本文選題：高超聲速飛行器　切入點(diǎn)：信號處理　出處：《西安電子科技大學(xué)》2014年碩士論文　論文類型：學(xué)位論文

【摘要】：高超聲速技術(shù)是航空航天領(lǐng)域的一個重要研究方向,具有極其誘人的應(yīng)用前景。高超聲速平臺的特性使得搭載的雷達(dá)在進(jìn)行目標(biāo)探測時面臨重大挑戰(zhàn),現(xiàn)有的雷達(dá)目標(biāo)探測技術(shù)會出現(xiàn)性能下降,甚至失效的可能。因此,開展高超聲速平臺載雷達(dá)目標(biāo)探測技術(shù)研究具有重大意義。目前,高超聲速飛行器(HyperSonic Vehicle,HSV)還處于論證試驗(yàn)階段,難以在高超聲速平臺上直接驗(yàn)證雷達(dá)的信號處理性能,為了進(jìn)行雷達(dá)信號處理方法的仿真演示和驗(yàn)證工作,開發(fā)一套高超聲速平臺載雷達(dá)(HyperSonic Vehicle-borne Radar,HSV-R)信號處理仿真系統(tǒng)具有現(xiàn)實(shí)意義。1.介紹了高超聲速平臺載雷達(dá)信號處理仿真系統(tǒng)的總體方案設(shè)計。該仿真系統(tǒng)的任務(wù)主要包括對HSV-R信號環(huán)境的模擬、HSV-R信號處理過程的模擬、提供良好的人機(jī)交互環(huán)境和提供簡潔的系統(tǒng)維護(hù)與擴(kuò)展途徑四方面。依據(jù)仿真系統(tǒng)的任務(wù)制定系統(tǒng)設(shè)計思想。該仿真系統(tǒng)的功能模塊分為演示導(dǎo)引、雷達(dá)回波信號仿真、雷達(dá)信號處理三部分,并對每一部分進(jìn)行了更細(xì)致的功能劃分。最后,介紹了仿真系統(tǒng)中各功能模塊在公用參數(shù)、結(jié)果數(shù)據(jù)流動和軟件功能操作上的聯(lián)系。2.對高超聲速平臺載雷達(dá)信號處理仿真系統(tǒng)并行處理方法進(jìn)行了研究。針對系統(tǒng)因運(yùn)算量大而出現(xiàn)的執(zhí)行速度問題,在對高超聲速平臺載雷達(dá)雜波模型分析的基礎(chǔ)上,開展了并行處理方法研究,包括基于CPU的多核并行計算和基于GPU的眾核并行計算,文中給出了并行計算效果并進(jìn)行了分析。在基于CPU的多核并行計算中,介紹了基于parfor的并行計算方法和基于MDCS的并行計算方法。在基于GPU的眾核并行計算中,對現(xiàn)有GPU技術(shù)和產(chǎn)品進(jìn)行了介紹,將GPU和CPU進(jìn)行了對比,并著重講述了基于GPU的HSV-R雜波仿真方法。3.詳細(xì)介紹了高超聲速平臺載雷達(dá)信號處理仿真系統(tǒng)的開發(fā)環(huán)境和開發(fā)過程中的關(guān)鍵技術(shù),其中主要包括動態(tài)鏈接庫的設(shè)計、數(shù)據(jù)可視化技術(shù)、公共數(shù)據(jù)類的設(shè)計、數(shù)據(jù)傳遞方式的設(shè)計和系統(tǒng)路徑的索引方法。最后,展示了系統(tǒng)登錄、主界面、飛行軌道演示、回波生成、雜波特性分析、空中高速目標(biāo)檢測與跟蹤、地面動目標(biāo)檢測與定位、地面高分辨場景成像和用戶設(shè)置共九個功能模塊的實(shí)現(xiàn)情況。
[Abstract]:Hypersonic technology is an important research direction in the field of aeronautics and spaceflight, and has a very attractive application prospect. The characteristics of hypersonic platform make the radar on board face great challenge in target detection. The existing radar target detection technology will have the possibility of performance degradation or even failure. Therefore, it is of great significance to study the technology of radar target detection on hypersonic platform. The hypersonic vehicle HyperSonic vehicle HSV is still in the stage of demonstration and test, so it is difficult to directly verify the signal processing performance of radar on the hypersonic platform. It is of practical significance to develop a signal processing simulation system for hypersonic platform, HyperSonic Vehicle-borne Radarn HSV-R.The paper introduces the overall scheme design of the signal processing simulation system for hypersonic platform. The main tasks of the simulation system are as follows: 1. Including the simulation of the HSV-R signal environment and the simulation of the HSV-R signal processing process, According to the task of the simulation system, the system design idea is formulated. The function module of the simulation system is divided into demonstration guidance, radar echo signal simulation, and the simulation of radar echo signal, the function module of the simulation system is divided into four aspects: demonstration guidance, radar echo signal simulation, and so on. Radar signal processing is divided into three parts. Finally, the common parameters of each function module in the simulation system are introduced. Results the relationship between data flow and software function operation. 2. The parallel processing method of radar signal processing simulation system on hypersonic platform is studied. Based on the analysis of radar clutter model on hypersonic platform, parallel processing methods are studied, including multi-core parallel computing based on CPU and multi-core parallel computing based on GPU. In this paper, the parallel computing effect is given and analyzed. In the multi-core parallel computing based on CPU, the parallel computing method based on parfor and the parallel computing method based on MDCS are introduced. The existing GPU technology and products are introduced, and GPU and CPU are compared. The simulation method of HSV-R clutter based on GPU is described in detail. The development environment and key technologies of the radar signal processing simulation system based on hypersonic platform are introduced in detail, including the design of dynamic link library (DLL). Data visualization technology, design of common data class, design of data transfer mode and index method of system path. Finally, show system login, main interface, flight orbit demonstration, echo generation, clutter characteristic analysis. The realization of nine function modules such as high-speed air target detection and tracking, ground moving target detection and location, ground high resolution scene imaging and user setting.
【學(xué)位授予單位】：西安電子科技大學(xué)
【學(xué)位級別】：碩士
【學(xué)位授予年份】：2014
【分類號】：TN957.51

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