本文選題：大型相控陣預(yù)警雷達(dá) + 雷達(dá)導(dǎo)引系統(tǒng)��； 參考：《電子科技大學(xué)》2017年碩士論文

【摘要】：隨著雷達(dá)在軍事戰(zhàn)略中的重要性日益凸顯,相控陣?yán)走_(dá)技術(shù)一經(jīng)提出便引起廣泛關(guān)注。相控陣?yán)走_(dá)相比傳統(tǒng)機(jī)械雷達(dá)有著巨大優(yōu)勢,不僅可以實現(xiàn)無慣性掃描、波束捷變,而且可以結(jié)合信號處理技術(shù),實現(xiàn)多目標(biāo)跟蹤、雷達(dá)成像、目標(biāo)特征識別等高級功能。如此廣闊的運(yùn)用場景,決定了相控陣?yán)走_(dá)技術(shù)有著很高的研究價值。由于相控陣?yán)走_(dá)具有眾多技術(shù)優(yōu)勢,因此其被廣泛地應(yīng)用到各種各樣的場景中。根據(jù)應(yīng)用場景的不同,往往需要將相控陣技術(shù)與特定領(lǐng)域技術(shù)相結(jié)合。構(gòu)建實際的雷達(dá)系統(tǒng)造價高、周期長,而計算機(jī)仿真可以方便有效地驗證雷達(dá)性能,為電子對抗、攻防演練提供參考。本文分別針對相控陣?yán)走_(dá)在遠(yuǎn)程預(yù)警和導(dǎo)彈制導(dǎo)兩個典型場景進(jìn)行了研究,具體內(nèi)容包含如下幾點:1、介紹了相控陣?yán)走_(dá)的基本原理,對雷達(dá)回波信號的組成及其數(shù)學(xué)模型進(jìn)行了相應(yīng)分析;同時介紹了相控陣?yán)走_(dá)的信號處理基本流程,著重討論了脈沖壓縮、動目標(biāo)檢測技術(shù)以及keystone變換。2、對大型相控陣預(yù)警雷達(dá)的性能參數(shù)進(jìn)行逆向分析,從天線布陣和子陣劃分等角度入手,對收集來的雷達(dá)參數(shù)信息做合理性分析,并給出相應(yīng)仿真結(jié)果;針對相控陣天線相位中心計算的問題,本文提出了基于單脈沖測角理論的相位中心計算方法,詳細(xì)闡述了計算原理,并與相位梯度計算法進(jìn)行仿真對比實驗。3、結(jié)合性能系統(tǒng)參數(shù)逆向分析,對大型相控陣預(yù)警雷達(dá)進(jìn)行建模與系統(tǒng)仿真。對信號模型、信號處理、數(shù)據(jù)處理以及資源管理這些模塊分別進(jìn)行仿真分析,并給出仿真結(jié)果;同時構(gòu)造多目標(biāo)入侵以及目標(biāo)分裂的場景,對整個預(yù)警雷達(dá)進(jìn)行仿真實驗。4、對相控陣?yán)走_(dá)導(dǎo)引系統(tǒng)進(jìn)行建模與系統(tǒng)仿真。結(jié)合雷達(dá)原理,給出整個系統(tǒng)設(shè)計框架與工作流程;針對導(dǎo)彈制導(dǎo)場景,著重介紹了比例導(dǎo)引法的基本原理與數(shù)學(xué)模型;運(yùn)用面向?qū)ο笤O(shè)計思想,利用MFC軟件庫,對整個雷達(dá)導(dǎo)引系統(tǒng)進(jìn)行軟件架構(gòu)設(shè)計,同時為該仿真平臺開發(fā)圖像界面;合理構(gòu)造實驗場景,利用該平臺對飛行目標(biāo)進(jìn)行制導(dǎo)攔截,并給出動態(tài)仿真結(jié)果。
[Abstract]:With the increasing importance of radar in military strategy, phased array radar technology has attracted wide attention once it is put forward. Phased array radar has a great advantage over traditional mechanical radar. It can not only realize inertial scanning, beam agility, but also realize advanced functions such as multi-target tracking, radar imaging, target feature recognition and so on, combined with signal processing technology. With such a wide range of applications, phased array radar technology has a high research value. Phased array radar has many technical advantages, so it is widely used in various scenarios. According to the different application scenarios, it is often necessary to combine phased array technology with specific domain technology. The actual radar system has high cost and long period, and the computer simulation can verify the radar performance conveniently and effectively, and provide reference for the electronic countermeasure, attack and defense drill. In this paper, two typical scenarios of phased array radar, long-range early warning and missile guidance, are studied, including the following points: 1. The basic principle of phased array radar is introduced. The composition and mathematical model of radar echo signal are analyzed, the basic flow of phased array radar signal processing is introduced, and the pulse compression is discussed. Based on moving target detection technology and keystone transform. 2, the performance parameters of large phased array early warning radar are analyzed in reverse. The rationality of the collected radar parameter information is analyzed from the angle of antenna array and subarray partition. To solve the problem of phase center calculation of phased array antenna, this paper presents a calculation method of phase center based on monopulse angle measurement theory, and expounds the calculation principle in detail. The simulation results are compared with the phase gradient calculation method. 3. Combined with the reverse analysis of the performance system parameters, the modeling and system simulation of the large phased array early warning radar are carried out. The signal model, signal processing, data processing and resource management are simulated and analyzed respectively, and the simulation results are given. At the same time, the scene of multi-target intrusion and target splitting is constructed. The simulation experiment of the whole early warning radar is carried out, and the modeling and system simulation of phased array radar guidance system are carried out. Combined with the principle of radar, the whole system design frame and work flow are given, the basic principle and mathematical model of proportional guidance method for missile guidance scene are introduced emphatically, the object oriented design idea and MFC software library are used. The software architecture of the whole radar guidance system is designed and the image interface is developed for the simulation platform. The experimental scene is constructed reasonably and the flight target is guided and intercepted by the platform and the dynamic simulation results are given.
【學(xué)位授予單位】：電子科技大學(xué)
【學(xué)位級別】：碩士
【學(xué)位授予年份】：2017
【分類號】：TN958.92

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相關(guān)期刊論文 前10條

1 曾卓;;基于GPU的非均勻雜波快速仿真[J];電光與控制;2016年12期

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本文編號：1907171