西南交通大学学报（英文版）2005，Vol.13Issue(1)：44-48,5.
Robust Spectral Estimation of Track Irregularity
Robust Spectral Estimation of Track Irregularity
摘要
Abstract
Because the existing spectral estimation methods for railway track irregularity analysis are very sensitive to outliers, a robust spectral estimation method is presented to process track irregularity signals. The proposed robust method is verified using 100 groups of clean/contaminated data reflecting he vertical profile irregularity taken from Bejing-Guangzhou railway with a sampling frequency of 33 data every 10 m, and compared with the Auto Regressive (AR) model. The experimental results show that the proposed robust estimation is resistible to noise and insensitive to outliers, and is superior to the AR model in terms of efficiency, stability and reliability.关键词
Robustness/Robust spectral estimation/Railway track spectra/Railway track irregularityKey words
Robustness/Robust spectral estimation/Railway track spectra/Railway track irregularity分类
化学化工引用本文复制引用
Fu Wenjuan,Chen Chunjun..Robust Spectral Estimation of Track Irregularity[J].西南交通大学学报（英文版）,2005,13(1):44-48,5.基金项目
The Research Project of Railway Ministry of China (No.100591). （No.100591）
