機(jī)載雙站合成孔徑雷達(dá)Chirp Scaling成像算法
The Chirp Scaling Algorithm of Airborne Bistatic SAR Imaging
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摘要: 該文在分析機(jī)載雙站SAR回波模型的基礎(chǔ)上，結(jié)合常規(guī)單站SAR的Chirp scaling成像算法思想，推導(dǎo)出了雙站SAR的Chirp scaling成像算法。對雙站SAR的Chirp scaling成像算法進(jìn)行了誤差分析。最后通過仿真驗(yàn)證了算法的有效性。
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關(guān)鍵詞:
- 合成孔徑雷達(dá);機(jī)載雙站; Chirp-scaling算法
Abstract: The echo model of airborne bistatic SAR is analyzed in this paper. Based on the echo model and the chirp scaling algorithm of monostatic SAR imaging, the chirp scaling algorithm of bistatic SAR imaging is deduced, and its error is analyzed subsequently. Finally, it is proved to be correct by the simulation results. -
湯子躍, 張守融. 雙站合成孔徑雷達(dá)系統(tǒng)原理. 北京: 科學(xué)出版社, 2003: 20.50.[2]湯子躍, 張守融. 雙站SAR 的方位分辨力、脈沖重復(fù)頻率和測繪帶寬[J].電子與信息學(xué)報(bào).2004, 26(4):607-瀏覽[3]湯子躍, 張守融, 王衛(wèi)延. HT運(yùn)動誤差對雙站SAR相位同步及成像的影響TH. 電子學(xué)報(bào), 2003, 31(12): 1907.1910.[4]Ender J H G. Signal theoretical aspects of bistatic SAR. IEEEInternational Geosci. and Remote Sensing Symp., Toulouse, July2003: 1438.1441.[5]Raney R K, Runge H, Bamler R et al.. Precision SAR processingusing chirp scaling. IEEE Trans. on GRS, 1994, 32(4) : 786.799.[6]Runge H, Bamler R. A novel nigh precision SAR focusingalgorithm based on chirp scaling. IGARSS 92, Clear Lake, TX,May 1992: 372.375.Raney R K. A new and fundamental Fourier transform pair. InProc. IEEE Geosci. Remote Sensing Symp., IGARSS92, ClearLake, TX, May 1992: 106 .107. -
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