利用光电经纬仪修正地基红外搜索跟踪系统静态误差的方法  

Method of correcting the static error of infrared search and track system by using photoelectric theodolite

作　　者：彭晨[1] 陈钱[1] 钱惟贤[1] 

机构地区：[1]南京理工大学近程高速目标探测技术国防重点学科实验室,江苏南京210094

出　　处：《红外与激光工程》2012年第10期2791-2794,共4页Infrared and Laser Engineering

基　　金：江苏省自然科学基金(BK2011699);江苏省"六大人才高峰"计划支持(12010-DZXX-022)

摘　　要：为了提高红外搜索跟踪系统对目标的定位精度,提出了一种利用光电经纬仪修正地基红外搜索跟踪系统的静态误差方法。首先根据地基红外搜索跟踪系统的跟踪机架的三轴结构,分析了系统静态误差的主要来源,并得出了系统静态误差的数学模型;再使用高精度的光电经纬仪与红外搜索跟踪系统同时测量多个相同的远处固定目标,得到两组测量数据并输入误差模型,采用最小二乘法拟合出误差模型系数。根据误差模型系数计算出红外搜索跟踪系统的系统静态误差,再在观测数据中将系统静态误差减去,最终完成系统静态误差的修正。最后给出了对某型号红外搜索跟踪系统进行静态误差测量修正的实验结果。In order to improve the precision of infrared search and track system （IRST）, a method of correcting the static error of IRST by using photoelectric theodolite was proposed. According to the tri- axes structure of IRST tracking frame, the main sources of the static error were analyzed, and the mathematical model of this error was established. By using high-precision photoelectric theodolite and IRST to measure the same multiple distant fixed targets, two sets of measurement data were obtained and inputted into the error model, then the coefficients of error model were fitted with the least-squares method. The static error of IRST was calculated according to the coefficients of the error model. Finally the static error was corrected by subtracting it from the observational data of IRST. Experimental results of measuring and correcting the static error of some 1RST were proposed.

关 键 词：红外搜索跟踪系统 系统误差 最小二乘法 

分 类 号：TP732.2[自动化与计算机技术—检测技术与自动化装置]