Wavelet Filters Based Separation of GPS Multi-path Effects and Engineering Structure Vibrations
Yongliang Xiong · 2001
The recent advances in GPS technology recording at 20 samples per second allows reliable monitoring of engineering structure, such as suspension or cable-stayed bridges and tall buildings. But the coordinates conducted from GPS trajectory estimator (i.e. epoch by epoch) usually are affected by many factors, e.g. multi-path and temperature as major. To assess stress and drift conditions of engineering structure one have to separate structure vibrations from other biases. The Wavelet analysis technique has been successfully used for this purpose, and the analysis results from practical data are presented.