光电工程
光電工程
광전공정
OPTO-ELECTRONIC ENGINEERING
2014年
6期
51-55,74
,共6页
张玉碟%柳万胜%罗一涵%钟代均
張玉碟%柳萬勝%囉一涵%鐘代均
장옥설%류만성%라일함%종대균
指向误差%三轴光电跟踪系统%轴系误差%四元数
指嚮誤差%三軸光電跟蹤繫統%軸繫誤差%四元數
지향오차%삼축광전근종계통%축계오차%사원수
pointing error%three-axis optoelectronic tracking system%axis error%quaternion
为了提高三轴光电跟踪系统的指向精度，针对三轴光电跟踪系统的光机结构提出了一种具有明确物理意义的指向误差修正模型。首先，根据四元数的旋转变化方法详细分析了各轴系误差对空间目标指向误差的映射关系表达式，然后，通过这些关系式建立三轴光电跟踪系统的指向误差修正模型。实验结果表明，该方法可以将有效的修正系统指向误差，且外符合修正精度高于球谐函数指向误差修正模型，同时该方法在装配调试阶段对预估指向精度具有一定的参考指导作用。
為瞭提高三軸光電跟蹤繫統的指嚮精度，針對三軸光電跟蹤繫統的光機結構提齣瞭一種具有明確物理意義的指嚮誤差脩正模型。首先，根據四元數的鏇轉變化方法詳細分析瞭各軸繫誤差對空間目標指嚮誤差的映射關繫錶達式，然後，通過這些關繫式建立三軸光電跟蹤繫統的指嚮誤差脩正模型。實驗結果錶明，該方法可以將有效的脩正繫統指嚮誤差，且外符閤脩正精度高于毬諧函數指嚮誤差脩正模型，同時該方法在裝配調試階段對預估指嚮精度具有一定的參攷指導作用。
위료제고삼축광전근종계통적지향정도，침대삼축광전근종계통적광궤결구제출료일충구유명학물리의의적지향오차수정모형。수선，근거사원수적선전변화방법상세분석료각축계오차대공간목표지향오차적영사관계표체식，연후，통과저사관계식건립삼축광전근종계통적지향오차수정모형。실험결과표명，해방법가이장유효적수정계통지향오차，차외부합수정정도고우구해함수지향오차수정모형，동시해방법재장배조시계단대예고지향정도구유일정적삼고지도작용。
In order to modify the pointing error of three-axis optoelectronic tracking systems, a new method based on the optical-mechanical structure of three-axis systems was proposed. Firstly, related equations which show the impaction of axis errors to the pointing error of spatial target were analyzed based on the rotation transform theory of quaternion. Then, a new modification model of three-axis optoelectronic tracking system was obtained thought all the different equations. Experimental results show that the method can reduce the pointing error effectively, and the exterior-error modified capability of this method is higher than spherical-function modification model. At the same time, the method would have a certain reference guide to estimate the pointing precision during assemblage and debugging.
