%0 Journal Article
%T Using ADSP21062 based hgh-speed signal processing system to implement azimuth processing of real-time imager for airborne SAR<br>用ADSP21062高速信号处理系统实现机载SAR实时成像处理器的方位向处理
%A Yu Weidong
%A Wu Shumei
%A <br>禹卫东
%A 吴淑梅
%J 电子与信息学报
%D 2002
%I 
%X Real-time Imager can provide Synthetic Aperture Radar(SAR) image in real-time mode which is significant for airborne SAR applications such as real-time monitoring and battle reconnaissance. A SAR real-time imager usually implements SAR imaging algorithms with high-speed DSP system. This paper describes a high-speed DSP system based on ADSP21062 to realize azimuth processing with range-Doppler algorithm, consisting of range migration correction and azimuth compression. 8 ADSP21062s are organized in 4 parallel processing blocks in this system achieving a processing speed of 960MFLOP. Elaborate software programming ensures a high efficient utilization of hardware. Experimental simulation and field flight indicate this system is successful. The principle architecture, hardware implementation and software design are presented in this paper in details.
%K Synthetic aperture radar
%K Real-time imager
%K DSP<br>ADSP21062
%K 机载SAR
%K 方位向处理
%K 合成孔径雷达
%K 实时成像处理器
%K 数字信号处理
%U http://www.alljournals.cn/get_abstract_url.aspx?pcid=5B3AB970F71A803DEACDC0559115BFCF0A068CD97DD29835&cid=1319827C0C74AAE8D654BEA21B7F54D3&jid=EFC0377B03BD8D0EF4BBB548AC5F739A&aid=89C6F40B3821DCA6&yid=C3ACC247184A22C1&vid=B91E8C6D6FE990DB&iid=5D311CA918CA9A03&sid=CF89D3C02791C82E&eid=008520E0B52E94B3&journal_id=1009-5896&journal_name=电子与信息学报&referenced_num=1&reference_num=6