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

【摘要】：為了適應(yīng)未來電子戰(zhàn)裝備測試驗證需求,開展在復(fù)雜電磁信號環(huán)境下通信信號、導(dǎo)航系統(tǒng)信號、IFF系統(tǒng)信號、數(shù)據(jù)鏈網(wǎng)絡(luò)信號的截獲、分析、識別,以及作戰(zhàn)對象信號和環(huán)境背景信號的區(qū)分識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、高分辨率信號分選能力的不斷提高,對于電子戰(zhàn)裝備的測試,需要在不同戰(zhàn)術(shù)背景和試驗條件下,逼真地模擬產(chǎn)生寬瞬時頻段、時隙可控、頻率可控、信號樣式可調(diào)的復(fù)雜CNI信號環(huán)境。用實體電臺來模擬戰(zhàn)場通信信號,不僅會浪費大量的財力和物力,而且根本無法滿足新體制裝備測試試驗的要求;用標(biāo)準(zhǔn)測試儀器對設(shè)備性能進行測試,但是由于被測試對象的保密性、非標(biāo)性,標(biāo)準(zhǔn)測試設(shè)備的針對性、固化性、可操作性及測試集成度低的問題,很難滿足日益復(fù)雜的電子戰(zhàn)裝備內(nèi)場和外場測試需求。本文在廣泛收集國內(nèi)外衛(wèi)星通信信號、戰(zhàn)術(shù)通信信號、數(shù)據(jù)鏈信號、導(dǎo)航信號及IFF信號等文獻資料基礎(chǔ)上,對復(fù)雜環(huán)境信號的信號類別、時頻特點、細微特征及產(chǎn)生方式等特征進行了分析。根據(jù)復(fù)雜環(huán)境信號的多體制性、突發(fā)性、時隙性,從系統(tǒng)的復(fù)雜度、可實現(xiàn)性考慮,以硬件平臺為載體,軟件可重構(gòu)、可配置思路,給出了復(fù)雜CNI信號環(huán)境模擬器系統(tǒng)總體設(shè)計方案。針對超過20種時隙可控、頻率可控調(diào)制信號(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,從信號空間角度,對調(diào)制映射方式進行了詳細分析,給出了相應(yīng)實現(xiàn)結(jié)構(gòu)。結(jié)合時隙分配、多速率的調(diào)制實現(xiàn)結(jié)構(gòu),并從系統(tǒng)小型化、穩(wěn)定性角度考慮,對多速率升采樣模塊進行了優(yōu)化設(shè)計,也對多信號環(huán)境關(guān)注的大動態(tài)范圍進行了仿真分析,完成FPGA資源占用方面進行評估,為基帶板設(shè)計提供了參考依據(jù)。另外,本文重點完成了波形處理模塊的硬件設(shè)計,分析了器件選型依據(jù),給出了硬件實現(xiàn)結(jié)構(gòu)。最后,論文給出了系統(tǒng)測試連接關(guān)系和測試方法,得到了模擬調(diào)制時域測試圖、頻域測試圖,數(shù)字調(diào)制星座測試圖及EVM測試值,以及復(fù)雜多信號的時域頻域測試結(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)位級別】：碩士
【學(xué)位授予年份】：2014
【分類號】：TN911.7

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本文編號：1666024