影响光电侦察系统目标定位精度因素分析 |
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引用本文: | 马忠孝,巩全成,陈颖,王惠林. 影响光电侦察系统目标定位精度因素分析[J]. 应用光学, 2018, 39(1): 1-6. DOI: 10.5768/JAO201839.0101001 |
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作者姓名: | 马忠孝 巩全成 陈颖 王惠林 |
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作者单位: | 西安应用光学研究所, 陕西 西安 710065 |
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摘 要: | 以机载平台作为研究对象,通过分析光电侦察系统实现目标地理定位的原理,得出影响光电侦察系统目标地理定位精度的主要因素,即系统的位置误差、姿态误差、航向误差及侦察系统距被测目标的距离等,推导出了光电侦察系统对目标地理定位的误差模型。对目标定位精度与光电侦察系统的航向误差、姿态误差关系的分析和仿真结果表明,光电侦察系统的航向和俯仰角精度是最关键的因素,惯导系统的航向误差控制在0.02°~0.5°,姿态误差控制在0.01°~0.25°之间较为合理,最后提出了提高目标地理定位途径的建议。
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关 键 词: | 光电侦察系统 惯性导航系统 目标地理定位 坐标系转换 误差模型 |
收稿时间: | 2017-08-06 |
Analysis and study on influence factors of target geo-locating accuracy for electro-optical reconnaissance system |
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Affiliation: | Xi'an Institute of Applied Optics, Xi'an 710065, China |
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Abstract: | 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. |
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