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The Application of Multi-Stage Decimation Filter in Digital Strong Motion Seismograph

Author: WangLei
Tutor: YangXueShan；WeiJiWu
School: China Seismological Bureau, Institute of Engineering Mechanics
Course: Disaster Prevention and Reduction Engineering and Protective Engineering
Keywords: multi-stage decimaition filter strong motion seismograph digital signal processing CS5376A DSP
CLC: P315.62
Type: Master's thesis
Year: 2005
Downloads: 96
Quote: 2
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Abstract


The multi-stage decimation filter is a main subject of digitalsignal processing theory. It can be used in high accuratetempreture, pressure and vibration signal measurement.Accompanied with the development of LSI(large-scale integration)and SLSI(super large-scale intergration), digital signalprocessor and multi function filter are naturally used in thedesign of strong motion seismograph. The multi-stage decimationfilter and the Δ Σ A/D convert, as the key technics, playcritical rule in this project.This paper has reaserched several features about multi-stagedecimation filer. First, the theory used in digital signalprocessing and multi-stage decimation filter and the networkstructure of FIR decimation filter. Second, the theory andapplication of Δ Σ A/D convert, while give a method ofdesigning multi-stage decimation filter with MATLAB anddesigning multi-stage decimation filter with digital signalprocessor. Finally,this paper analysis the structure andapplication of CS5376A and design a circuit using CS5376A instrong motion seismograph.

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CLC: > Astronomy,Earth Sciences > Geophysics > Earth ( rock circles ) physics ( geophysics ) > Seismology > Seismometry > Seismic observation instruments and equipment
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