Experimental study on the influence of common construction materials on GPS monitoring signals
YI Ting-hua1,2; ZHANG Yong-heng1; LI Hong-nan1; GU Ming2
1. Faculty of Infrastructure Engineering, Dalian University of Technology, Dalian 116023, China;2. State Key Laboratory for Disaster Reduction in Civil Engineering, Tongji University, Shanghai 200092, China
Abstract:In order to study the influence of common construction materials on the GPS monitoring signals, the experimental study on multipath effect was carried on. A set of simulating and monitoring system for GPS multipath signals was established, and the continuously two-day-long GPS monitoring data of different materials were obtained by means of placing board, PVC sheet and ceramic tiles with different dielectric constants at different heights and distances from the receiver antenna. The improved particle filtering algorithm is being used in the GPS data post-processing. By comparison, it’s shown that the experimental results coincide with the simulation results of GPS multipath signals very well. The multipath errors caused by the same reflecting material decrease with the distances increase and under the condition of increasing the same distance, the extent of decrease is more and more small. While the multipath errors caused by the reflecting materials with different dielectric constants at same distance increase with the dielectric constants increase.
伊廷华;张永恒;李宏男;顾明. 建筑材料特性对GPS监测信号影响规律的试验研究[J]. , 2011, 30(10): 19-24,4.
YI Ting-hua;ZHANG Yong-heng;LI Hong-nan;GU Ming. Experimental study on the influence of common construction materials on GPS monitoring signals. , 2011, 30(10): 19-24,4.