paper 150304024649

Published: 2015-07-09

Compensation for System Distortion Using Low Signal-to-noise-ratio Echo from Spherical Satellite

Zengping Chen,

Zengping Chen

National University of Defense Technology, China

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Weixing Li,

Weixing Li

National University of Defense Technology, China

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Gang Li,

Gang Li

National University of Defense Technology, China

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Jianzhi Lin,

Jianzhi Lin

National University of Defense Technology, China

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Weihua Wang

National University of Defense Technology, China

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Proceedings of 2015 Photonics & Electromagnetics Research Symposium, Prague, July 6 - 9，Page(s)1385-1389

Abstract

Compensation for amplitude and phase distortion in inverse synthetic aperture radar (ISAR) system is important for the system performance. People cannot help but take an active radar calibrator on a tower as an external test target to measure the distortion and carry out the compensation though it includes extraneous components and induces additional distortion. So a new method for distortion compensation is presented, which is based on the low signal-to- noise-ratio (SNR) echo from a spherical satellite. The technique of pulse compression based on matched filtering is used and then the target region is extracted and inverse matched filtering is applied to achieve the high SNR echo. Thus the amplitude and phase error coefficients can be calculated, which results in excellent compensation for the system distortion. Experimental results based on real radar data show the effectiveness of the proposed method. Comparison results with other scheme are also presented to prove the superiority of our approach.

Citation

Zengping Chen, Weixing Li, Gang Li, Jianzhi Lin, and Weihua Wang, "Compensation for System Distortion Using Low Signal-to-noise-ratio Echo from Spherical Satellite," Proceedings of 2015 Photonics & Electromagnetics Research Symposium, Prague, July 6 - 9，Page(s)1385-1389

References

1. Zhang, B., Y. Pi, and X. Yang, "Terahertz imaging radar with aperture synthetic techniques for object detection," 2013 IEEE International Conference on Communications Workshops (ICC), 921-925, Budapest, Hung, June 2013.
doi:10.1109/iccw.2013.6649366 Google Scholar

2. Tait, P., "Introduction to radar target recognition," The Institution of Engineering and Technology, London, 2009. Google Scholar

3. Chandra, M., "Tropospheric-propagation induced distortion of wideband signals," Proceedings of EuCAP-2013, 2531-2531, Gothenburg, Swed., 2013. Google Scholar

4. Chun, C., Z. Ding, and C. Wang, "The analysis of dispersive distortions on linear polarization radar signal," IET International Radar Conference 2013, 1-5, Xi'an, China, 2013.
doi:10.1049/cp.2013.0159 Google Scholar

5. Swaminathan, J. N. and P. Kumar, "Design and linearization of solid state power amplifier using pre-distortion technique," 2013 International Conference on Computer Communication and Informatics, 1-3, Coimbatore, India, January 2013.
doi:10.1109/iccci.2013.6466115 Google Scholar

6. Kim, S. and N. Myung, "Wideband linear frequency modulated waveform compensation using system predistortion and phase coefficients extraction method," IEEE Microw. Compon. Lett., Vol. 17, No. 11, 808-810, 2007. Google Scholar

7. Grimm, M., M. Allen, J. Marttila, M. Valkama, and R. Thoma, "Joint mitigation of nonlinear RF and baseband distortions in wideband direct-conversion receivers," IEEE Transactions on Microwave Theory and Techniques, Vol. 62, No. 1, 166-182, January 2014.
doi:10.1109/tmtt.2013.2292603 Google Scholar

8. Witt, J. and W. Nel, "Range Doppler dynamic range considerations for Dechirp on receive radar," Proceedings of EuRAD-2008, 136-139, Amsterdam, Neth., 2008. Google Scholar

9. Krichene, H., E. Brawley, K. Lauritzen, A. Wu, and S. Talisa, "Time sidelobe correction of hardware errors in stretch processing," IEEE Transactions on Aerospace and Electronic Systems, Vol. 48, No. 1, 637-647, January 2012.
doi:10.1109/taes.2012.6129660 Google Scholar

10. Wheeler, H. A., "The interpretation of amplitude and phase distortion in terms of paired echoes," Proceedings of the I.R.E., Vol. 27, No. 6, 359-384, June 1939.
doi:10.1109/jrproc.1939.228449 Google Scholar