火控雷达技术
火控雷達技術
화공뢰체기술
FIRE CONTROL RADAR TECHNOLOGY
2011年
4期
19-24
,共6页
压缩感知(CS)%SAR%正交匹配追踪(OMP)%贝叶斯压缩感知(BCS)
壓縮感知(CS)%SAR%正交匹配追蹤(OMP)%貝葉斯壓縮感知(BCS)
압축감지(CS)%SAR%정교필배추종(OMP)%패협사압축감지(BCS)
compressive sensing (CS)%SAR%orthogonal matching pursuit (OMP)%Bayesian compressive sensing (BCS)
以减少SAR成像所需数据量,缩短成像时间为目的,本文构建了深度欠采样回波信号的模型,提出了一种二维脉冲压缩算法,该算法利用OMP和BCS算法对欠采样回波做距离向和方位向压缩,实现了二维SAR快速成像。通过对点目标模型SAR回波的仿真验证了方案的有效性。
以減少SAR成像所需數據量,縮短成像時間為目的,本文構建瞭深度欠採樣迴波信號的模型,提齣瞭一種二維脈遲壓縮算法,該算法利用OMP和BCS算法對欠採樣迴波做距離嚮和方位嚮壓縮,實現瞭二維SAR快速成像。通過對點目標模型SAR迴波的倣真驗證瞭方案的有效性。
이감소SAR성상소수수거량,축단성상시간위목적,본문구건료심도흠채양회파신호적모형,제출료일충이유맥충압축산법,해산법이용OMP화BCS산법대흠채양회파주거리향화방위향압축,실현료이유SAR쾌속성상。통과대점목표모형SAR회파적방진험증료방안적유효성。
Abst For the purpose of reducing the amount of data required by synthetic aperture radar (SAR) imaging and shortening imaging time, a 2-D pulse compression algorithm is proposed based on constructing of deep under-sampled echo signal model. In this algorithm, orthogonal matching pursuit (OMP) and Bayesian compressive sensing (BCS) algorithms are applied for range profile and azimuth profiles compression, so as to obtain 2-D fast SAR imaging. The effectiveness of the scheme is verified via simulation by using SAR echoes of point target model.