功能增强型雷达显示终端关键技术的研究

发布时间：2018-03-16 02:12

本文选题：雷达显示　切入点：通用性　出处：《大连海事大学》2017年硕士论文　论文类型：学位论文

【摘要】：雷达显示终端是用于自动实时显示雷达信息的终端设备,作为人—机联系的唯一接口,在整个雷达系统中处于重要地位。传统雷达显示终端利用ARPA对雷达数据进行处理的方式存在一定局限性,已经无法达到理想的观测要求。随着计算机技术、图像处理技术和软件技术的发展,利用PC机代替原有的雷达显示器现已成为国际主流发展趋势。由于软件化的雷达显示终端仍在发展中,本文所完成的工作是对其主要模块的关键技术进行分析研究,提出可行性方案,利用软件平台进行原理图仿真和程序实现。主要工作内容如下:本文分析了接入雷达采集系统的四路信号(方位信号、船首信号、视频回波信号、触发脉冲)之间的时序关系以及各自的参数特征,利用Proteuspro7.8.平台设计接口电路,使采集系统可与不同形式、多种制式的雷达协同工作,拓展了雷达显示终端的兼容性。进行雷达数据处理时,采用CPU+GPU异构模式,在visual studio 2010环境下配置CUDA5.5,利用GPU并行计算提高检测目标的速度,并且开辟CPU多线程进行雷达目标的跟踪、传输和显示,从而提高处理效率,满足系统对实时性的要求。其中传输线程的工作是将雷达视频图像编码压缩后通过TCP协议发送至局域网内客户端,实现多点实时监控的目的,并且拓展了存储空间。雷达图像显示线程则摒弃了原有的坐标转换方式,通过索引项建立极坐标到直角坐标的映射关系,弥补了传统方法的缺陷。在常规显示的基础上,利用模板卷积的方法,为二维雷达图像增添了 3D立体的浮雕化显示效果,并提供了不同光源照射方向时,所造成的不同观测体验。本文针对功能增强型雷达显示终端所包括的采集、传输、处理和显示四个重要工作环节关键技术进行了研究和实现,在原有功能基础上完成了增强和优化,为获取更丰富的雷达信息、实现更好的雷达系统奠定了基础。
[Abstract]:The radar display terminal is the terminal equipment for automatically displaying radar information in real time. It serves as the only interface for man-machine communication. It is very important in the whole radar system. The traditional radar display terminal using ARPA to process radar data has some limitations and can not meet the ideal observation requirements. With the development of image processing technology and software technology, the use of PC to replace the original radar display has become the mainstream development trend in the world. The work accomplished in this paper is to analyze and study the key technologies of its main modules and put forward a feasible scheme. The main work is as follows: this paper analyzes the four signals (azimuth signal, bow signal, video echo signal) connected to radar acquisition system. By using Proteuspro7.8. the interface circuit of the platform is designed so that the acquisition system can work in cooperation with different forms and different kinds of radars. The compatibility of radar display terminal is extended. In radar data processing, CPU GPU isomerism mode is used to configure CUDA 5.5 in visual studio 2010 environment, and GPU parallel computing is used to improve the speed of detection target. In addition, CPU multi-thread is developed to track, transmit and display radar targets, so as to improve the processing efficiency. The task of the transmission thread is to compress the radar video image and send it to the client in the LAN through TCP protocol to realize the purpose of multi-point real-time monitoring. Moreover, the storage space is expanded. The radar image display thread abandons the original coordinate transformation mode, establishes the mapping relationship between polar coordinates and rectangular coordinates through index items, and makes up for the defects of traditional methods. By using the method of template convolution, the 3D relief display effect is added to the two-dimensional radar image, and the illumination direction of different light source is provided. This paper studies and implements the four key technologies of acquisition, transmission, processing and display, which are included in the functional enhanced radar display terminal. On the basis of the original function, the enhancement and optimization are completed, which lays the foundation for obtaining more abundant radar information and realizing better radar system.
【学位授予单位】：大连海事大学
【学位级别】：硕士
【学位授予年份】：2017
【分类号】：TN957.7

【相似文献】