航天控制
航天控製
항천공제
AEROSPACE CONTROL
2009年
6期
75-78,82
,共5页
捷联惯组%历次测试数据%最大熵法%验前分布%小样本
捷聯慣組%歷次測試數據%最大熵法%驗前分佈%小樣本
첩련관조%력차측시수거%최대적법%험전분포%소양본
SIMU%Successive test data%Maximum entropy method%Prior distribution%Small sample
研究在验前信息贫乏的情况下,使用异源验前信息确定捷联惯性测量组合(简称捷联惯组)历次测试数据验前分布的方法.将熵的概念引入验前分布的研究中,研究了在小样本条件下通过最大熵法确定捷联惯组历次测试数据验前分布的方法.研究结果表明这种方法能够准确有效地揭示捷联惯组历次测试数据的统计特性,克服了验前信息不足带来的统计分析误差,有效的提高了统计分析的质量.
研究在驗前信息貧乏的情況下,使用異源驗前信息確定捷聯慣性測量組閤(簡稱捷聯慣組)歷次測試數據驗前分佈的方法.將熵的概唸引入驗前分佈的研究中,研究瞭在小樣本條件下通過最大熵法確定捷聯慣組歷次測試數據驗前分佈的方法.研究結果錶明這種方法能夠準確有效地揭示捷聯慣組歷次測試數據的統計特性,剋服瞭驗前信息不足帶來的統計分析誤差,有效的提高瞭統計分析的質量.
연구재험전신식빈핍적정황하,사용이원험전신식학정첩련관성측량조합(간칭첩련관조)력차측시수거험전분포적방법.장적적개념인입험전분포적연구중,연구료재소양본조건하통과최대적법학정첩련관조력차측시수거험전분포적방법.연구결과표명저충방법능구준학유효지게시첩련관조력차측시수거적통계특성,극복료험전신식불족대래적통계분석오차,유효적제고료통계분석적질량.
This paper mainly discusses the prior distribution of strapdown inertial measurement unit (SIMU) successive test data. The definition of entropy method is introduced to the study of the prior distribution of SIMU , and the methods of establishing prior distribution with the small sample testing environment are discussed and presented. Study shows that this method can exactly and effectively reveal the statistical characteristic of SIMU successive test data. All the statistical inferences are carried out based on the posterior distribution. It can greatly reduce the statistical analysis error to apparently promote the quality of service in the case of small sample.