應用分布目標的多極化合成孔徑雷達定標技術(shù)
The Calibration Technique of Polarimetric SAR Using Distributed Targets
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摘要: 該文對Sarabandi的分布目標定標算法作了改進。然后利用SIR-C系統(tǒng)的L波段的未定標的和經(jīng)過SIR-C定標組定標過的同一場景數(shù)據(jù)，采用修正的Sarabandi算法進行定標實驗。最后比較該算法結(jié)果與SIR-C定標組定標結(jié)果。檢驗該算法的性能。
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關(guān)鍵詞:
- 極化; 合成孔徑雷達（SAR）; 定標
Abstract: The Sarabandis Calibration Algorithm(SCA) using distributed targets is modified in the paper. Then the calibration experiment with the Modified Sarabandis Calibration Algorithm(MSCA) is carried out, using the uncalibrated image data and calibrated image data from the same scene obtained by SIR-C system L band SAR. Finally, the calibration result of MSCA is compared with that obtained by SIR-C calibration group and the performance of MSCA is verified. -
Sarabandi K, Oh Y, Ulaby F T. Measurement and calibration of differential Mueller matrix of distributed targets. IEEE Trans. on Antenna and Propagation, 1992, AP-40(12): 1524-1532.[2]Sarabandi K. Calibration of a polarimetric synthetic aperture radar using a known distributed target. IEEE Trans. on Geosci. Remote Sensing, 1994, GRS-32(3): 575-582.[3]Freeman A, Alves M, Chapman B, Cruz J, Kim Y, Shaffer S, Sun J, Turner E, Sarabandi K.SIR-C data quality and calibration results. IEEE Trans. on Geosci. Remote Sensing, 1995,GRS-33(4): 848-857.[4]Sarabandi K. Derivation of phase statistics from the Mueller matrix[J].Radio Science.1992, 27(5):553-560 -
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