毫米波小斜视SAR垂直航向运动分析与补偿 |
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摘 要: |
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收稿时间: | 2014-08-12 |
Cross-track motion analysis and compensation of millimeter wave small squint SAR |
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Authors: | XING Tao LI Jun HU Qingrong XING Mengdao |
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Affiliation: | (1. Beijing Institute of Radio Measurement, Beijing 100854, China;
2. National Key Lab. of Radar Signal Processing, Xidian Univ., Xi'an 710071, China) |
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Abstract: | In millimeter wave high resolution SAR imaging, the existing squint SAR cross-track motion compensation algorithm brings into a phase error of more than π/4 during the imaging process. The phase error would worsen the compensation effect. This paper transforms the squint slant range with the motion error into the side-looking slant range. We adopt the side-looking cross-track motion compensation algorithm to cross-track motion compensation. The proposed algorithm works well on the millimeter wave real data in the 10° squint angle and the results are better than those obtained by existing algorithms in the same squint angle. |
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Keywords: | synthetic aperture radar(SAR) high resolution squint millimeter wave motion compensation |
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