應用GPS載波相位餘弦模式於衛星測量之研究

Research On The Application Of GPS Carrierphase Cosine Functions To Satellite Surveying

游豐吉(Fong-Gee Yiu)

《航測及遙測學刊》 5卷1期 (2000/03) Pp. 33-53

https://doi.org/10.6574/JPRS.2000.5(1).4

摘要

欲進行高精度GPS衛星定性，必須處理載波相位觀測量， 有兩種法則可資應用: 一為相(立模稜參數求定，另一則以三角函數將整數模稜參數消去。本文由相位模稜消去方面入手，探討相位餘弦模式。除比較此法與相位模稜搜尋之異間，並詳細討論相位餘弦模式之理論與特性。將本模式應用於衛星高程測量，證明其精度可符合二等水準測量之規範。此外，可一併求定對流層與電離層影響量。此法可應用動態定位， 其求解成果與模稜求定成果相當。最後則設計多主站之相位餘弦模式。

關鍵字

相位模稜 ； 最小二乘技術 ； 相位餘弦模式

並列摘要

For high-precision GPS satellite positioning, Carrier phase observables must be processed. There are two algorithms to follows. One is to determine the correct phase ambiguity parameters, the other uses the trigonometric functions to eliminate the integer ambiguity parameters. The purpose of this paper is to establish a set of model, namely cosine function models of carrier phases. This paper begins with cosine function models of carrier phases, and compares the differences between the method and phase ambiguity resolution. A detailed discussion concerning the characteristics of cosine function models of phases is offered, it can be applied to satellite leveling with proof of fulfilling the accuracy requirement of second-order class II leveling. Besides, this model helps us to estimate the path delays of tropospheric as well as ionospheric altogether. Kinematic positioning can be applied with this model with such an achievement equivalent to that of ambiguity resolution. The last part of this paper contributes to designing the cosine function models of phases with muti-refference station.

並列關鍵字

Phase ambiguity ； Least square technique ； cosine function models of carrier phases