摘要
为了实现对水声信号的高速精确的采集,介绍了基于FPGA+DSP的架构的多通道水声信号采集软件、硬件方案,实现水声信号采集和处理。FPGA通过检测BUSY等信号读取AD7606采集的水声信号并存入双口RAM中,数据存满后向DSP发送中断,DSP接收到外部中断后通过EMIF接口读取双口RAM中的数据实现DSP与FPGA的快速通信。该系统具有采集速度快、精度高、结构简单、可靠性高等特点。
To achieve a fast and accurate acquisition of the underwater acoustic signal, a multi - channel underwater acoustic signal ac- quisition scheme based on FPGA ＋ DSP architecture is introduced. The underwater acoustic signal collected through AD7606 is read by FPGA and stored in the dual ports RAM after the BUSY signal is detected. The dual ports RAM is read by DSP when interrupt occurs through EMIF to achieve the fast communication between DSP and FPGA. Simulation results demonstrate that the system has the advan- tage of fast acquisition, high precision, simple structure and high reliability.
出处
《网络新媒体技术》
2016年第4期30-35,共6页
Network New Media Technology
