【摘要】：面向光學(xué)衛(wèi)星觀測平臺的視線測量精度需求,研究了一種基于區(qū)間分析理論的誤差分配方法.基于先進(jìn)的衛(wèi)星、轉(zhuǎn)臺、相機(jī)結(jié)構(gòu),建立了慣性系下空間相機(jī)與目標(biāo)間的視線矢量測量模型及測量誤差模型.根據(jù)區(qū)間分析理論,給出了誤差靈敏度的評價方法.根據(jù)星載觀測平臺的工作空間,得到了各項(xiàng)誤差源在三個軸向上的全域最大靈敏度.以全域最大靈敏度為權(quán)重系數(shù),建立了星載觀測平臺視線測量的誤差分配模型,通過遺傳算法將13項(xiàng)誤差源的可行區(qū)間松弛致最大.Monte Carlo仿真驗(yàn)證了該誤差分配方法的有效性,該方法也同樣適用于機(jī)載、車載等觀測平臺的誤差分配研究.
[Abstract]:An error allocation method based on interval analysis theory is studied to meet the requirement of line of sight measurement accuracy of optical satellite observation platform. Based on the advanced satellite, turntable and camera structure, the measurement model and measurement error model of the line of sight vector between the space camera and the target under the inertial frame are established. According to the theory of interval analysis, the evaluation method of error sensitivity is given. According to the workspace of the spaceborne observation platform, the global maximum sensitivity of each error source on three axes is obtained. Taking the maximum sensitivity of the whole region as the weight coefficient, the error allocation model for the line-of-sight measurement of the spaceborne observation platform is established. The validity of the error allocation method is verified by the simulation of the maximum relaxation of the feasible range of 13 error sources by genetic algorithm. The method is also applicable to the research of error allocation for airborne and vehicular observation platforms.
【作者單位】： 裝備學(xué)院研究生管理大隊(duì);裝備學(xué)院航天指揮系;
【基金】：部委資助項(xiàng)目
【分類號】：P171
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本文編號：2207039