第三代短波选频与线路建立系统的研究与软件实现

发布时间：2018-04-03 21:55

本文选题：短波通信　切入点：第三代短波选频与线路建立　出处：《西安电子科技大学》2014年硕士论文

【摘要】：短波短波通信具有很多其它通信方式没有的优良特性,特别是其信道不易被破坏的特性备受用户青睐。本文就是一篇有关短波通信研究和实现方面的论文。本文源于科研课题“短波选频与建链技术研究”。随着技术的发展和用户需求的增加,实验室确立了第三代短波选频与线路建立系统的研制工作。本文研究了第三代短波选频与线路建立系统的协议、实现了通信控制软件。作者主要的工作和成果概述如下:1.对通信控制协议进行研究,并做了修正和改进——将部分数据帧格式中的4bit保留位用作包号位。从理论上分析了修正的原因,以及带来的性能改善:提高了建链成功率、减少了平均建链时间、增加了建链灵活性。2.由于原有的WinCE实现方案无法满足系统对实时性的要求,最终确定采用裸机实现加中断处理的方案。作者设计并实现了通信控制软件的总体架构和与通信控制板有关的接口协议,在Keil环境下采用裸机加中断方式实现。3.搭建室内测试平台,对系统进行了模块测试、连通性测试和性能测试。将实测得到的平均建链时间和建链成功率与理论值进行对比,发现:对帧格式的修正提高了系统的性能;通信控制协议的设计是可行性的;裸机加中断的实现方案是正确的。
[Abstract]:Shortwave shortwave communication has many excellent characteristics that other communication methods do not have, especially its channel is not easy to be destroyed by users.This paper is about short-wave communication research and implementation.This paper originates from the research project short-wave frequency selection and chain-building technology.With the development of technology and the increasing demand of users, the third generation HF frequency selection and circuit establishment system has been established in the laboratory.In this paper, the protocol of the third generation shortwave frequency selection and line establishment system is studied, and the communication control software is implemented.The author's main work and achievements are summarized below: 1.In this paper, the communication control protocol is studied, and the 4bit reserved bits in partial data frame format are used as packet number bits.The reason of the modification and the performance improvement are analyzed theoretically: the success rate of chain building is increased, the average chain building time is reduced, and the flexibility of chain building is increased.Because the original WinCE implementation scheme can not meet the real-time requirements of the system, it is finally decided to use bare machine to implement the scheme with interrupt processing.The author designs and implements the architecture of the communication control software and the interface protocol related to the communication control board, and implements .3in the environment of Keil by using bare machine and interrupt mode.The indoor test platform was built, and the module test, connectivity test and performance test of the system were carried out.By comparing the measured average chain building time and chain building success rate with the theoretical values, it is found that the frame format modification improves the system performance, the design of communication control protocol is feasible, and the implementation scheme of bare machine with interrupt is correct.
【学位授予单位】：西安电子科技大学
【学位级别】：硕士
【学位授予年份】：2014
【分类号】：TN925

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