分布式雷达系统数据采集与显控模块的设计与实现

发布时间：2018-04-13 02:00

本文选题：分布式穿墙雷达 + 数据采集与控制　；参考：《电子科技大学》2017年硕士论文

【摘要】：分布式穿墙雷达利用多台雷达发射电磁波,并在多个视角下对墙后进行目标检测、跟踪、定位、成像等。本文中涉及的分布式雷达系统是基于两台一发两收雷达设备,即分别采用一个发射天线和两个接收天线构成的阵列。相比单视角的雷达,分布式雷达系统通过协同信号提高对隐蔽目标的监视,并为反恐、公安执法、军事作战等领域提供重要决策信息。本文针对分布式雷达系统的硬软件设计要求,研究数据信号调理电路、数据采集与预处理、步进频控制、电源电路、数据传输协议、信号处理与显控等问题,最终完成数据采集与控制模块、信号处理与显控模块的设计与实现,具体工作如下所述:1.分析分布式穿墙雷达整体架构,基于分布式穿墙雷达的探测及定位原理,分析系统各个子模块的功能与指标要求,得出数据采集与控制模块和信号处理与显控模块的指标。2.依据数据采集与控制模块的指标要求,实现数据采集与控制模块的硬件与程序设计,主要包括:芯片选型、硬件电路设计、PCB制作、FPGA程序编写与调试、硬件电路与程序控制的联合调试。3.依据信号处理与显控模块的指标要求,并实现信号处理与显控上位机的设计,主要包括:WiFi创建与数据接收;上位机窗口设计;算法移植;利用数据缓存技术、多线程技术等完成信号处理与显示。4.实现硬件与软件的联合调试,并进行系统的整体实验,主要包括闭环实验、外场实验。通过闭环实验测试分布式雷达系统的稳定性,并最终经过外场实验完成分布式雷达系统的联合定位结果显示等。
[Abstract]:Distributed wall penetrating radar emits electromagnetic waves from multiple radars, and detects, tracks, locates and imagines the targets behind the walls from multiple angles of view.The distributed radar system in this paper is based on two radar equipments, one transmitting antenna and two receiving antennas.Compared with single view radar, distributed radar system improves the surveillance of hidden targets through cooperative signals, and provides important decision information for anti-terrorism, public security enforcement, military operations and other fields.Aiming at the hardware and software design requirements of distributed radar system, this paper studies the data signal conditioning circuit, data acquisition and preprocessing, step frequency control, power supply circuit, data transmission protocol, signal processing and display control, etc.Finally, the design and implementation of data acquisition and control module, signal processing and display control module are completed, and the specific work is described as follows: 1.Based on the detection and positioning principle of distributed penetrating wall radar, the function and index requirements of each sub-module of the system are analyzed, and the indexes of data acquisition and control module and signal processing and display control module are obtained.According to the index requirement of data acquisition and control module, the hardware and program design of data acquisition and control module is realized, which includes chip selection, hardware circuit design, PCB making and FPGA programming and debugging.Hardware circuit and program control joint debugging. 3.According to the index requirement of signal processing and display control module, the design of signal processing and display control host computer is realized, which mainly includes: WiFi creation and data receiving, upper computer window design, algorithm transplantation, data cache technology,Multithreading technology to complete signal processing and display. 4.The joint debugging of hardware and software is realized, and the whole experiment of the system is carried out, including closed loop experiment and field experiment.The stability of the distributed radar system is tested by closed-loop experiments, and the joint positioning results of the distributed radar system are finally displayed through the field experiments.
【学位授予单位】：电子科技大学
【学位级别】：硕士
【学位授予年份】：2017
【分类号】：TN958

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