摘要
简要介绍了导航系统的两种χ2检验算法,分析给出了模型误差对两种故障检测算法影响的表达式,指出了在利用χ2检验算法进行故障检验时应注意的问题,最后利用模拟数据和实测数据分别计算比较了模型误差对两种χ2检验算法的影响。
Firstly, chi-square state residuals statistical hypothesis test and predicted residuals statistical hypothesis test are introduced. Then the expressions of the influence of model errors on two fault detection algorithms are given, and the existent problems in using chi-square statistical hypothesis test are emphasized. Finally, a simulated example is given to compare and analyze the influences of model errors on chi-square statistical hypothesis test.
出处
《测绘科学》
CSCD
北大核心
2009年第1期141-143,97,共4页
Science of Surveying and Mapping
基金
国家自然科学基金(40274002、40474001)
信息工程大学博士生创新基金
