SRC Imaging Method of De-chirped Broadband LFM Signal and Its Real Time Implementation

Yao Ping; Zhang Tao; Li Ming-feng; Wang Zhen-song

Volume 26 Issue 2

Feb. 2004

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Article Navigation > Journal of Electronics & Information Technology > 2004 > 26(2): 183-187

Yao Ping, Zhang Tao, Li Ming-feng, Wang Zhen-song. SRC Imaging Method of De-chirped Broadband LFM Signal and Its Real Time Implementation[J]. Journal of Electronics & Information Technology, 2004, 26(2): 183-187.

Citation:

Yao Ping, Zhang Tao, Li Ming-feng, Wang Zhen-song. SRC Imaging Method of De-chirped Broadband LFM Signal and Its Real Time Implementation[J]. Journal of Electronics & Information Technology, 2004, 26(2): 183-187.

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SRC Imaging Method of De-chirped Broadband LFM Signal and Its Real Time Implementation

Received Date: 2002-08-30
Rev Recd Date: 2003-01-20
Publish Date: 2004-02-19

Abstract

Abstract

Based on the analysis of the time and frequency domain character of the de-chirped broadband LFM signal, this paper presents the SRC imaging method of S AR with de-chirped LFM signal. In comparison with the RD and SRC method of normal LFM signal with the same swath and resolution, this method is proved suitable for real time processing with a decrease of data to be processed and a little amount of calculation increased. Data collected in de-chirp LFM SAR system is formed into images with this method and demonstrates it is better than RD to form fine-resolution images when there exits a squint angle in SAR system, which is usually the case in reality.

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References(1)

References

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