高壓電場環境對GPS定位精度影響之測試

Tests of GPS Positioning under High-Voltage Power Environment

李安邦(A. B. Lee) ； 張嘉強(C. C. Chang)

《地籍測量：中華民國地籍測量學會會刊》 21卷2期 (2002/06) Pp. 1-13

https://doi.org/10.29609/YYWYLL.200206.0001

摘要

在考量高壓電場環境可能對GPS精密定位具有若干程度之影響下，本研究實際針對所選擇之二種代表性高壓電塔密佈環境，進行GPS觀測資料之收集與後處理之定位計算。由於電場干擾環境常為GPS測量人員所接近，故測試過程便以GPS之載波相位觀測資料與定位計算成果為重點，以進行有關電場環境範圍內外定位精度差異及其訊號品質變化等安全性內容之評估。由測試成果之分析可知，現今大地測量使用之GPS雙頻接收機及天線盤，已具有強化之抗干擾性及靈敏之接收設計，使其在外在電場干擾環境下之運作，並無顯著之定位誤差效應出現。

並列摘要

Based on the consideration of precise GPS positioning probably affected under a high-voltage power environment, some tests have been carried out at the two selected sites. As the surveyors always approach and take geodetic measurements under such a power transmission environment, the GPS phase observables and static processing were taken to evaluate the positioning accuracy and investigate the quality of the signal received. It can be realized from the tests that the types of GPS receiver and antenna with modern design are basically resistant to the jamming effect caused by a high-voltage power environment, as the significantly degrade of GPS positioning accuracy and signal quality was not shown.