基于Labview的信源模拟目标仿真系统  

The source-simulate-target emulation system based on Labview

作　　者：李勤[1] 马元峰 王皓 王志峰[1] 杨博[1] 张园[1] LI Qin;MA Yuanfeng;WANG Hao;WANG Zhifeng;YANG Bo;ZHANG Yuan(No.3 Research Institute,CETC,Beijing 100015,China)

机构地区：[1]中国电子科技集团公司第三研究所

出　　处：《电视技术》2019年第10期65-67,74,共4页Video Engineering

基　　金：国家重点研发计划项目(2018YFF01013500)

摘　　要：本文提出了一种测试地面震动传感器的信源模拟目标仿真系统,它通过数据回放来替代外场实测过程,在室内对地面震动传感器的探测目标进行模拟仿真,并对震动传感器的现场测试起到良好的补充和替代作用。通过传函系数初始化、传函系数优化和数据拼接作为信号处理模块,分别比较了多频标准播放源和车辆行驶信号播放时,播放信号和采集信号的一致性。实验结果表明,标准播放源和采集信号在时域信号和频谱特征中具有较好的一致性,可以应用于后续的信号识别。In this paper,the source-simulate-target emulation system for testing vibration sensor is proposed.Analog simulation method is applied to the detected target of the vibration sensor,and data playback is used to replace the field measurement.By means of initialization of transfer function,optimization of transfer function,and data splicing,the signal processing module is achieved.When the multi-frequency simulated signal and the vehicle field signal are employed as the play-back source,the consistence of the play-back signal and the gathering signal are compared respectively.The experimental results show that reasonable agreement between the play-back source and the gathering signal is obtained,and the system presented can be applied to the subsequent signal pattern recognition.

关 键 词：震动传感器 信源模拟目标 频谱分析 虚拟仪器 

分 类 号：TP391.9[自动化与计算机技术—计算机应用技术]