东南大学学报（英文版）Issue(3)：315-317,3.DOI:10.3969/j.issn.1003-7985.2014.03.011
短基线 GPS应用中多径信号提取方法的对比分析
A comparison analysis of multipath extract methods in short-baseline applications of GPS
摘要
Abstract
In order to eliminate the multipath errors existing in static short-baseline applications a novel de-noising method based on a singular spectrum analysis named as DSSA is introduced to extract multipath signals.The multipath error is extracted from the double difference DD residuals by DSSA and then applied to the correct multipath error in subsequent measurements based on the correlation among adjacent epochs.Methods based on discrete wavelet transform DWT and stationary wavelet transform SWT are introduced as comparisons of DSSA based on analysis of a simulated signal. Real baseline residuals are tested to verify different extract methods. Results show that compared with the SWT the DSSA improves the root mean square RMS of the residual by 48.6% and achieves a time reduction of 75.3%.关键词
多径提取/奇异谱分析/平稳小波变换Key words
multipath extraction/singular spectrum/analysis stationary wavelet/transform分类
信息技术与安全科学引用本文复制引用
崔冰波,陈熙源..短基线 GPS应用中多径信号提取方法的对比分析[J].东南大学学报（英文版）,2014,(3):315-317,3.基金项目
The National Natural Science Foundation of China No．5137508750975049 the Ocean Special Funds for Scientific Re-search on Public Causes No．201205035-09． （）
