粗差修复的常变量估算方法探讨  

Discussion on constant variable calculation algorithm for gross error recovery

作　　者：宁亚飞[1,2] 袁运斌[1] 

机构地区：[1]中国科学院测量与地球物理研究所大地测量与地球动力学国家重点实验室,武汉430077 [2]中国科学院大学,北京100049

出　　处：《测绘科学》2015年第7期21-23,40,共4页Science of Surveying and Mapping

基　　金：国家973计划项目(2012CB825604);国家863计划项目(2012AA121803);国家自然科学基金项目(41231064;41304034;41174015;41104012;41021003)

摘　　要：针对粗差定位后的修复问题,该文提出了一种估算模式:首先研究出粗差与参数平差值的准确函数关系,在此基础上,通过在原有观测方程中引入常数作为自变量,研究此常数变量平差后的变化值,来定位观测值的粗差并反推粗差的最可靠值。通过和传统方法对比,本算法具有精确度高、收敛快、可靠性强等优点,在观测值粗差定位模糊的情况下,依然可以获得较为理想的处理结果。Aiming at the reparation of gross errors after being located, the paper presented a calculation method： firstly, the accurate relationshi Pbetween the gross errors and the parameters adjustment was studied, then, by introducing the constant into the observation equation as independent variables, analyzed the the changes of the constant variable after adjustment to locate the gross errors of observation and reverse the reliable result of the gross errors. Finally, by comparing with traditional methods, it was shown that this algorithm could achieve good processing consequence even when the location of the gross errors of observation is ambiguous, with the advantages of high accuracy, fast convergence, high reliability and so on.

关 键 词：粗差修复 函数关系 固定变量 模糊定位 

分 类 号：P207[天文地球—测绘科学与技术]