弹载地磁测量系统的抗干扰设计  

The Antijam Design of Magnetic Measurement System of Spinning Missile

作　　者：白松[1] 曹红松[1] 张宪国[1] 才晓峰[2] 

机构地区：[1]中北大学弹箭模拟仿真研究中心 [2]中国人民解放军91851部队

出　　处：《传感技术学报》2014年第7期928-932,共5页Chinese Journal of Sensors and Actuators

基　　金：兵科院支撑基金(62201070503)

摘　　要：为了消除弹载地磁测量系统所受的矿山、电磁、金属等干扰,本文设计了充磁电路,消除强磁场对磁阻传感器的干扰;设计了滤波电路及合理的布线,消除高频干扰信号;再提出了误差识别补偿及看门狗设置算法,补偿了软硬磁干扰、零位误差、正交误差。转台试验与数据分析表明:各组合方法的采用,减少了干扰误差使姿态角测量精度达到1°以内,具有一定的工程价值。In order to eliminate the rock,electromagnetism field and metal field interference on the spinning missile. This paper design a set/reset cuicurt to protect the MR sensor from the jam of strong magnetic field and design a flitter circuit,rational layout to protect real signal from the jam of high frequency signal and promoted a error compensation and watchdog algorithm to compensate the soft/hard material error, zero error and orthogonal error. The result of rotating platform test and data analysis show that the method of antijam design combination reduce the jam error and the precision of rotation angle measure system can be improved to 1 ° . It has a certain project value for the roll angle measurement of the spinning projectile.

关 键 词：磁阻式传感器 抗干扰 充磁电路 滤波电路 误差补偿 

分 类 号：TN973.3[电子电信—信号与信息处理]