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| Studies and design on space-borne ScanSAR system |
| Qiao Rongrong; Wang Zhensong |
| Institute of Ecletronics Chinese Academy of Sciences Beijing 100080 China |
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Abstract Based on the principles of the space-borne ScanSAR, some important parameters to define the position of sub-swathes, the timing sequence of the system, the choice of the PRFs, the number of the samples of each burst and the SNR are investigated. Some critical problems about ScanSAR system are discussed, such as the number of the multi-looks, the azimuth resolution and the range ambiguities. A new concept of the range ambiguities is put forward, analyzed and verified. Based on above discussion and calculation, the data format for the practical ScanSAR system is suggested.
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Received: 12 June 2000
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2002, Vol. 24 
