單相位中心多波束合成孔徑雷達(dá)方位信號處理研究
Study on Azimuth Signal Processing of Single Phase Center Multiple Beams Synthetic Aperture Radar
-
摘要: 采用單相位中心多波束(SPCMB)技術(shù)是實(shí)現(xiàn)高分辨率寬測繪帶合成孔徑雷達(dá)系統(tǒng)的一種技術(shù)途徑。該文介紹了SPCMB技術(shù)的原理,給出了這種模式的系統(tǒng)模型和信號特征,提出了方位向信號處理的方法,并利用星載點(diǎn)目標(biāo)仿真和機(jī)載原始數(shù)據(jù)模擬的方法驗(yàn)證了該信號處理方法的可行性。Abstract: Single Phase Center Multiple Beams(SPCMB) technique is one of solutions to implement high resolution wide swath spaceborne synthetic aperture radar systems. The system model and signal characteristics are described based on the introduction to the principle of single phase center multiple beams technique in the paper. A method of azimuth signal processing is presented, and is proved by spaceborne point-target simulation and airborne raw data simulation.
-
Freeman A, Johnson W T K, Huneycutt B, et al.. The Myth of the minimum SAR antenna area constraint[J].IEEE Trans. on Geosci. Remote Sensing.2000, 38(1):320-[2]Currie A.[J].Hall C D. A synthetic aperture radar technique for the simultaneous provision of high-resolution wide-swath coverage.Conf. Proc. Military Microwaves90. Microwave Exhibitions Publishers Ltd., London, July.1990,:-[3]Currie A, Brown M A. Wide-swath SAR. IEE Proc.-F. 1992,139(2): 122- 135.[4][日]藤坂貴彥著,王淑蘭譯.方位向高分辨力寬測繪帶的多波束合成孔徑雷達(dá).空載雷達(dá),2000,(4):36-44.[5]Davidson G W, Cumming I. Signal properties of spacebome squint-mode SAR[J].IEEE Trans. on Geosci. Remote Sensing.1997,35(3):611-[6]Curlander J C, McDonough R N. Synthetic Aperture Radar Systems and Signal Processing. New York, John Wiley Sons, Inc. 1991:565 - 590.[7]陳芳允,賈乃華.衛(wèi)星測控手冊.北京:科學(xué)出版社,1992:89-96.[8]禹衛(wèi)東.用分布式小衛(wèi)星提高星載SAR的方位向分辨率.系統(tǒng)工程與電子技術(shù),2002,24(7):43-45,122. -
計(jì)量
- 文章訪問數(shù): 2544
- HTML全文瀏覽量: 97
- PDF下載量: 751
- 被引次數(shù): 0
下載:
