大地测量与地球动力学2011，Vol.31Issue(1)：100-104,5.
高速数据采集系统工频陷波频域算法研究
RESEARCH ON FREQUENCY DOMAIN FILTERING ALGORITHM FOR POWER LINE INTERFERENCE IN HIGH SPEED DATA ACQUISITION SYSTEM
摘要
Abstract
With respect to high speed acquisition system, the band of power line interference is extreme narrow. In the design of power line interference filter with traditional IIR and FIR methods, there is a need of a high order filter of favorable attenuation characteristics, it is hard for hardware and software to realize. Considering the wide frequency bandwidth of seismic electromagnetic radiation pulse, high sampling rate in the observation system and the characteristic of TMS320C6416, an improved algorithm of frequency domain filtering is presented. This algorithm has the advantages of simple principle and less time consuming by theoretical proof and is helpful to realize the signal reconstruction perfectly. The simulation results have proved the effectiveness of the algorithm.关键词
工频干扰/地震电磁辐射脉冲/Matlab/频域滤波/TMS320C6416Key words
power line interference/ seismic electromagnetic radiation pulse/ Matlab/ frequency domain filtering/TMS320C6416分类
天文与地球科学引用本文复制引用
魏巍,廖成旺,邓涛,丁炜,王浩..高速数据采集系统工频陷波频域算法研究[J].大地测量与地球动力学,2011,31(1):100-104,5.基金项目
中国地震局地震研究所所长基金(IS200926002) （IS200926002）
