红外与激光工程
紅外與激光工程
홍외여격광공정
INFRARED AND LASER ENGINEERING
2013年
8期
2003-2007
,共5页
激光指向精度%后向散射%光尖测量%误差修正
激光指嚮精度%後嚮散射%光尖測量%誤差脩正
격광지향정도%후향산사%광첨측량%오차수정
laser pointing accuracy%backward scattering%beam tip measurement%error correction
为提高激光跟踪发射系统激光发射指向精度，提出了一种通过测量发射激光后向散射光尖来修正激光发射指向误差的方法。在介绍系统光机结构及后向散射相关理论的基础上详细论述了光尖探测距离与视差的关系，根据天气情况和长期测量经验获得良好天气、中等天气和较差天气三种天气状况下光尖探测距离，进一步得出三种天气状况下视差修正量。在良好天气状况下，利用预定空间轨迹误差修正方式进行实验验证，对比光束后向散射法与靶板测量法所测得的激光发射指向精度，在预定的空间轨迹上两者测量误差为2.5"，实验证明，利用光束后向散射法可以大大提高激光发射的指向精度。
為提高激光跟蹤髮射繫統激光髮射指嚮精度，提齣瞭一種通過測量髮射激光後嚮散射光尖來脩正激光髮射指嚮誤差的方法。在介紹繫統光機結構及後嚮散射相關理論的基礎上詳細論述瞭光尖探測距離與視差的關繫，根據天氣情況和長期測量經驗穫得良好天氣、中等天氣和較差天氣三種天氣狀況下光尖探測距離，進一步得齣三種天氣狀況下視差脩正量。在良好天氣狀況下，利用預定空間軌跡誤差脩正方式進行實驗驗證，對比光束後嚮散射法與靶闆測量法所測得的激光髮射指嚮精度，在預定的空間軌跡上兩者測量誤差為2.5"，實驗證明，利用光束後嚮散射法可以大大提高激光髮射的指嚮精度。
위제고격광근종발사계통격광발사지향정도，제출료일충통과측량발사격광후향산사광첨래수정격광발사지향오차적방법。재개소계통광궤결구급후향산사상관이론적기출상상세논술료광첨탐측거리여시차적관계，근거천기정황화장기측량경험획득량호천기、중등천기화교차천기삼충천기상황하광첨탐측거리，진일보득출삼충천기상황하시차수정량。재량호천기상황하，이용예정공간궤적오차수정방식진행실험험증，대비광속후향산사법여파판측량법소측득적격광발사지향정도，재예정적공간궤적상량자측량오차위2.5"，실험증명，이용광속후향산사법가이대대제고격광발사적지향정도。
In order to correct laser beam pointing error for the high accuracy tracking and lasing system, a laser beam tip measurement method of laser backward scattering was developed. Firstly, the opto-mechanical structure and the backward scattering theory were introduced, and the relationship between detect distance of laser beam tip and binocular parallax was analysed. Secondly, based on the long time observation, the detect distances of laser beam tip in good weather condition, medium weather condition and bad weather condition were obtained respectively. Finally, the validating experiment of laser beam tip measurement method by targeting method in predetermined orbit was carried out in good weather condition. The difference of two methods was 2.5", which indicates that laser beam pointing accuracy could be improved greatly by the laser beam tip measurement method.
