Experimental study on the influence of common construction materials on GPS monitoring signals

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Journal of Vibration and Shock ›› 2011, Vol. 30 ›› Issue (10) : 19-24，4.

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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

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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.

Key words

global positioning system / multipath effect / dielectric constant / particle filtering algorithm / monitoring system

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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