摘要
高速铁路CPⅢ平面控制网的观测量较大且对精度要求极高,对观测量进行粗差探测是十分必要的。根据CPⅢ平面控制网的网形特点,利用误差传播理论,推导出纵横向公共边检核条件和纵向附合图形检核条件,并提出其限差的建议值,作为CPⅢ平面控制网的质量标准。基于检核条件可探测观测值中的粗差,可提高CPⅢ平面控制网的精度和可靠性。
Field measurements in the CPⅢ plane control network for high speed railway is characterized as large quantity and high precision requirement. Therefore, it is very necessary to detect the gross errors of field measurement. Based on the form characteristics of the CPⅢ plane control network and by the use of error propagation theory, we derived the check conditions of longitudinal and transversal common - edge and longitudinal connected map and the limited error is suggested as quality＂ standard for CPⅢ plane control network . It is concluded that the gross error can be detected based on the check condition, which can improve the accuracy and reliability of CPⅢ plane control network.
出处
《人民长江》
北大核心
2010年第11期51-53,105,共4页
Yangtze River
关键词
公共边检核条件
纵向附合检核条件
粗差探测
CPⅢ平面网
common - edge check condition
longitudinal connected check condition
gross error detection
CPⅢ plane controlnetwork
