火力与指挥控制
火力與指揮控製
화력여지휘공제
FIRE CONTROL & COMMAND CONTROL
2014年
7期
59-62
,共4页
合成孔径雷达%二维间歇采样%卷积调制干扰%二维卷积调制
閤成孔徑雷達%二維間歇採樣%捲積調製榦擾%二維捲積調製
합성공경뢰체%이유간헐채양%권적조제간우%이유권적조제
SAR%2-D intermittent sampling%convolution modulation jamming%2-D convolution modulation
SAR雷达二维间歇采样转发干扰可以在距离向和方位向同时形成假目标串,对SAR雷达具有良好的欺骗干扰效果,但该方法存在间歇采样转发干扰共同缺陷。针对SAR雷达二维间歇采样转发干扰的缺陷,提出了基于卷积调制的SAR雷达二维间歇采样转发干扰方法,即对二维间歇转发干扰信号进行距离向和方位向的二维卷积调制,通过选择参与卷积调制信号的形式,可以产生灵活可控的干扰效果,能够有效克服间歇采样转发干扰的缺陷,理论分析和仿真实验证明了该方法的可行性、有效性。
SAR雷達二維間歇採樣轉髮榦擾可以在距離嚮和方位嚮同時形成假目標串,對SAR雷達具有良好的欺騙榦擾效果,但該方法存在間歇採樣轉髮榦擾共同缺陷。針對SAR雷達二維間歇採樣轉髮榦擾的缺陷,提齣瞭基于捲積調製的SAR雷達二維間歇採樣轉髮榦擾方法,即對二維間歇轉髮榦擾信號進行距離嚮和方位嚮的二維捲積調製,通過選擇參與捲積調製信號的形式,可以產生靈活可控的榦擾效果,能夠有效剋服間歇採樣轉髮榦擾的缺陷,理論分析和倣真實驗證明瞭該方法的可行性、有效性。
SAR뢰체이유간헐채양전발간우가이재거리향화방위향동시형성가목표천,대SAR뢰체구유량호적기편간우효과,단해방법존재간헐채양전발간우공동결함。침대SAR뢰체이유간헐채양전발간우적결함,제출료기우권적조제적SAR뢰체이유간헐채양전발간우방법,즉대이유간헐전발간우신호진행거리향화방위향적이유권적조제,통과선택삼여권적조제신호적형식,가이산생령활가공적간우효과,능구유효극복간헐채양전발간우적결함,이론분석화방진실험증명료해방법적가행성、유효성。
2-D intermittent sampling repeater jamming to SAR can form multi-false targets in range and azimuth,so it can get good deceptiveness jamming effection,but it exists the common defect of intermittent sampling repeater jamming. In this paper a new method of 2-D intermittent sampling repeater jamming to SAR based on convolution modulation is proposed. The jammer receives the SAR signal and intermittent sample the singnal in 2-D ,then convolves it in 2-D with the expected video frequency signal. By choosing the type of convolution modulation signal,it can flexible and controled jamming effection,and it can overcome the defect of intermittent sampling repeater jamming. Theoretical analysis and computer simulation justify the validity and efficiency of this method.