遥测信号及实时信噪比高速同步数据采集系统设计

High-speed and Synchronous Data Collection System of Telemetry Signal and Signal to Noise Ration Signal

提出了一种具有多路、多类型的遥测信号及实时信噪比信号采集、存储及显示系统的设计及实现。该系统选用FPGA作为整个系统的主控制器,利用多块大容量FLASH存储芯片实现了信号的高速同步采集。详细介绍了信噪比数据、模拟量数据与数字量数据的编帧结构和数据采集存储过程,解决了数据的远距离传输问题。系统采用CY7C68013来实现USB接口的高速数据传输,支持热插拔,使用方便灵活。

This paper presented a kind of multi-channel and multi-type telemetry signal and signal to noise ration（SNR）signal data collection system integrated data collection,memory,and display.This system chose FPGA as the major processor and implement data acquisition with high speed and synchronization by using several Flash.The paper introduced in detail the frame structure of analog signals,digital signals and SNR signal and the process of data collection and storage,solved the problem of transmitting signal for a long distance.In this system,the communication of USB interface is based on CY7C68013,it has many advantages such as high-speed,supply hot swap,use conveniently.