Digital Signal Processing Circuit Based on Three-Component Acceleration Geophone

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Provided by: AICIT
Topic: Hardware
Format: PDF
Seismometer is indispensable equipment in the seismic exploration. This paper proposes three-component acceleration seismometer digital signal processing system, which uses DSP chip as the core to configure the corresponding peripheral circuit, in the principle exchange phase tracking homodyne detection method compensation. The proposed system improves the traditional integrated heterodyne method and the temperature compensation feedback system, which can inhibit the temperature drift of the signal demodulation, and reduce the demodulator output distortion. Theoretically proved its rationality, and thus to achieve high precision testing acceleration signal.
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