摘要
在文献[1]研究的理论背景下,研究将文献[1]中方法运用于GPS控制网中时需要解决的关键问题-获取基线偏差小于0.7m的基线初始值。为此,对简单伪距双差,精密星历伪距双差和载波相位平滑伪距双差进行了分析。用自编软件解算了实测基线,得出3种方法在15min时间内都可以获得偏差小于0.7m的基线向量初始值,其中载波相位平滑伪距双差的结果最理想。
On the basis of reference ＇ s research result, this paper mainly puts attention on a sticking point - the approximate baseline vector ＇ s precision need exceed 0.7m when the new method used in GPS network. In order to obtain the qualified approximate baseline vector, this paper uses three methods ： the simple difference of code Pseudoranges , the difference of carrier phase smoothing code Pseudoranges and the difference of code Pseudoranges under IGS （ International GPS Service） Ultra - rapid precise ephemeris. This paper analyzes the result from those methods.
出处
《上海地质》
2008年第2期43-46,66,共5页
关键词
伪距双差
精密星历
载波相位平滑伪距
the difference of pseudoranges, precise ephemeris, carrier phase smoothing code Pseudoranges
