CAJ | 학술논문

对流层延迟误差是GPS定位中的一项重要的误差源，随着精密单点定位（PPP）技术的不断发展，该误差影响并制约着G PS精密单点定位精度的进一步提高。基于G PS观测值，比较分析了各种对流层投影函数模型对G PS精密单点定位精度的影响，得出了有益的结论。
대류층연지오차시GPS정위중적일항중요적오차원，수착정밀단점정위（PPP）기술적불단발전，해오차영향병제약착G PS정밀단점정위정도적진일보제고。기우G PS관측치，비교분석료각충대류층투영함수모형대G PS정밀단점정위정도적영향，득출료유익적결론。
Tropospheric delay is an important error source for GPS positioning .With the continuous improvement of Precise Point Positioning (PPP ) ,the error affects and restricts the further improvement of PPP accuracy .In this paper ,several tropospheric mapping func-tions are used to compare and analyze their influence on PPP solutions using GPS observa-tions .Some beneficial conclusions are draw n .