本文選題：敵我識別 + 模擬信號源��； 參考：《電子科技大學》2014年碩士論文

【摘要】：敵我識別是在軍事戰(zhàn)場上完成敵我屬性的判定,在現(xiàn)代戰(zhàn)爭中扮演十分重要的角色。隨著技術的進步,敵我識別信號的復雜度和保密性逐漸加強。模式5作為西方體制新型的敵我識別信號,具有識別概率高、抗干擾能力強、抗截獲性能好等優(yōu)點。多目標模擬IFF信號源能夠產(chǎn)生相控陣雷達中各種制式目標和虛假目標,尤其可用于產(chǎn)生各種樣式的干擾信號,來考核敵我識別詢問應答接收機的抗干擾性能。本文介紹了各模式IFF詢問應答信號的格式及信號生成的方法,對多種M5詢問干擾樣式的干擾效果進行仿真,設計了多目標模擬IFF信號源基帶信號生成單元系統(tǒng),并對其進行調(diào)試。針對M 5詢問信號的特點,定義了4種M5詢問干擾樣式,分析了影響干擾效果的主要因素,包括干擾信號的發(fā)生頻率、干擾信號的幅度、干擾信號的樣式,并對各干擾樣式在不同參數(shù)下的干擾效果進行了仿真和比較,得到了較為有效的干擾樣式。整個系統(tǒng)采用FPGA+DSP架構,結構上可分為基帶部分和中頻部分�；鶐Р糠之a(chǎn)生的M 1、M2、M3、MC及M5詢問信號基帶IQ數(shù)據(jù),通過正交數(shù)字上變頻器得到中頻信號。本文最后對多目標模擬IFF信號源基帶信號生產(chǎn)單元的硬件系統(tǒng)進行調(diào)試,包括電源模塊調(diào)試、JTAG仿真接口調(diào)試、正交數(shù)字上變頻模塊調(diào)試等。通過對系統(tǒng)產(chǎn)生的M1、M2、M3、MC及M5的中頻信號進行測試,測試結果滿足IFF信號的格式要求。
[Abstract]:The identification of foe and foe plays a very important role in modern warfare. With the development of technology, the complexity and confidentiality of the identification signal are gradually strengthened. As a new type of identification signal in western system, mode 5 has the advantages of high recognition probability, strong anti-jamming ability and good anti-interception performance. The multi-target analog IFF signal source can produce various standard and false targets in phased array radar, especially can be used to generate various types of jamming signals to check the anti-jamming performance of the receiver. This paper introduces the format and signal generation method of IFF inquiry response signal in each mode, simulates the interference effect of various M5 interrogation interference patterns, and designs a multi-target analog IFF signal source baseband signal generating unit system. And debug it. According to the characteristics of M5 interrogation signal, four kinds of M5 interrogation interference patterns are defined, and the main factors influencing the jamming effect are analyzed, including the frequency of interference signal, the amplitude of interference signal, the pattern of interference signal, The jamming effect of each interference pattern under different parameters is simulated and compared, and a more effective jamming pattern is obtained. The whole system adopts FPGA DSP architecture, which can be divided into baseband part and if part. The base band IQ data of the M _ 1C _ 2M _ 3N _ MC and M _ 5 interrogatory signals produced by the baseband part are obtained by the orthogonal digital upconverter. Finally, the hardware system of the baseband signal production unit of the multi-target analog IFF signal source is debugged, including the debugging of the power module and the debugging of the simulation interface of JTAG, the debugging of the quadrature digital up-conversion module, and so on. The intermediate frequency signals of M1OM2M3M3 and M5 produced by the system are tested, and the results meet the requirements of IFF signal format.
【學位授予單位】：電子科技大學
【學位級別】：碩士
【學位授予年份】：2014
【分類號】：TN911.4

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本文編號：1981837