Analysis and study on influence factors of target geo-locating accuracy for electro-optical reconnaissance system
Keywords:
Electro-optical reconnaissance system, Error model, Inertial navigation system, Target geo-locating, Transfer of axesAbstract
Taking the airborne platform as the research object,firstly based on analyzing the principle of the photoelectric reconnaissance system to achieve the target geo-location, the main factors affecting the target geo-location accuracy of the photoelectric reconnaissance system are obtained: the electro-optical reconnaissance system position-error, azimuth-error, attitude-error and the distance from system to target, etc. Secondly the target geo-locating error model for electro-optical reconnaissance system are educed. Analysis and emulation for the relationship among target geo-locating accuracy and azimuth-error, attitude-error indicate that azimuth-error, pitch-error of electro-optical reconnaissance system are the uppermost factors which affect the target geo-locating accuracy,and it is reasonable for the inertial navigation that the azimuth-error is oontrolled in 0.02°~0.5°,the attitude-error is controlled in 0.01°~0.25°. Finally, some suggestions to improve the target geolocation accuracy are put forward. © 2018, Editorial Board, Journal of Applied Optics. All right reserved.
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