基于PXIE的信号完整性测试系统设计

Signal Integrity Testing System Based on PXIE

摘要:

为了满足运载火箭遥测系统中信号完整性测试的需求,研制了一套基于PXIE的高速数据采集系统;该系统采用多机箱级联设计,最大采样通道数为48,单通道最高采样率达250 MS/s,数据实时存储速度高达750 MB/s;系统软件平台采用Labview开发,具有良好的人机交互性;通过试验验证,测试系统工作稳定,能较好的满足测试需求,同时该系统的设计方法为同类高速数据流盘的设计提供了一种思路。

Abstract:

In order to meet the signal integrity testing demand of launch vehicle telemetry system, high-speed data acquisition system has been developed, which is using multiple case cascade designs, surporting 48 sampling channels most, 250 MS/s sampling rate, and 750 MB/s real-time data storage rate. The system software is devloped based on Labview, which is good man-machine interactive.Through experiments, the signal integrity testing demands can be satisfied vevy well. This method of high-speed data flow provides a new way of designing thoughts.