OPTIMAL DESIGN OF DIGITAL EXTRACTION FILTER WITH DSP
Tan Yaoyin 1,2) ; Liao Chengwang 1,2) ; Deng Tao 1,2) ; Zhao Fenghua 1,2) ;Ding Wei 1,2) ; and Chen Weiming 1,2)
1) Institute of Seismology , CEA , Wuhan 4300712) Crustal Movement Laboratory , Wuhan 430071
Abstract Digital Signal Processor (DSP) is used as a digital decimation filter to lower the cost and power consumption of earthquake data acquisition system. The program is optimized after the lookup table method, reverse circular traversal method and circular addressing simulation method to implement fourstage and fourchannel filtering under low operating frequency,so as to meet practical requirement.
Key words ：
DSP
digital decimation filter
optimization
look-up table method
reverse circular traversing
Received: 01 January 1900
Corresponding Authors:
Tan Yaoyin
Cite this article:
Tan Yaoyin,Liao Chengwang,Deng Tao et al. OPTIMAL DESIGN OF DIGITAL EXTRACTION FILTER WITH DSP[J]. , 2007, 27(增刊): 87-90.
Tan Yaoyin,Liao Chengwang,Deng Tao et al. OPTIMAL DESIGN OF DIGITAL EXTRACTION FILTER WITH DSP[J]. jgg, 2007, 27(增刊): 87-90.
URL:
http://www.jgg09.com/EN/ OR http://www.jgg09.com/EN/Y2007/V27/I增刊/87
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