摘要
研究了双站(收发分置)合成孔径雷达(双站SAR)若干关键技术。首先给出了双站SAR的回波信号模型,接着分析了方位多普勒信息。由于方位多普勒质心和多普勒带宽与不同的几何布局有关,侧重分析了双站SAR平飞模式等距离不同方位点目标的多普勒信息。最后研究了在双站平行飞行模式下的RD算法及BP算法,并用该算法进行了点目标仿真,分析了这两种算法在双站SAR成像中的应用特点。
In this paper, some key techniques of Bistatic Synthetic Aperture Radar (Bistatic SAR) are researched. First, the echo signal model of Bistatic SAR is given and then the analysis of the signal in Doppler domain is performed. Since the Doppler center-frequency and Doppler bandwidth are related with different geometric models, this paper gives particular emphasis on analyzing Doppler information of different targets at the same range under parallel model. At last ,RD and BP algorithm application characteristics in Bistatic SAR are discussed and the simulation experiments under parallel model were taken.
出处
《压电与声光》
CSCD
北大核心
2005年第3期312-315,共4页
Piezoelectrics & Acoustooptics
