Communication & Signal Processing
- Multi-layered schemes in MIMO systems
- OFDM for Cooperative Networks
- Radar Imaging
- 50% Efficient Solar Cells
- Capacity optimization
- Channel coding for non-standard channels with memory
- Exploiting Diversity in Wireless Networks
- Image Compression
- Low-density generator matrix codes
- Message Authentication in Noisy Environments
- Multi-tone blue noise dithering
- Inverse Lithography
- Space-time/frequency coding for MIMO and cooperative communications systems
- Steganalysis of Digital Images and Videos
- Turbo-like codes for distributed source and joint source-channel coding
- Compressive sensing in imaging, sensor networks, and UWB radios
- Lossless Data Compression
Investigate MIMO radar imaging with inverse scattering theory and applications in wall penetration. Study the limitation and advantage of MIMO radar from inverse scattering theory.
Investigate robust phase unwrapping and Chinese remainder theorem for moving target imaging.
G. Li, J. Xu, Y. Peng, and X.-G. Xia, Location and imaging of moving targets using non-uniform linear antenna array, IEEE Trans. on Aerospace and Electronic Systems, no. 3, 2007.
G. Li, J. Xu, Y. Peng, and X.-G. Xia, Moving target location and imaging using dual-speed velocity SAR, IET Radar, Sonar & Navigation (formerly IEE Radar, Sonar & Navigation), vol. 1, no. 2, pp.158-163, April 2007.
G. Li, J. Xu, Y. Peng, and X.-G. Xia, An efficient implementation of a phase unwrapping algorithm, IEEE Signal Processing Letters, June 2007.
X.-G. Xia and G. Wang, Phase Unwrapping and A Robust Chinese Remainder Theorem, IEEE Signal Processing Letters, April 2007.
G. Li, J. Xu, Y.-N. Peng, and X.-G. Xia, Bistatic Linear Antenna Array SAR for Moving Target Detection, Location and Imaging with Two Passive Airborne Radars, IEEE Transactions on Geoscience and Remote Sensing, March 2007.
H. Liao and X.-G. Xia, A Sharpened Dynamic Range of a Generalized Chinese Remainder Theorem for Multiple Integers, IEEE Trans. on Information Theory, Jan. 2007.
G. Wang, X.-G. Xia, and V. C. Chen, Dual-Speed SAR Imaging of Moving Targets, IEEE Trans. on Aerospace and Electronic Systems, Jan. 2006.
X.-G. Xia and K. Liu, A Generalized Chinese Remainder Theorem for Residue Sets with Errors and Its Application in Frequency Determination from Multiple Sensors with Low Sampling Rates, IEEE Signal Processing Letters, Nov. 2005.
G. Wang, X.-G. Xia , V. C. Chen, and R. L. Fiedler, Detection, Location and Imaging of Fast Moving Targets Using Multi-Frequency Antenna Array SAR, IEEE Trans. on Aerospace and Electronics Systems, vol. 40, pp.345-355, Jan. 2004.
G. Wang, X.-G. Xia, V. C. Chen, Radar imaging of moving targets in foliage using multi-frequency multi-aperture polarimetric SAR, IEEE Trans. on Geoscience and Remote Sensing, Aug. 2003.
X.-G. Xia, G. Wang, and V. C. Chen, A Quantitative Signal-to-Noise Ratio Analysis for ISAR Imaging Using Joint Time-Frequency Analysis --Short Time Fourier Transform, IEEE Trans. on Aerospace and Electronics Systems, April 2002.