系统工程与电子技术
繫統工程與電子技術
계통공정여전자기술
SYSTEMS ENGINEERING AND ELECTRONICS
2014年
4期
661-666
,共6页
张静克%代大海%邢世其%肖顺平%李永祯
張靜剋%代大海%邢世其%肖順平%李永禎
장정극%대대해%형세기%초순평%리영정
合成孔径雷达%干涉合成孔径雷达%微动调制%干涉相位%多假目标
閤成孔徑雷達%榦涉閤成孔徑雷達%微動調製%榦涉相位%多假目標
합성공경뢰체%간섭합성공경뢰체%미동조제%간섭상위%다가목표
synthetic aperture radar (SAR)%interferometric synthetic aperture radar (InSAR)%micro mo-tion modulation%inteferometric phase%multiple false target
鉴于微动调制能够有效地对合成孔径雷达(synthetic aperture radar,SAR)进行干扰,研究基于微动调制干涉合成孔径雷达(interferometric synthetic aperture radar,InSAR)有源干扰方法。基于 InSAR 信号模型研究了微动调制干扰对 InSAR 的干扰原理,进一步分析了干扰效果与关键干扰参数之间的关系,并利用仿真进行了验证。研究表明,该干扰方法能够在 InSAR 图像中形成沿方位向分布的形似“连续的栅栏”或“离散的栅栏”的多假目标,“栅栏”的间隔和长度由微动调制参数决定,“栅栏”的高度由干扰机的高度和发射功率共同决定。
鑒于微動調製能夠有效地對閤成孔徑雷達(synthetic aperture radar,SAR)進行榦擾,研究基于微動調製榦涉閤成孔徑雷達(interferometric synthetic aperture radar,InSAR)有源榦擾方法。基于 InSAR 信號模型研究瞭微動調製榦擾對 InSAR 的榦擾原理,進一步分析瞭榦擾效果與關鍵榦擾參數之間的關繫,併利用倣真進行瞭驗證。研究錶明,該榦擾方法能夠在 InSAR 圖像中形成沿方位嚮分佈的形似“連續的柵欄”或“離散的柵欄”的多假目標,“柵欄”的間隔和長度由微動調製參數決定,“柵欄”的高度由榦擾機的高度和髮射功率共同決定。
감우미동조제능구유효지대합성공경뢰체(synthetic aperture radar,SAR)진행간우,연구기우미동조제간섭합성공경뢰체(interferometric synthetic aperture radar,InSAR)유원간우방법。기우 InSAR 신호모형연구료미동조제간우대 InSAR 적간우원리,진일보분석료간우효과여관건간우삼수지간적관계,병이용방진진행료험증。연구표명,해간우방법능구재 InSAR 도상중형성연방위향분포적형사“련속적책란”혹“리산적책란”적다가목표,“책란”적간격화장도유미동조제삼수결정,“책란”적고도유간우궤적고도화발사공솔공동결정。
Based on the fact that micro motion modulation can disturb synthetic aperture radar (SAR)effectively, an active jamming method for interferometric synthetic aperture radar (InSAR)is studied.Based on the signal models of InSAR signal processing,principles of the jamming are derived.Then,the relationship between key jamming pa-rameters and the effect is analyzed.Furthermore,the conclusion is verified via simultion.The result shows that the jamming method can produce multiple false targets along the azimuth direction in InSAR imagry,which appear as “con-tinuous barriers”or “discrete barriers”.The interval and length of the “barriers”rely on the paremeters of micro mo-tion modulation,and the height of the “barriers”depends on the height of the jammer and the jamming power.