摘要
针对超宽带探测雷达回波的采集要求,设计了一种基于9223采集模块的回波信号中频信号采集系统.该系统将穿墙雷达回波信号与本振信号进行混频处理获取可直接采样的中频信号,由计算机控制9223采集模块完成了四通道回波信号同步采集并经以太网传输至计算机;依据数据采样流程,系统给出了混凝土墙体(墙体厚度12cm)后面1米处、2米处目标回波信号.实验结果表明,该采集系统有效避免了超宽带穿墙雷达直接采样的实施难度,回波信号能有效分辨目标对应峰值,满足了超宽带数据采集系统的需求.
According to the acquisition requirements of the ultra-wide band radar echo signal,this paper introduces on IF echo signal acquisition system based on the 9223.Firstly,this system obtains IF echo signal through the mixing processing of the radar echo signal and the local oscillator signal.Secondly,the 9223 acquisition module completes the four channel signal synchronous acquisition and the acquisition data is transmitted to computer by ethernet.Lastly,the system gives1 meter and 2meters of target echo signal behind the concrete wall（wall thickness 12cm）according to the data sampling process.The test result show that the system effectively avoids the difficulty of implementing ultra-wide band radar direct sampling and the echo signal can effectively distinguish the target peak.This system meets the demand of the ultra-wide band data acquisition.
出处
《山东理工大学学报（自然科学版）》
CAS
2016年第4期53-55,61,共4页
Journal of Shandong University of Technology:Natural Science Edition
基金
济南高新区企业自主创新计划(济高管发(2013)Z38号38#)
山东省科学院先导科技专项计划(201220102)
山东省科技厅自主创新及成果转化专项(2014CGZH1104)
