基于沖激體制的近炸引信系統(tǒng)研制
[Abstract]:In recent years, the wireless communication of impulse system has been paid more and more attention by experts and scholars, and has been gradually applied to various fields, such as military radar, civil radar, electronic countermeasure, anti-stealth, instrumentation, ultra-wideband communication and so on. Because of its advantages such as high resolution, strong anti-jamming ability, accurate positioning and simple hardware structure, the communication mode of impulse system presents a good development trend, but it is also facing huge technical challenges at the same time. Based on the advantages of wireless communication in impulse system, a proximity fuze system based on impulse mechanism is designed and developed in this paper. The main contents of this paper include the design of low-voltage ultra-wideband pulse source, the design of ultra-wideband signal receiver and the digital logic design of the whole machine. In the design of low voltage pulse source, the working mechanism of SRD (step recovery diode) is analyzed, and several typical circuit structures are studied. Each circuit is simulated in ADS software, and the influence of each device on the result is analyzed. Furthermore, the circuit structure is optimized step by step, and the experiment is carried out under the guidance of the simulation results. The pulse source circuit has the advantages of simple structure, small volume, low cost and stable performance. In the aspect of UWB receiver, several classical receiving schemes are studied and discussed. Combining with the special application field of proximity fuze, the corresponding receiving circuit is designed. In this design, the latch function of the high-speed comparator is used to latch the received narrow pulse comparison results, and the high-precision delay device combined with the main control logic part locks the high-speed comparator accurately when the pulse echo arrives, so that the pulse broadening can be realized. At the same time achieve the purpose of digitization. In the aspect of digital logic design, the coding method is adopted to improve the anti-jamming ability. The eight-bit code transmits narrow pulses by bit-by-bit shift registers out of the trigger pulse source, and then uses the shift registers to bit-by-bit into the eight-bit already digitized code after the echo arrives, and compares the two to determine whether to ignite the bomb or not. The whole digital logic part is realized by FPGA (Programmable Logic Gate Array). Compared with the traditional discrete digital devices, it has the advantages of high integration, short development period and stable performance. This design uses the FPGA, of CycloneIII series of ALTERA company to design the circuit module in the development software QuartusII firstly, then carries on the logic simulation in the simulation software ModelSim, finally downloads to the FPGA chip to carry on the measurement.
【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】:TN92
【相似文獻】
相關期刊論文 前10條
1 苑林楨,苗立功;近炸引信的系統(tǒng)試驗技術[J];系統(tǒng)工程與電子技術;1993年11期
2 王健;激光近炸引信對抗技術[J];光電對抗與無源干擾;1999年04期
3 齊杏林;任亮亮;崔平;周曉東;;庫存近炸引信電性能仿真測試方法綜述[J];指揮控制與仿真;2010年04期
4 薛文忠;潘昌榮;蘇奇文;牛軍浩;;便攜式紅外尋的導彈近炸引信延遲引爆時間的研究[J];桂林電子科技大學學報;2011年03期
5 蔡克榮;鄧甲昊;王克勇;;小口徑激光近炸引信的抗干擾方法[J];光電工程;2011年07期
6 李靜;雷志勇;王澤民;李翰山;;近炸引信對空炸點位置測試方法研究[J];計算機測量與控制;2011年07期
7 甘霖;張合;張祥金;馮穎;;激光近炸引信單光束脈沖周向探測技術[J];紅外與激光工程;2013年01期
8 于靜;孔敏;王冬梅;;基于電容傳感器的電容近炸引信炸高散布研究[J];傳感器與微系統(tǒng);2013年07期
9 李建良,施聚生;信息理論在近炸引信炸點控制中的應用[J];北京理工大學學報;1994年04期
10 陳炳林,張河,紀鐵剛;基于自動增益控制的激光近炸引信技術[J];激光雜志;2004年01期
相關會議論文 前2條
1 陳守謙;張正輝;范志剛;;激光近炸引信測距能力的光學測試方法研究[A];2006年全國光電技術學術交流會會議文集(C 激光技術與應用專題)[C];2006年
2 張鑫;崔占忠;徐立新;;電極數(shù)目對電容近炸引信作用距離的影響[A];2010中國儀器儀表與測控技術大會論文集[C];2010年
相關碩士學位論文 前10條
1 潘敬源;基于沖激體制的近炸引信系統(tǒng)研制[D];電子科技大學;2014年
2 牛文博;毫米波近炸引信信號處理技術研究[D];西安電子科技大學;2009年
3 徐彤;激光近炸引信定距算法的研究[D];南京理工大學;2010年
4 王冰;激光近炸引信抗干擾能力評估方法研究[D];電子科技大學;2012年
5 楊昭;激光近炸引信的目標探測系統(tǒng)研究[D];長春理工大學;2012年
6 陳曉宇;激光近炸引信目標探測與判別技術[D];西安電子科技大學;2014年
7 李彥;空地導彈激光近炸引信技術研究[D];南京理工大學;2004年
8 曹安力;周視激光近炸引信典型目標激光散射特性研究[D];南京理工大學;2004年
9 張躍;半主動式激光近炸引信目標探測與信號處理技術研究[D];南京理工大學;2007年
10 陳廣新;用于激光近炸引信的高速近程脈沖測距系統(tǒng)研究[D];電子科技大學;2008年
,本文編號:2443578
本文鏈接:http://sikaile.net/kejilunwen/wltx/2443578.html