CAJ | 학술논문

采用带限高斯噪声和同速率伪码相关信号对全球定位系统( GPS)/惯导系统( INS)超紧致耦合导航系统GPS军码接收机实施压制干扰。通过分析GPS P( Y)码和M码信号功率谱变化特点，对以上两种压制干扰进行信号参数的优化确定，进而计算出参数优化后的干扰信号造成GPS/INS超紧致耦合GPS军码接收机载波环路失锁时射频前端处所需的最小干扰功率。考虑干扰信号入射角与接收天线增益的关系，仿真得到不同高度干扰源发射功率与有效干扰距离的关系曲线。根据要地目标的防护需求，对不同制导武器所需的连续压制干扰作用距离进行定量分析，并在此基础上对沿来袭制导武器航路附近部署的多干扰源位置坐标和数量设置问题完成建模求解。
채용대한고사조성화동속솔위마상관신호대전구정위계통( GPS)/관도계통( INS)초긴치우합도항계통GPS군마접수궤실시압제간우。통과분석GPS P( Y)마화M마신호공솔보변화특점，대이상량충압제간우진행신호삼수적우화학정，진이계산출삼수우화후적간우신호조성GPS/INS초긴치우합GPS군마접수궤재파배로실쇄시사빈전단처소수적최소간우공솔。고필간우신호입사각여접수천선증익적관계，방진득도불동고도간우원발사공솔여유효간우거리적관계곡선。근거요지목표적방호수구，대불동제도무기소수적련속압제간우작용거리진행정량분석，병재차기출상대연래습제도무기항로부근부서적다간우원위치좌표화수량설치문제완성건모구해。
Band-limited Gaussian noise and pseudo code with the same rate signal are adopted to actualize blanket jamming to GPS military receiver of GPS/INS ultra-tight coupling navigation system. According to GPS P( Y) code and M code signal power spectrum change characteristic, above-mentioned two jamming signal parameters are optimized, the minimum jamming power causing GPS military receiver phase-locked loop( PLL) lock-lose is calculated on the receiver RF front-end. Then,in consideration of the relationship between jamming signal orientation and GPS receiver antenna gain, the curve between effective jamming range and transmitting power of jammer is obtained under different liftoff height. According to protective re-quirement of key targets, requisite uninterrupted blanket jamming effect distance to different type guided weapon is analyzed quantitatively,and location and number setting problem of multiple jammers deployed on the following path two-side are modeled and solved.