| 摘要: |
| 点目标假设下，在二维圆概率偏差线性公式的基础上，给出了基于纵横向均方根误差分段的精确公式。同时应用概率论正态分布理论，对二维情况下均方根误差、圆概率偏差和概率偏差的相互关系进行了研究，通过理论推导和数值计算给出了二维精度指标相互转换的拟合公式，完善了满足工程应用的二维精度体系。研究结果可在精度指标的论证、设计和考核中使用。 |
| 关键词: 点目标 精度体系 关系研究 |
| DOI： |
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| 基金项目:国家自然科学基金（11372054） |
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| Research on Two-Dimensional Dispersion Index System Under the Point Target Hypothesis |
| WANG Zhi,WANG Peng,HE Lei,BAI Wenlu,XIA Chuan |
| (Beijing Institute of Astronautical Systems Engineering, Beijing 100076, China) |
| Abstract: |
| On the basis of the linear formula of the two-dimensional circular error probable under the hypothesis of the point target, an accurate formula based on the segmentation of root mean square error in both longitudinal and lateral directions was given. The relationship of root mean square error,circular error probable,probable deviation was researched by applying distribution theory of normal dispersion function of probability theory, a fitting formula for the conversion of two-dimensional accuracy indicators was provided through theoretical derivation and numerical calculation, and the dispersion index system approaching to the requirements of actual engineering application was consummated. This research can instruct the demonstration,designing and checking on dispersion index. |
| Key words: Point target Dispersion index Relationship research |