基于窄脉冲的脱靶量测量误差补偿算法

Error Compensation Algorithm of Miss Distance Measurement Based on Narrow Pulse

在利用基于窄脉冲的单通道测量系统进行标量脱靶量测量时,由于收发天线必须分置而导致冲激雷达系统具有较大的系统误差,从而对标量脱靶量等参数的估计精度带来影响。文中针对该误差提出了一种补偿算法,在单通道测量系统的基础上,增加一接收天线通道,利用目标散射点与双通道接收天线、发射天线所构平面中的三角关系对系统误差进行补偿。仿真结果表明,该误差补偿算法可以极大地改善系统测量精度,进而提高标量脱靶量等参数的估计精度。

The single sensor of impulse radar system can be used to measure scalar miss distance.Because the impulse radar system needs receiving/transmitting separation,the system has serious measurement error.The error results in imprecise estimation of miss distance.This paper presents an error compensation algorithm aiming at this system error.The impulse radar system adds a receiving antenna.The algorithm uses the triangle relation among target and dual sensor and transmitting antenna to reduce system error.Simulation results show the algorithm can improve precision of measurement value greatly.Then the estimation precision of scalar miss distance can also be improved.