Progress In Electromagnetics Research
ISSN: 1070-4698, E-ISSN: 1559-8985
Home | Search | Notification | Authors | Submission | PIERS Home | EM Academy
Home > Vol. 142 > pp. 141-157


By J. Chen, Y. Zhu, P. Wang, and W. Yang

Full Article PDF (506 KB)

Sidelobes of strong targets substantially impact image quality of synthetic aperture radar (SAR) using linear frequency modulation (LFM) waveform, especially in urban areas. A novel space-borne azimuth multi-channel SAR scheme with ultra-low range sidelobe-ratio (RSLR) performance was proposed, employing complete complementary sequence (CC-S) coding waveform. The CC-S waveform was utilized to acquire ultra-low RSLR performance in range direction. Azimuth multi-channel scheme was introduced, to compensate reduction of effective PRF due to employing CC-S, and to mitigate azimuth resolution lost resulted from strong azimuth weighting, in order to implement low side-lobe performance in both range and azimuth direction. The method for pre-processing the CC-S based multi-channel SAR data was proposed, which would both compensate receiving time difference of sub-sequences and reconstruct azimuth spectrum of multi-channel SAR data. Furthermore, the corresponding image formation algorithm for accurately focusing raw data of the SAR system was also proposed. Computer simulation results were presented, which demonstrated the validity of the proposed SAR scheme and image formation algorithm.

J. Chen, Y. Zhu, P. Wang, and W. Yang, "Complete Complementary Sequence Coding Waveform Based Azimuth Multi-Channel Space-Borne SAR with Ultra-Low Range Sidelobe Ratio Performance," Progress In Electromagnetics Research, Vol. 142, 141-157, 2013.

1. Wang, Y., J. Li, J. Chen, H. Xu, and B. Sun, "A novel non-interpolation polar format algorithm using non-lineal flight trajectories and auto-adaptive PRF technique," Progress In Electromagnetics Research, Vol. 122, 155-173, 2012.

2. Chen, J., J. Gao, Y. Zhu, W. Yang, and P. Wang, "A novel image formation algorithm for high-resolution wide-swath spaceborne SAR using compressed sensing on azimuth displacement phase center antenna," Progress In Electromagnetics Research, Vol. 125, 527-543, 2012.

3. Ismail, A., M. Mohamadpoor, R. S. A. Raja Abdullah, and A. F. Abas, "A circular synthetic aperture radar for on-the-ground object detection," Progress In Electromagnetics Research, Vol. 122, 269-292, 2012.

4. Sun, J., S. Mao, G.Wang, and W. Hong, "Extended exact transfer function algorithm for bistatic SAR of translational invariant case," Progress In Electromagnetics Research, Vol. 99, 89-108, 2009.

5. Xu, W., P. P. Huang, and Y. K. Deng, "Multi-channel SPCMB-TOPS SAR for high-resolution wide-swath imaging," Progress In Electromagnetics Research, Vol. 116, 533-551, 2011.

6. Zhang, M., Y. W. Zhao, H. Chen, and W. Q. Jiang, "SAR imaging simulation for composite model of ship on dynamic ocean scene," Progress In Electromagnetics Research, Vol. 113, 395-412, 2011.

7. Stankwitz, H. C., R. J. Dallaire, and J. R. Fienup, "Spatially variant apodization for sidelobe control in SAR imagery," Radar Conference, 132-137, 1994.

8. Thomas, G., B. C. Flores, and J. Sok-Son, "SAR sidelobe apodization using the Kaiser window," Imaging Processing, 709-712, 2000.

9. Zhang, P., Z. Li, J. Zhou, and Q. Chen, "A new SAR superresolution imaging algorithm based on adaptive sidelobe reduction," Proc. IGARSS, 2789-2792, Toronto, Canada, 2011.

10. Li, S. F., J. Chen, L. Q. Zhang, and Y. Q. Zhou, "Image formation algorithm for missile borne MMW SAR with phase coded waveform," Proc. Radar Conference, 1-4, 2009.

11. Durai, R. S. R., "A class of optimal complete-complementary codes of different length," Proc. Signal Design and Its Applications in Communications, 92-95, 2011.

12. Huang, X. and Y. Li, "Polyphase scalable complete complementary sets of sequences," The 8th International Conference on Communication Systems, Vol. 2, 810-814, 2002.

13. Suehiro, N., "Complete complementary code composed of N-multiple-shift orthogonal sequences," IEICE Trans., Vol. J65-A, 1247-1253, 1982.

14. Gerhard, K., G. Nicolas, and M. Alberto, "Unambiguous SAR signal reconstruction from nonuniform displaced phase center sampling," IEEE Geoscience and Remote Sensing Letters, Vol. 1, No. 4, 260-264, Oct. 2004.

15. Chua, M. Y. and V. C. Koo, "FPGA-based chirp generator for high resolution UAV SAR," Progress In Electromagnetics Research, Vol. 99, 71-88, 2009.

16. Wei, S. J., X. L. Zhang, J. Shi, and G. Xiang, "Sparse reconstruction for SAR imaging based on compressed sensing," Progress In Electromagnetics Research, Vol. 109, 63-81, 2010.

17. Mao, X., D. Y. Zhu, and Z. D. Zhu, "Signatures of moving target in polar format spotlight SAR image," Progress In Electromagnetics Research, Vol. 92, 47-64, 2009.

18. Han, C., N. Suehiro, and T. Hashimoto, "N-shift cross-orthogonal sequences and complete complementary Codes," ISIT 2007, 2611-2615, Jun. 2007.

19. Li, S., J. Chen, L. Zhang, and Y. Zhou, "Construction of quadri-phase complete complementary pairs applied in MIMO radar systems," The 9th International Conference on Signal Processing (ICSP), 2298-2301, 2008.

20. Currie, A. and M. A. Brown, "Wide-swath SAR," Proc. Inst. Electr. Eng. F - Radar Signal Process., Vol. 139, No. 2, 122-135, Apr. 1992.

21. Gebert, N., G. Krieger, and A. Moreira, "Multichannel azimuth processing in ScanSAR and TOPS mode operation," IEEE Trans. Geosci. Remote Sens., Vol. 48, No. 7, 2994-3008, Jul. 2010.

22. Xu, W. and Y. Deng, "Multi-channel SAR system with reflector antenna for high-resolution wide-swath imaging," IEEE Antenna nd Wireless Propa. Lett., Vol. 9, 1123-1126, Dec. 2010.

23. Gebert, N., G. Krieger, and A. Moreira, "Digital beam forming on receive-techniques and optimization strategies for high resolution wide-swath SAR imaging," IEEE Transaction on Aerospace and Electronic Systems, Vol. 45, No. 2, 564-592, Apr. 2009.

24. Cumming, I. G. and F. H. Wong, Digital Processing of Synthetic Aperture Radar Data: Algorithm and Implementation, Artech House, Norwood, MA, 2005.

© Copyright 2014 EMW Publishing. All Rights Reserved