Improved Time-variant Attitude Compensating Whitt Polarimetric Calibration Algorithm

LIU Yunlong; LIANG Xingdong; LI Yanlei; ZHOU Liangjiang

doi:10.11999/JEIT170177

Volume 39 Issue 10

Oct. 2017

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Article Navigation > Journal of Electronics & Information Technology > 2017 > 39(10): 2354-2359

LIU Yunlong, LIANG Xingdong, LI Yanlei, ZHOU Liangjiang. Improved Time-variant Attitude Compensating Whitt Polarimetric Calibration Algorithm[J]. Journal of Electronics & Information Technology, 2017, 39(10): 2354-2359. doi: 10.11999/JEIT170177

Citation:

LIU Yunlong, LIANG Xingdong, LI Yanlei, ZHOU Liangjiang. Improved Time-variant Attitude Compensating Whitt Polarimetric Calibration Algorithm[J]. Journal of Electronics & Information Technology, 2017, 39(10): 2354-2359. doi: 10.11999/JEIT170177

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Improved Time-variant Attitude Compensating Whitt Polarimetric Calibration Algorithm

doi: 10.11999/JEIT170177 cstr: 32379.14.JEIT170177

Funds:

National 863 Program of China (2013AA092105)

Received Date: 2017-03-01
Rev Recd Date: 2017-05-19
Publish Date: 2017-10-19

Abstract

Abstract

Polarization calibration is an important prerequisite for practical application such as target detection, classification recognition and quantitative inversion. The attitude variance of carrier platform can cause variance of polarization orientation angle, thus reducing the polarization calibration precision. Improved algorithms based on Whitt algorithm is proposed for this problem. In this paper, the problem of these improved algorithms is analyzed in detail, and on this basis, a polarimatric calibration algorithm, which takes channel unbalance into consider and compensates the time-varying attitude pulse by pulse, is proposed, and it can effectively suppress the influence of attitude change on polarization calibration. Simulation results and experimental data processing verify the effectiveness of the proposed algorithm.
- Airborne SAR,
- Polarimetric calibration,
- Attitude variant,
- Polarimetric orientation angle,
- Polarization distortion matrix

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References(21)

References

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