建筑材料特性对GPS监测信号影响规律的试验研究

PDF(3455 KB)

振动与冲击 ›› 2011, Vol. 30 ›› Issue (10) : 19-24，4.

论文

建筑材料特性对GPS监测信号影响规律的试验研究

伊廷华1,2; 张永恒1; 李宏男1; 顾明2

作者信息 +

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

Author information +

文章历史 +

摘要

为了研究常用建筑材料对GPS监测信号的影响规律，进行了多路径误差的试验研究。建立了一套GPS多路径信号模拟与监测系统，通过在流动站天线不同高度、不同距离处安置具有不同介电常数的木板、PVC板和瓷砖，分别获取了三种材料连续两天的GPS监测数据；将改进的粒子滤波算法用于GPS数据后处理中，通过比较发现，试验结果与GPS多路径信号的仿真结果吻合较好，同一种反射材料在不同距离时引起的多路径误差随着距离的增加而逐渐减小，且在增加相同距离的情况下减小的幅度越来越小；具有不同介电常数的反射材料在相同的距离时引起的多路径误差随着介电常数的增大而增大。

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.

导出引用

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]. 振动与冲击, 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[J]. Journal of Vibration and Shock, 2011, 30(10): 19-24，4