本文選題：電子偵察　切入點(diǎn)：軟件體系結(jié)構(gòu)　出處：《西安電子科技大學(xué)》2014年碩士論文　論文類(lèi)型：學(xué)位論文

【摘要】：電子對(duì)抗設(shè)備系統(tǒng)的研制是一項(xiàng)比較復(fù)雜的工程,它主要包括電子偵察系統(tǒng)和電子干擾系統(tǒng)兩大組成部分,其中電子偵察則是實(shí)施電子對(duì)抗的基礎(chǔ)和前提。每一系統(tǒng)都包含若干層次,涉及眾多的專(zhuān)業(yè)領(lǐng)域,通過(guò)仿真技術(shù)來(lái)驗(yàn)證系統(tǒng)的可靠性及穩(wěn)定性既可以有效的評(píng)估系統(tǒng)的性能又能彌補(bǔ)外場(chǎng)試驗(yàn)的不足。首先,本文描述了標(biāo)準(zhǔn)化、層次化及動(dòng)態(tài)可重構(gòu)的軟件體系結(jié)構(gòu)設(shè)計(jì)原則,并在此基礎(chǔ)上討論了基于層次系統(tǒng)、管道/過(guò)濾器、面向?qū)ο蟮膫刹旆抡嫦到y(tǒng)體系結(jié)構(gòu)設(shè)計(jì)。接著,本文對(duì)電子偵察系統(tǒng)中信道化接收機(jī)、瞬時(shí)測(cè)頻接收機(jī)及干涉儀測(cè)向接收機(jī)進(jìn)行了數(shù)學(xué)建模,并利用MATLAB進(jìn)行了仿真驗(yàn)證。首先,通過(guò)分析低通濾波器組模型效率低下的問(wèn)題,實(shí)現(xiàn)了高性能的基于復(fù)信號(hào)和實(shí)信號(hào)的多相DFT結(jié)構(gòu)的濾波器組模型。其次,本文對(duì)基于瞬時(shí)自相關(guān)法的數(shù)字測(cè)頻模型和基于相位差分法的數(shù)字測(cè)頻模型進(jìn)行了詳細(xì)的論述,兩種測(cè)頻算法原理簡(jiǎn)單,計(jì)算量小,易于工程實(shí)現(xiàn)。最后,本文重點(diǎn)討論了鑒相器模型和相位解模糊模型。其中,鑒相器模型主要討論了基于時(shí)域和頻域上的窄帶信號(hào)鑒相算法和基于頻域上的寬帶信號(hào)鑒相算法,一定的信噪比下,兩種算法的鑒相精度比較高;相位解模糊模型則主要討論了基于窄帶信號(hào)的解模糊算法和基于寬帶信號(hào)的解模糊算法,合理的入射角范圍內(nèi),兩種算法的相位解模糊性能較好。然后,論文在分析總結(jié)偵察仿真系統(tǒng)軟件體系結(jié)構(gòu)及測(cè)頻、測(cè)向理論模型的基礎(chǔ)上,利用統(tǒng)一建模語(yǔ)言(UML)對(duì)電子偵察系統(tǒng)的各個(gè)功能模塊進(jìn)行了用例模型、靜態(tài)模型與動(dòng)態(tài)模型的軟件建模,然后根據(jù)已建立好的UML模型對(duì)偵察系統(tǒng)的功能模塊進(jìn)行了標(biāo)準(zhǔn)化、層次化與可視化的底層模型設(shè)計(jì)與實(shí)現(xiàn)。最后,在參研項(xiàng)目開(kāi)發(fā)平臺(tái)的基礎(chǔ)上,利用系統(tǒng)建模軟件對(duì)偵察系統(tǒng)各個(gè)功能模塊進(jìn)行了底層的開(kāi)發(fā)與設(shè)計(jì),并通過(guò)系統(tǒng)架構(gòu)軟件對(duì)某電子偵察仿真系統(tǒng)進(jìn)行了模塊的整體搭建、參數(shù)的綜合設(shè)置與系統(tǒng)的聯(lián)合仿真分析,從而實(shí)現(xiàn)了電子偵察仿真系統(tǒng)跨平臺(tái)、跨軟件的異構(gòu)仿真模型的建模工作,滿足了建模與仿真技術(shù)分布式、互操作、可重用的發(fā)展需求。
[Abstract]:The development of electronic countermeasure equipment system is a complicated project. It mainly includes two major components: electronic reconnaissance system and electronic jamming system. Among them, electronic reconnaissance is the basis and prerequisite for the implementation of electronic countermeasures. Each system consists of several levels and involves many professional fields. Simulation technology is used to verify the reliability and stability of the system, which can effectively evaluate the performance of the system and make up for the deficiency of the field test. Firstly, this paper describes the principles of software architecture design, which are standardized, hierarchical and dynamically reconfigurable. On this basis, the architecture design of reconnaissance simulation system based on hierarchical system, pipeline / filter, object oriented is discussed. Then, the channelized receiver in electronic reconnaissance system is discussed in this paper. The instantaneous frequency measurement receiver and interferometer direction-finding receiver are modeled and simulated by MATLAB. Firstly, the problem of low pass filter bank model efficiency is analyzed. The high performance filter bank model of multiphase DFT structure based on complex signal and real signal is realized. Secondly, the digital frequency measurement model based on instantaneous autocorrelation method and the digital frequency measurement model based on phase difference method are discussed in detail in this paper. The two frequency measurement algorithms are simple in principle, small in computation and easy to be realized in engineering. Finally, the phase discriminator model and the phase resolution fuzzy model are discussed in this paper. The phase discriminator model mainly discusses the narrowband signal phase detection algorithm based on time domain and frequency domain and wideband signal phase detection algorithm based on frequency domain. The phase defuzzification model mainly discusses the algorithm based on narrowband signal and wideband signal. The two algorithms have better performance in the range of reasonable incidence angle. On the basis of analyzing and summarizing the software architecture, frequency measurement and direction finding theory model of reconnaissance simulation system, the use case model of each function module of electronic reconnaissance system is carried out by using unified modeling language (UML). The software modeling of static model and dynamic model, and then based on the established UML model, the function module of reconnaissance system is standardized, hierarchical and visualized, and the underlying model is designed and implemented. On the basis of the development platform of the project, the system modeling software is used to develop and design each function module of the reconnaissance system, and the whole module of an electronic reconnaissance simulation system is built by the system architecture software. The integrated setting of parameters and the joint simulation analysis of the system can realize the modeling of heterogeneous simulation model of electronic reconnaissance simulation system across platforms and software, which satisfies the distributed and interoperation of modeling and simulation technology. Reusable development needs.
【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(lèi)號(hào)】：TN971

【參考文獻(xiàn)】

相關(guān)期刊論文 前1條

1 陳海忠,趙巾衛(wèi),朱偉強(qiáng);數(shù)字式干涉儀測(cè)向技術(shù)鑒相算法研究[J];航天電子對(duì)抗;2004年04期

相關(guān)博士學(xué)位論文 前1條

1 陳虔;虛擬現(xiàn)實(shí)協(xié)同仿真建模與應(yīng)用研究[D];北京航空航天大學(xué);2000年

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本文編號(hào)：1577853