwan, R. Xu, T. Qian, T. Hay, J. L. Rose, B. B. Raju, R. Maier, and R. Hexemer, “Nondestructive Inspection of Metal Matrix Composites Using Guided Waves,” QNDE, 2003.

4. C. Kwan, G. Zhao, Z. Ren, R. Xu, L. Haynes, and K. M. Luk, “Wireless nondestructive inspection of a layered structure with ultrasonic guided waves,” Tri-Service Corrosion Conference, 2003.

5. X. Zhao, C. Kwan, Z. Ren and B. Ayhan, “Wireless Health Monitoring of an Aircraft Wing,” 2004 Int. Workshop on Corrosion, Lexington Park, 2004.

6. X. Zhao, C. Kwan and K. M. Luk, “Wireless Nondestructive Inspection of Aircraft Wing with Ultrasonic Guided Waves,” 16th World Conference on Nondestructive Testing, Montreal, 2004.

7. X. Zhao, C. Kwan, and B. Mi, S. Owens, R. L. Royer Jr. and J. L. Rose, and B. B. Raju, “Nondestructive Inspection of Metal Matrix Tank Shoes with Ultrasounds,” 53rd Defense Working Group on Nondestructive Testing,” November 2005.

Sensor Validation

1. R. Xu and C. Kwan, “Robust Isolation of Sensor Failures,” Asian Journal of Control, Vol. 5, No. 1, pp. 12-23, March 2003.

2. C. Kwan and R. Xu, “A Note on Simultaneous Isolation of Sensor and Actuator Faults,” IEEE Trans. Control System Technology, pp.183-192, vol. 12, no. 1, 2004.

3. C. Kwan, R. Xu, and W. Li, “A new approach to sensor validation,” Power 2000, Taipei, Taiwan.

4. R. Xu, G. Zhang, X. Zhang, C. Kwan, and K. Semega, “Sensor Validation Using Nonlinear Minor Component Analysis,” 2006 ISNN.

5. J. Cao, C. Kwan, R. Xu, and F. Figueroa, “Simultaneous Sensor and Process Fault Diagnostics for Propellant Feed System,” Safeprocess 2006.

Speech Processing

1. C. Kwan, X. Li, D. Lao, Y. Deng, B. Raj, R. Singh, and R. Stern, “Voice Driven Applications in Non-stationary and Chaotic Environment,” Int. J. Signal Processing, accepted for publication, October 2005.

2. R. Xu, G. Mei, Z. Ren, C. Kwan, J. Aube, C. Rochet, and V. Stanford, “Towards User Sensitive Interfaces: Autodirective Speech Acquisition for Speaker Identification and Speech Recognition Using Phased Arrays,” Springer Lecture Notes in Artificial Intelligence special volume on Ambient Intelligence in Everyday Life, 2006.

3. C. Kwan, Z. Ren, R. Xu, L. Haynes, and V. Lenz, “VOX Prototype Development and Experimental Results,” Int. Conf. on Acoustics, Speech, and Signal Processing, 2003

4. R. Xu, G. Mei, Z. Ren, C. Kwan, V. Stanford, J. Aube, and C. Rochet, “A Real Time Speaker Verification Demonstration on the Smart Flow System,” 2004 Int. Symposium on Intelligent Multimedia, Video and Speech Processing.

5. R. Xu, Z. Ren, W. Dai, D. Lao, and C. Kwan, “Multimodal Speech Enhancement in Noisy Environment,” 2004 Int. Symposium on Intelligent Multimedia, Video and Speech Processing.

Target Tracking

1. Z. Zhao, H. Chen, G. Chen, C. Kwan, and X. Li, “Comparison of several ballistic target tracking filters,” ACC 2006.

2. Z. Zhao, H. Chen, G. Chen, C. Kwan, X. R. Li, “IMM-LMMSE Filtering Algorithm for Ballistic Target Tracking with Unknown Ballistic Coefficient,” SPIE, 2006.

3. X. Li, C. Kwan, G. Mei, B. Li, “A Generic Approach to Object Matching and Tracking”, ICIAR, 2006.