基于FPGA和DSP的电阻层析成像数据采集系统

为充分发挥DSP实时信号处理能力强和FPGA的逻辑控制以及硬件可编程的优势,构建了一套基于FPGA和DSP的16电极ERT数据采集系统.模块化的设计保证了系统良好的可维护性和可扩展性.FPGA完成激励信号产生、前端信号处理、系统逻辑控制和正交序列解调,DSP完成数据的后处理和成像算法的实现,实现了两种控制器的优势互补,...

Data Acquisition System of ERT Based ON DSP and FPGA

In order to combine real-time signal processing ability of DSP and logic controllable,hardware programmable of FPGA,a novel 16 electrodes ERT data acquisition system was constructed.In this paper,FPGA was used to realize excitation signal generation,front-end signal processing,system logic control and orthogonal sequences demodulation,while DSP accomplished data post-processing and image reconstruction.Experiments show that this modularization design guarantees a better maintainability and expansibility and...