Jiao Wei, Liang Xing-dong, Ding Chi-biao. Extraction and Correction of SAR Amplitude and Phase Errors Based on Internal Calibration Signal[J]. Journal of Electronics & Information Technology, 2005, 27(12): 1883-1886.
Citation:
Jiao Wei, Liang Xing-dong, Ding Chi-biao. Extraction and Correction of SAR Amplitude and Phase Errors
Based on Internal Calibration Signal[J]. Journal of Electronics & Information Technology, 2005, 27(12): 1883-1886.
Jiao Wei, Liang Xing-dong, Ding Chi-biao. Extraction and Correction of SAR Amplitude and Phase Errors Based on Internal Calibration Signal[J]. Journal of Electronics & Information Technology, 2005, 27(12): 1883-1886.
Citation:
Jiao Wei, Liang Xing-dong, Ding Chi-biao. Extraction and Correction of SAR Amplitude and Phase Errors
Based on Internal Calibration Signal[J]. Journal of Electronics & Information Technology, 2005, 27(12): 1883-1886.
Based on the design of three-path calibrator of SAR, this paper proposes one solution of obtaining system errors information from internal calibrator signal to correct the received SAR data in frequency domain. Compared with the methodology of extracting system phase errors from SAR echo data, the method addressed in this paper has two advantages: it is convenient to use since it is independent of ground objects; it can extract system phase errors as well as amplitude errors. Experimental results indicate that the method is very effective to improve image quality.
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