摘要
三轴光电跟踪系统不存在空间跟踪盲区,为了提高系统引导或轨道测量精度,需要修正其系统误差。最小二乘系统误差修正方法精度较低,球谐函数系统误差修正有较高的修正精度,球谐函数系统误差修正方法应用到三轴光电跟踪系统中时存在困难。理论分析指出,应用球谐函数的系统误差修正需要在三轴光电跟踪系统中针对不同的方位建立多组修正参数。仿真表明,三轴光电跟踪系统中通过建立多组修正参数的球谐函数系统误差修正方法可以把系统误差降低到原来的30%。
Three-axis optoelectronic tracking system has no blind region in space. Correction of the system errors of three-axis optoelectronic tracking system can improve the leading precision and measure precision. Although least squares system error modification method has lower precision than global-function method, it is difficult for three-axis optoelectronic tracking system to use global-function system error modification method. Theoretical analysis proves that many groups of modification parameters need obtaining when using global-function system error modification method in three-axis optoelectronic tracking system. Simulation also demonstrates that the error modification method of building many groups of modification parameters of global-function in three-axis optoelectronic tracking system can reduce system error about 70%.
出处
《光电工程》
EI
CAS
CSCD
北大核心
2007年第12期1-5,27,共6页
Opto-Electronic Engineering
基金
863高技术课题
重庆市教委基金资助项目(KJ070508)
关键词
光电跟踪
系统误差
球谐函数
三轴跟踪架
optoelectronic tracking
system errors
global-function
three-axis gimbal
