四元探测仿真系统中实时信号传输与采集

研究四元探测仿真信号源系统中基于PCI总线的实时信号传输与采集的硬件系统，该硬件系统采用PCI协议接口芯片S5933，系统时序生成采用复杂可编程逻辑器件（CPLD），设计成PCI卡，可以实时地把模拟的源数据输出，并把相应的信号采集进计算机，对系统的基准时钟采集电路、跟踪信号与基准时钟相位采集电路、跟踪信号幅值采集电路和4咱仿真数据输出电路作了具体分析，给出了S5933的具体配置，该设计最终采集速度测试达到20MB/s，指标达到既定要求。

Real-Time Signal Transfer and Acquisition of Four-Element Detection Simulation System

Introduces a real time signal transfer and acquisition hardware for the four element detection simulation signal system, and depicts its goal and basic elements. The hardware is designed into a PCI card which uses the PCI protocol chip S5933 made by AMCC as the bus bridge with its time sequence generated by CPLD device. It can transfer the simulated data in real time bringing relevant data into the computer. Relevant circuits e.g. the base clock acquisition circuit, the phase shift between the clock and the trace signal acquisition circuit, the amplitude of the trace signal acquisition circuit and the simulation data output circuit, are described in some detail. The configuration of S5933 is given. Ways of developing the interface driver software are given. Data transfer speed of the card as tested reaches 22 MB/s which meets the requirements.