本文選題：CNI　切入點(diǎn)：復(fù)雜信號(hào)環(huán)境　出處：《電子科技大學(xué)》2014年碩士論文

【摘要】：為了適應(yīng)未來(lái)電子戰(zhàn)裝備測(cè)試驗(yàn)證需求,開展在復(fù)雜電磁信號(hào)環(huán)境下通信信號(hào)、導(dǎo)航系統(tǒng)信號(hào)、IFF系統(tǒng)信號(hào)、數(shù)據(jù)鏈網(wǎng)絡(luò)信號(hào)的截獲、分析、識(shí)別,以及作戰(zhàn)對(duì)象信號(hào)和環(huán)境背景信號(hào)的區(qū)分識(shí)別等深入研究是十分必要的。隨著電子戰(zhàn)裝備的偵察截獲能力、快速捕獲能力、高分辨率信號(hào)分選能力的不斷提高,對(duì)于電子戰(zhàn)裝備的測(cè)試,需要在不同戰(zhàn)術(shù)背景和試驗(yàn)條件下,逼真地模擬產(chǎn)生寬瞬時(shí)頻段、時(shí)隙可控、頻率可控、信號(hào)樣式可調(diào)的復(fù)雜CNI信號(hào)環(huán)境。用實(shí)體電臺(tái)來(lái)模擬戰(zhàn)場(chǎng)通信信號(hào),不僅會(huì)浪費(fèi)大量的財(cái)力和物力,而且根本無(wú)法滿足新體制裝備測(cè)試試驗(yàn)的要求;用標(biāo)準(zhǔn)測(cè)試儀器對(duì)設(shè)備性能進(jìn)行測(cè)試,但是由于被測(cè)試對(duì)象的保密性、非標(biāo)性,標(biāo)準(zhǔn)測(cè)試設(shè)備的針對(duì)性、固化性、可操作性及測(cè)試集成度低的問(wèn)題,很難滿足日益復(fù)雜的電子戰(zhàn)裝備內(nèi)場(chǎng)和外場(chǎng)測(cè)試需求。本文在廣泛收集國(guó)內(nèi)外衛(wèi)星通信信號(hào)、戰(zhàn)術(shù)通信信號(hào)、數(shù)據(jù)鏈信號(hào)、導(dǎo)航信號(hào)及IFF信號(hào)等文獻(xiàn)資料基礎(chǔ)上,對(duì)復(fù)雜環(huán)境信號(hào)的信號(hào)類別、時(shí)頻特點(diǎn)、細(xì)微特征及產(chǎn)生方式等特征進(jìn)行了分析。根據(jù)復(fù)雜環(huán)境信號(hào)的多體制性、突發(fā)性、時(shí)隙性,從系統(tǒng)的復(fù)雜度、可實(shí)現(xiàn)性考慮,以硬件平臺(tái)為載體,軟件可重構(gòu)、可配置思路,給出了復(fù)雜CNI信號(hào)環(huán)境模擬器系統(tǒng)總體設(shè)計(jì)方案。針對(duì)超過(guò)20種時(shí)隙可控、頻率可控調(diào)制信號(hào)(模擬調(diào)制、PSK調(diào)制、QAM調(diào)制、CPM調(diào)制、APSK調(diào)制、FSK調(diào)制等)的模擬,從信號(hào)空間角度,對(duì)調(diào)制映射方式進(jìn)行了詳細(xì)分析,給出了相應(yīng)實(shí)現(xiàn)結(jié)構(gòu)。結(jié)合時(shí)隙分配、多速率的調(diào)制實(shí)現(xiàn)結(jié)構(gòu),并從系統(tǒng)小型化、穩(wěn)定性角度考慮,對(duì)多速率升采樣模塊進(jìn)行了優(yōu)化設(shè)計(jì),也對(duì)多信號(hào)環(huán)境關(guān)注的大動(dòng)態(tài)范圍進(jìn)行了仿真分析,完成FPGA資源占用方面進(jìn)行評(píng)估,為基帶板設(shè)計(jì)提供了參考依據(jù)。另外,本文重點(diǎn)完成了波形處理模塊的硬件設(shè)計(jì),分析了器件選型依據(jù),給出了硬件實(shí)現(xiàn)結(jié)構(gòu)。最后,論文給出了系統(tǒng)測(cè)試連接關(guān)系和測(cè)試方法,得到了模擬調(diào)制時(shí)域測(cè)試圖、頻域測(cè)試圖,數(shù)字調(diào)制星座測(cè)試圖及EVM測(cè)試值,以及復(fù)雜多信號(hào)的時(shí)域頻域測(cè)試結(jié)果。
[Abstract]:In order to meet the needs of testing and verification of electronic warfare equipment in the future, the interception, analysis and identification of communication signal, navigation system signal and IFF system signal, data link network signal under complex electromagnetic signal environment are carried out. It is very necessary to study the distinction and recognition of target signal and environment background signal. With the improvement of reconnaissance and interception capability, fast capture capability and high resolution signal sorting ability of electronic warfare equipment, For the testing of EW equipment, it is necessary to simulate the wide instantaneous frequency band, the time slot is controllable and the frequency is controllable under different tactical background and test conditions. The complex CNI signal environment with adjustable signal style. Using entity radio to simulate battlefield communication signal will not only waste a lot of financial and material resources, but also can not meet the requirements of the new system equipment testing test. The performance of the equipment is tested with standard test instruments, but due to the confidentiality, non-standard, pertinence, solidification, maneuverability and low test integration of the standard test equipment, It is very difficult to meet the increasingly complex requirements of field and outfield testing of electronic warfare equipment. Based on the extensive collection of domestic and foreign satellite communication signals, tactical communications signals, data link signals, navigation signals and IFF signals, etc. The signal types, time-frequency characteristics, subtle features and generation methods of complex environment signals are analyzed. Considering the complexity and realizability of complex environment signals, the characteristics of multi-system, sudden, time slot, and so on, are considered. Taking the hardware platform as the carrier, the software can be reconfigurable and configurable, the overall design scheme of the complex CNI signal environment simulator system is presented. The simulation of frequency controlled modulation signal (analog modulation PSK modulation QAM modulation CPM modulation APSK modulation FSK modulation etc.), from the point of view of signal space, the modulation mapping mode is analyzed in detail, and the corresponding realization structure is given. The structure of multi-rate modulation is realized. Considering the miniaturization and stability of the system, the design of multi-rate up-sampling module is optimized, and the large dynamic range of multi-signal environment is simulated and analyzed. In addition, this paper focuses on the hardware design of the waveform processing module, analyzes the basis of the device selection, and gives the hardware implementation structure. In this paper, the test connection and test method are given, and the time domain test diagram, frequency domain test diagram, digital modulation constellation test diagram and EVM test value are obtained, as well as the time domain and frequency domain test results of complex multi-signal.
【學(xué)位授予單位】：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)】：TN911.7

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