Application of SoPC on High-precision Geoelectric Data Acquisition System

To get better and faster development,modern geophysics needs to draw upon the latest technologies to promote the acquisition precision of geophysical data.System on Programmable Chip(SoPC) is a flexible and efficient SoC solution based on FPGA,which provides a new way to develop novel high-precision geoelectric data acquisition device.This paper introduces the application of SoPC technology to the research and design of an A/D conversion controller which complies with the time sequence of CS5372,a module conversing the serial data to parallel one,a resampling FIR digital filter using Matlab and DSP Builder,a NIOS II Soft IP Core integrated by Quartus Ⅱ and a PC software designed with LabVIEW.Under the application of equipments mentioned above,Cyclone chips which replace expensive CS5376 can be used to realize the acquisition of the high-precision geoelectric data.As the result shown,the use of the technology of SoPC can greatly improve the cost performance of high-precision geoelectric data acquisition devices and also can integrate the digital parts of geo-electric data acquisition devices into a chip,which also provide an effective way to solve problems under the complex geoelectric condition.