期刊
SENSORS
卷 19, 期 7, 页码 -出版社
MDPI
DOI: 10.3390/s19071701
关键词
SAR imaging; multi-angle SAR; improved RMA; SAR image fusion
资金
- National Key R&D Program of China [2017YFC1405600]
Considering the difficulty of pulse repetition frequency (PRF) design in multi-angle SAR when using ultra-high speed platforms, a multi-angle SAR imaging system in a unified coordinate system is proposed. The digital multi-beamforming is used in the system and multi-angle SAR data can be obtained in one flight. Therefore, the system improves the efficiency of data recording. An improved range migration algorithm (RMA) is used for data processing, and imaging is made in a unified imaging coordinate system. The resolution of different view images is the same, and there is a fixed delay between the images. On this basis, the SAR image fusion is performed after image matching. The results of simulation and measured data confirm the effectiveness of the system and the method.
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