Study on a original criteria system for environment quality assessment of human settlements and its (feasibility) in water net plain areas;
水网平原区人居环境质量评价指标体系及其可行性研究
Applicationn of Network Adjustment to the GPS Common View Time Links for TAI Computation;
网平差在TAI计算中的应用
An additional-range and precise GPS network adjustment method;
加入边长的严密GPS网平差模型
The numerical partial derivative is introduced to simplify the GPS network adjustment model.
采用数值微商求偏导数的方法，从而使ＧＰＳ网平差的计算模型非常简洁。
Study on teaching program in pipe net works;
管网平差教学程序开发初探
With the theories of cartography,geodesy and the method of GPS network adjust,take the gui-guang direct-current 500kV electric transmission line project as a case,the problem which the differential distantence value between electronic distance and GPS distance in long linear surveying are too big has been solved by using the Lambert projection.
应用地图投影学、大地测量学及GPS网平差理论,针对超长线路测量中实测桩间距离与GPS反算边长较差过大的问题,结合贵广直流500千伏送电线路工程实例,给出了用Lambert等角切圆锥投影解决该问题的方法。
According to the demand of engineering surveying,With the theory of geodesy and the method of gps network adjust,This paper discusses how to minimize the scale error of gauss projection and datum plane reduction by changing the side scale when we adjust the engineering gps network.
根据工程勘测的需要,应用大地测量学及GPS网平差理论,结合实例,探讨运用边长尺度比来有效消除GPS网平差中高斯投影及高程归化变形的计算方法。
This article introduces the plan of the Shenzhen metro line 3 overall,including GPS control net design?field observation?baseline vector procession ?control net adjustment and precision analysis and reliability test etc.
本文全面介绍了深圳地铁三号线GPS平面控制网的布设方案,包括GPS控制网技术设计、外业观测、基线向量解算、控制网平差及精度分析和可靠性检验等。
This paper focuses on the comparison and analysis of baselines′ processing and GPS network adjustment with.
在进行GPS网平差时,两种软件在同种情况下的平差结果也有所差别。
This paper focuses the study of GPS network adjustment theory firstly, and then makes a.
同时,在进行GPS网平差时,选取GPS基线的方式及数量的不同,构造的网形也就不同,采用不同的数学模型其得到的平差结果和精度指标也不相同。