摘要
针对阵列信号数据采集系统设计要求具有幅相一致、速度快、大数据量的特点,设计了一种基于FPGA的阵列信号数据采集系统。该系统以同步采样A/D转换器为核心,配合基于FPGA的控制单元,完成128路阵列信号同步采样功能。同时采用88E1111作为网络PHY芯片,完成与上位机之间的千兆位UDP通信,实现大数据量高速传输功能。经测试,系统实现了对128路阵列信号的采集与传输,具有良好的幅度一致性、相位一致性以及快速、稳定的特点。
To satisfy the requests of data acquisition system for array signal in amplitude- phase consistency, high speed and large volume, a kind of data acquisition system for array signal based on FPGA is designed. The system uses the synchronous A / D con-verter as the core to synchronous sample input signals. With the cooperation of control unit based on FPGA, the system has the a-bility to synchronous sample the array signal, the road number of which is reach up to 128. With the use of 88E1111 as the net PHY chip, the system can use the user datagram protocol（ UDP） to communicate with the upper computer by the gigabit Ethernet,so the large volume can release high- speed transmission. By test, system releases the acquisition and transmission of array signals,the road number of which is reach up to 128. At the same time, the system also have good amplitude- phase consistency, high speed and stability.
出处
《电子技术应用》
北大核心
2016年第2期71-73,77,共4页
Application of Electronic Technique
基金
国家自然科学基金(61573128
61273170)
