發(fā)布時(shí)間：2018-04-10 05:10

  本文選題：通信　切入點(diǎn)：演示系統(tǒng)　出處：《西安電子科技大學(xué)》2014年碩士論文

【摘要】：本文結(jié)合實(shí)驗(yàn)室承擔(dān)的科研項(xiàng)目,通過(guò)對(duì)軟件無(wú)線電GNU Radio平臺(tái)的研究,同時(shí)結(jié)合Python腳本語(yǔ)言的特性,重點(diǎn)對(duì)通信系統(tǒng)的演示控制軟件進(jìn)行實(shí)現(xiàn),從而達(dá)到演示驗(yàn)證通信的目的。本文首先在分析軟件無(wú)線電技術(shù)領(lǐng)域的發(fā)展現(xiàn)狀和趨勢(shì)基礎(chǔ)上,對(duì)演示系統(tǒng)實(shí)現(xiàn)過(guò)程中需要用到的技術(shù)及相關(guān)工具進(jìn)行介紹。其次分析了演示控制軟件的結(jié)構(gòu)和功能,并利用MVC設(shè)計(jì)模式設(shè)計(jì)實(shí)現(xiàn)通信系統(tǒng)的演示控制軟件。演示驗(yàn)證系統(tǒng)由控制平臺(tái)和模擬器組成,其中控制平臺(tái)為一個(gè)GUI軟件,主要負(fù)責(zé)配置模擬器的通信參數(shù)、控制模擬器的運(yùn)行狀態(tài)以及收集來(lái)自模擬器的狀態(tài)信息;每個(gè)模擬器作為通信系統(tǒng)中的一個(gè)端點(diǎn),其硬件由運(yùn)行Linux的高性能PC和USRP N210組成,其軟件由一套基于GNU Radio平臺(tái)的通信功能處理軟件和GUI軟件組成。本文的主要工作有:第一、設(shè)計(jì)并搭建通信演示系統(tǒng)模型。利用SWIG對(duì)已實(shí)現(xiàn)的C++通信功能子模塊進(jìn)行封裝,并向Python域提供函數(shù)接口,通過(guò)XML語(yǔ)言提供可視化的參數(shù)配置界面,根據(jù)演示業(yè)務(wù)在GRC中搭建不同的流圖,完成通信系統(tǒng)模型的構(gòu)建。第二、設(shè)計(jì)并實(shí)現(xiàn)通信演示系統(tǒng)界面。利用Python中的wxPython圖形庫(kù)及matplotlib繪圖庫(kù)聯(lián)合實(shí)現(xiàn)圖形用戶界面,主要包括參數(shù)的可視化配置、通信狀態(tài)與統(tǒng)計(jì)信息的顯示、對(duì)接收數(shù)據(jù)的可視化操作。利用wxPython圖形庫(kù)實(shí)現(xiàn)用戶界面的主框架,利用matplotlib繪圖庫(kù)實(shí)現(xiàn)殘余頻偏、殘余定時(shí)、均衡前星座等視圖的繪制,從而為通信系統(tǒng)的物理層調(diào)試提供依據(jù)。第三、設(shè)計(jì)并實(shí)現(xiàn)通信演示系統(tǒng)控制�？刂婆_(tái)配置的參數(shù)采用JSON格式下發(fā)到模擬器,實(shí)現(xiàn)了對(duì)模擬器的遠(yuǎn)程控制,并詳細(xì)討論了套接字、心跳、控制、監(jiān)視等模塊的實(shí)現(xiàn)過(guò)程。最后,本文在系統(tǒng)軟件設(shè)計(jì)完成的基礎(chǔ)上,結(jié)合演示系統(tǒng)搭載的業(yè)務(wù)對(duì)演示控制平臺(tái)軟件與控制器軟件進(jìn)行了功能測(cè)試和性能測(cè)試,測(cè)試結(jié)果表明:第一、演示控制平臺(tái)軟件能夠?qū)崿F(xiàn)對(duì)模擬器通信參數(shù)的配置、控制模擬器的運(yùn)行狀態(tài)、收集并顯示狀態(tài)與統(tǒng)計(jì)信息。第二、控制器軟件能夠響應(yīng)用戶操作,能夠繪制通信過(guò)程中的殘余偏差曲線、均衡前后星座等視圖。
[Abstract]:Combined with the scientific research project undertaken by the laboratory, through the research of the software radio GNU Radio platform and the characteristics of the Python script language, this paper focuses on the realization of the demonstration and control software of the communication system, so as to achieve the purpose of demonstrating and verifying the communication.Based on the analysis of the present situation and trend of software radio technology, this paper introduces the technology and related tools that need to be used in the implementation of the demonstration system.Secondly, the structure and function of the demo control software are analyzed, and the demonstration control software of the communication system is designed by using the MVC design pattern.The demonstration and verification system consists of a control platform and a simulator, in which the control platform is a GUI software, which is mainly responsible for configuring the communication parameters of the simulator, controlling the running state of the simulator and collecting the state information from the simulator.Each simulator acts as an endpoint of the communication system. Its hardware consists of a high-performance PC and USRP N210 running Linux, and its software consists of a set of communication function processing software and GUI software based on GNU Radio platform.The main work of this paper is as follows: first, design and build communication demonstration system model.Using SWIG to encapsulate the realized C communication function sub-module, and provide function interface to Python domain, provide visual parameter configuration interface through XML language, and build different flow graph in GRC according to demonstration service.Complete the construction of communication system model.Second, design and implement the interface of communication demonstration system.The graphical user interface is realized by using wxPython graphics library and matplotlib drawing library in Python, which mainly include the visual configuration of parameters, the display of communication status and statistical information, and the visual operation of received data.The main frame of user interface is realized by using wxPython graphics library, and the views of residual frequency offset, residual timing and equalization front constellation are drawn by using matplotlib drawing library, so as to provide the basis for debugging the physical layer of communication system.Third, the design and implementation of communication demonstration system control.The parameters of the console configuration are sent to the simulator in JSON format. The remote control of the simulator is realized, and the implementation process of socket, heartbeat, control and monitoring module is discussed in detail.Finally, based on the completion of the system software design, the function test and performance test of the demo control platform software and the controller software are carried out in combination with the business carried out by the demonstration system. The test results show that: first,The software of the demo control platform can configure the communication parameters of the simulator, control the running state of the simulator, collect and display the state and statistics information.Second, the controller software can respond to user operation, draw residual deviation curve in communication process, equalize the front and back constellation views.
【學(xué)位授予單位】：西安電子科技大學(xué)
【學(xué)位級(jí)別】：碩士
【學(xué)位授予年份】：2014
【分類號(hào)】：TN92

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本文編號(hào)：1729793