Design of Acquiring and Processing System for Seismic Data Based on High Speed and MultiChannels

This paper introduced the acquiring and processing system for seismic data based on high speed and multi-channels.The system took the FPGA as the core,and acquired the seismic data at different times with SPI(serial peripheral interface) bus,which controlled the analog to digital converter ADS1256 with 24 bit high precision and 4 data acquiring channels.The system only needs 320 ns to switch the channel,ensure the synchronize of data acquisition with multi-channels.With the high speed of FPGA,the filter with many parameters,immediate filtering processing and storage are achieved,avoids the redundancy data storage.The system can improve the speed of processing for seismic data,reduce the development costs.Therefore,the project has a better prospect.