基于Keystone变换的极窄脉冲距离走动校正  

Range Migration Compensation Method of Ultra-narrow Pulse Based on Keystone Transform

作　　者：刘峰[1] 李阳[1] 龙腾[1] 

机构地区：[1]北京理工大学雷达技术研究所,北京100081

出　　处：《弹箭与制导学报》2008年第6期253-256,共4页Journal of Projectiles,Rockets,Missiles and Guidance

基　　金：十一五总装精导基金资助

摘　　要：针对末制导雷达极窄脉冲相参波形,文中提出一种使用Keystone变换,完成在径向速度未知或不精确的情况下,对跨距离分辨单元走动的校正方法;使得在雷达与目标间存在大的径向速度时,目标各散射点回波具有较高相参积累增益。计算机仿真结果表明,该方法有效可行;在亚毫米波波段和毫米波波段的雷达导引头中有一定应用价值。According to the coherent signal modulated by ultra-narrow pulses in terminal radar seeker, a range migration compensation method was proposed based on Keystone transform without requiring any accurate velocity information. Therefore, the coherent integration gain was maintained. The simulation results demonstrate the validity of the proposed method. So it is very useful to submillimeter or millimeter wave radar seeker.

关 键 词：极窄脉冲相参序列 KEYSTONE变换 跨距离分辨单元走动 距离走动校正 

分 类 号：TN911.7[电子电信—通信与信息系统]