摘要
利用熵值方法,从信息论的观点出发,根据各自单项估计方法估计误差序列的变异程度,借助信息熵的概念,确定估计加权系数。其基本思想是,若某个单项估计模型误差序列的变异程度越大,则其在组合估计中对应的权系数就越小。在外弹道数据处理中,就是通过单台设备的熵权情况,评价其在外弹道数据处理中贡献大小,同时也可以通过数据组合估计提高数据处理精度。
By using entropy evaluation method and information theory, the weight coefficients have been confirmed according to variation of estimating error serial of single method. The basic idea is, the larger the variation, the samller the weight coefficients. In the course of exterior ballistic data processing, the contribution of a single equipment to the exterior ballistic data processing is evaluated based on the entropy of that equipment. Also, data processing precision can be improved by using combination evaluation methods.
出处
《载人航天》
CSCD
2010年第3期33-36,共4页
Manned Spaceflight
关键词
熵值
权值匹配
弹道计算
数据分析
Entropy Evaluation
Weight Matching
Trajectory Compute
Data Analysis
