摘要
介绍一种基于CPLD的多普勒声纳回波信号仿真卡的设计实现,该板卡作为PXI测试系统的一个组成模块,数据交换基于PXI总线,使用S5920实现总线控制,利用CPLD实现板卡的时序逻辑控制,外围电路包括信号调理与匹配电路、DDS电路、A/D采集电路、高速FIFO存储电路、D/A转换电路等。重点介绍了CPLD内部功能模块的实现。该设计已成功应用于多普勒声纳的PXI测试系统中。
As a component of PXI test system, a design of Doppler sonar echo signal simulation board based on CPLD has been proposed. It uses PXI bus to realize the data exchange, uses S5920 as the bus controller and CPLD as the sequential logic controller. The peripheric circuit includes signal adjusting and matching circuit, DDS circuit A/D acquisition circuit, high speed FI- FO storage circuit, D/A convert circuit etc. The realization of CPLD＇s inside function module has been discussed in detail. This design has been successfully applied in a PXI test system which could test the function of Doppler sonar.
出处
《电子技术应用》
北大核心
2008年第2期48-51,共4页
Application of Electronic Technique
