一种准LXI总线结构的远程分布式测试系统方案设计  

Remote Distributed Test System Based on a Structure of Quasi LXI Bus

作　　者：杜国兴[1] 盛文[1] 王盛超[2] 

机构地区：[1]空军预警学院 [2]94005部队

出　　处：《计算机测量与控制》2013年第6期1418-1420,1445,共4页Computer Measurement &Control

摘　　要：某型雷达由若干个站组成,各站之间距离较远,通过光纤传输网络来传输信号;为实现某型雷达的分布式测试需求,利用现有的PXI仪器,构建了一种准LXI总线结构的远程分布式测试系统;该测试系统以LAN网络结构为基础扩展而成,以PXI仪器完成各站的测试数据采集,并通过DataSocket技术实现网络内的远程数据传输;利用现有的光纤传输网络,给出了系统的同步方案,并提出同步触发的校准方法;最后,以PXI-5122模块采集方波信号为例,验证了远程测试数据传输的功能。The radar is made up of several stations which are far away from each other and transfers signal through the optical fiber transmission network. To meet the distributed test demand of the radar, a remote distributed test system based on a quasi LXI bus structure was built by the use of the PXI instruments in hand. The test system is the expansion of LAN structure. It achieved data acquisition of each sta- tions by the PXI instruments, and used the DataSocket technology for remote transmission of test data in the network. By taking advantage of the optical fiber transmission network, the Synchronization scheme was provided, and the calibration method of synchronous trigger was presented. At last, taking the square wave acquisition of the PXI-5122 as an example, the function of transmission of test data has been proved.

关 键 词：远程分布式测试 LXI PXI 光纤传输 同步触发 

分 类 号：TP274[自动化与计算机技术—检测技术与自动化装置]