Harmonic Distortion Analysis of Seismic Data Acquisition System Based on Single-bin DFT

摘要：

Harmonic distortion is an important analog performance index of the seismic data acquisition system (SDAS). A fast algorithm based on modified FFT pruning is proposed to analyze the harmonic distortion of the SDAS. The key of the harmonic distortion analysis is to compute the fundamental and harmonic components of the measured data. In this paper, a comparative analysis between the algorithm based on standard FFT and those based on single-bin DFT is performed. The calculating speed of each algorithm based on single-bin DFT is faster than algorithm based on standard FFT for harmonic distortion analysis of the SDAS. Moreover, of all the algorithms based on single-bin DFT, the modified FFT pruning algorithm is the most suitable for the harmonic distortion analysis of the SDAS with large numbers of channels.

关键词： harmonic distortion analysis single-bin DFT modified FFT pruning seismic data acquisition system

作者: Yong-xue Zhang Jian-ping Song Wei-chuan Huang

作者单位: Key Laboratory for Physical Electronics and Devices of the Ministry of Education, Xi’an Jiaotong Uni Institute of Geophysics, China Earthquake Administration Beijing, China

会议类型: 国际会议

会议名称: 2010 IEEE 10th International Conference on Signal Processing(第十届信号处理国际会议 ICSP 2010)

会议地点: 北京

会议语种:英文

页码: 34-37

在线出版日期: 2010-08-24（万方平台首次上网日期，不代表论文的发表时间）