不同组网形式下的GPS约束平差效果分析  

Effect Analysising of GPS Constrained Adjustment Based on Different Network Structure

作　　者：赵晓阳[1] 黄张裕[1] 李亚[1] 辛大鹏[1] 陈尚登 

机构地区：[1]河海大学地球科学与工程学院,南京市210098

出　　处：《勘察科学技术》2016年第2期20-21,60,共3页Site Investigation Science and Technology

摘　　要：现今,GPS技术已广泛应用于测绘的各个领域。然而在实际测量中,由于受到观测条件的限制,需要根据现场情况进行GPS网型的布设,且不同的网型结构得到的定位精度也有所不同。为了探讨GPS网型结构与点位精度的关系,该文根据GPS测量实验,分别采用不同的基线向量,构成不同的网型结构,分别进行约束平差,并将各网型的点位平差结果进行对比分析,从而得到了一些有益的结论,为GPS生产实践得到更好的点位精度提供了参考。At present,the GPS technology has been widely used in the field of surveying and mapping.However in the actual measurement,due to the limitation of observing conditions,the GPS network distribution need amid at the actual situation,and the positioning precision is different with which is obtained by different network structures. In order to discuss the relationship between GPS network structure and point precision,this paper amid at the measurement experiment,using the different baseline vector,the different network structure is built,the constrained adjustment is made,and each point position adjustment results are compared and analysed. Through this some useful conclusions are obtained. It provides reference for better point position precision for GPS procuction practice.

关 键 词：GPS 网型结构 定位精度 

分 类 号：P228.4[天文地球—大地测量学与测量工程]