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.
Wei Wei,Liao Chengwang,Deng Tao et al. RESEARCH ON FREQUENCY DOMAIN FILTERINGALGORITHM FOR POWER LINE INTERFERENCE IN HIGH SPEED DATA ACQUISITION SYSTEM[J]. , 2011, 31(1): 100-104.
Wei Wei,Liao Chengwang,Deng Tao et al. RESEARCH ON FREQUENCY DOMAIN FILTERINGALGORITHM FOR POWER LINE INTERFERENCE IN HIGH SPEED DATA ACQUISITION SYSTEM[J]. jgg, 2011, 31(1): 100-104.
