基于PCI-E总线的高速多通道信号发生器设计

针对现代水声定位系统性能检测需求,设计了一种基于PCI-E总线的高速多通道信号发生器。利用PC机LABVIEW软件生成不同的电模拟信号,通过PCI-E总线板卡输出到信号发生板,实现信号高速稳定传输；以FPGA为核心控制器,利用PCI9054桥芯片实现本地总线转换,经过DA逻辑控制以及多通道模拟电路调理,最终完成多通道信号波形输出。经测试系统功能稳定,达到了指标要求。该设计结构简单,可扩展性强,具有广阔的应用前景,目前已成功应用于某水声定位系统实验室功能检测。

Design of High Speed Multi-channel Signal Generator Based on PCI-E Bus

In order to meet the modernSacoustic positioning systemSperformance testSrequirements, the paper designs aShigh speed multi-channelSsignal generatorSbased on PCI-E bus. Using the PC to generate differentSelectric analog signal and generating boardSthrough PCI-ESbus boardSoutput to theSsignal,Sit realizes the signal transmissionSof high-speed stability;STaking FPGA as the coreScontroller,Sand achieve localSbus conversionSusing PCI9054Sbridge-chip,S finally itScomplete the multi-channelSsignalSwaveform output through the DASlogic controlSand multi-channelSanalog circuitSconditioning.S The system function isSstability,Sand meets the requirements by the experimentalStest.STheSdesignShas the simple structure,Sstrong scalability,Sand the broad application prospect,Sand has been successfully applied to function of the laboratorySdetection ofSunderwater acoustic positioning system.