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|Title:||Impact of range chirp on chirp scaling algorithm|
Yeo, Tat Soon
|Source:||Sun, Xiaobing,Yeo, Tat Soon (1999). Impact of range chirp on chirp scaling algorithm. International Geoscience and Remote Sensing Symposium (IGARSS) 1 : 556-558. ScholarBank@NUS Repository.|
|Abstract:||Chirp scaling algorithm (CSA) is considered as an efficient SAR imaging algorithm. The existence of the range-uncompressed chirp is the necessary condition for CSA to be used. However, if the range chirp is large in high squint angle case, there will be a strong coupling between the range chirp and azimuth frequency. This coupling will render the relationship between range curvature and Doppler frequency non-linear and hence make the CSA lost its precision in such case. An analysis about this couple effect and a compensating method are given in this paper. Computer simulation has confirmed the coupling effect. A possible solution to this problem is also mentioned.|
|Source Title:||International Geoscience and Remote Sensing Symposium (IGARSS)|
|Appears in Collections:||Staff Publications|
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