附有基线长度约束的模糊度快速解算方法  

Fast Ambiguity Resolution with the Baseline Length Constraint

作　　者：王振杰[1] 乔永杰 

机构地区：[1]中国石油大学(华东)地球科学与技术学院,山东青岛266555

出　　处：《全球定位系统》2013年第2期19-22,共4页Gnss World of China

摘　　要：在超短基线数据处理中,基线长度可以通过钢尺精确测量,把基线长度作为约束条件,提出了一种附有基线长度约束的快速解算模糊度的搜索新方法。根据双差观测方程得出模糊度浮点解,在浮点解周围建立模糊度搜索空间,利用基线长度约束条件搜索模糊度整数解,进而快速确定基线解。通过一个算例展示该方法的效果。In the short baseline GPS data processing, the baseline length can be exactly obtained using the steel ruler. Taking the baseline length as a constraint, a fast ambiguity resolution method is investigated to determine the accurate integer ambiguities in this paper. The float ambiguity solutions are obtained in the light of the double difference equations, based on which the integer search space is established and the integer ambiguities could be fixed correctly. Finally, an example data is taken to illustrate the effect of the new method.

关 键 词：短基线GPS定位 基线长度约束 模糊度浮点解 模糊度 

分 类 号：P228[天文地球—大地测量学与测量工程]