基于DSP和PCI的水声信号处理系统及其应用

Development of Acoustic Signal Processing System based on DSP and PCI Bus

介绍了基于DSP和PCI总线的水声信号处理系统的软、硬件设计及应用。该系统主要由DSP模块和PCI模块组成,实现了多通道数据采集、实时处理和存储。DSP模块进行数据采集和实时处理;PCI模块利用PCI桥接芯片与DSP共享双端口RAM,实现PC机与DSP的高速数据通信。目前该系统已成功应用于某型宽频带水下目标模拟器,突破了目前国内研制的均是窄带模拟器的限制。

Software and hardware design of a acoustic signal processing system based on DSP and PCI bus was introduced in this article, its appications was also proposed. Data acquisition,signal processing and data storing in real-time were realized in this system which was divided into two modules：DSP and PCI. Data acquisition and signal processing were completed on DSP module. High speed data communication between PCI and DSP was implemented on PCI module using the bridge chip to share the dual-port RAM with DSP. Now this system was successfully applied on some kind of underwater wideband target simulators. The limitation of only narrowband simulators being developed in our country was broken through.