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Digital receiving technology of multi-bandwidth synthetic aperture radar system based on FPGA
Received date: 2010-03-22
Online published: 2010-11-15
Considering the problems in traditional multi-bandwidth synthetic aperture radar (SAR) system, such as too many filters and sampling clocks, we present a new digital processing scheme. This scheme needs only one highest frequency sampling clock to obtain the discrete data; other data with lower frequencies can be acquired by interpolation; and digital filter fulfills the function of filtering signals with different bandwidths. This technique simplifies the design of the SAR system and improves the reliability. The architecture of the algorithm, the simulation results, and the implementation of the algorithm based on FPGA are expounded in detail.
HE Bin , ZHANG Zhi-Min . Digital receiving technology of multi-bandwidth synthetic aperture radar system based on FPGA[J]. Journal of University of Chinese Academy of Sciences, 2010 , 27(6) : 853 -858 . DOI: 10.7523/j.issn.2095-6134.2010.6.018
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