寬帶雷達(dá)低截獲抗干擾性能研究
[Abstract]:Wideband radar has been attached great importance by many countries for its advantages of strong anti-jamming and high range resolution. In this paper, the low-interception and anti-jamming performance of wideband radar is studied. Firstly, the echo characteristics of wideband radar target and the range migration phenomenon of target echo are analyzed, and several different wideband signal detection methods are discussed. The simulation results show that the wideband radar target is a superposition of multiple scattering centers. Secondly, according to the radar low interception factor, the measures to obtain low probability of interception are discussed, and some common low interception rate radar signal forms are analyzed. Then based on orthogonal frequency division multiplexing (OFDM, Orthorgonal Frequency Division Multiplexing) technology, the basic principle and system structure of OFDM radar signal, four kinds of jamming types are described. According to the characteristics of radar jamming, several anti-jamming techniques are introduced. Finally, MATLAB is used to simulate the anti-jamming performance of OFDM signal, truncated M sequence signal and linear frequency modulation signal (LFM, Linear Frequency Modulated) signal. The results are analyzed and compared. It is concluded that truncated M sequence has better anti-jamming performance than OFDM signal and LFM signal. At the same time, OFDM signal has the advantages of complex waveform and flexible design, so it is one of the commonly used signals of LPI radar.
【學(xué)位授予單位】:南京理工大學(xué)
【學(xué)位級(jí)別】:碩士
【學(xué)位授予年份】:2014
【分類號(hào)】:TN974
【參考文獻(xiàn)】
相關(guān)期刊論文 前10條
1 張衛(wèi);唐希源;顧紅;蘇衛(wèi)民;;OFDM雷達(dá)信號(hào)模糊函數(shù)分析[J];南京理工大學(xué)學(xué)報(bào);2011年04期
2 黃鵬剛;低截獲概率雷達(dá)技術(shù)研究[J];現(xiàn)代電子技術(shù);2003年18期
3 向建軍;夏海寶;李新虎;許蘊(yùn)山;;一種海雜波背景下雷達(dá)信號(hào)檢測(cè)方法的研究[J];現(xiàn)代電子技術(shù);2012年07期
4 李曉轉(zhuǎn);張長(zhǎng)革;楊剛;王戈;;一種近場(chǎng)條件下散射成像算法的研究[J];現(xiàn)代電子技術(shù);2012年07期
5 黃美秀;陳祝明;段銳;江朝抒;;編碼跳頻信號(hào)的低截獲性能分析[J];現(xiàn)代雷達(dá);2011年10期
6 黎海濤,徐繼麟;超寬帶雷達(dá)目標(biāo)回波建模[J];系統(tǒng)工程與電子技術(shù);2000年10期
7 賀知明,黃巍,張一冰,向敬成;適用于寬帶雷達(dá)的非相干雜波抑制方法[J];系統(tǒng)工程與電子技術(shù);2004年05期
8 黃巍,賀知明,向敬成;寬帶雷達(dá)能量積累與信號(hào)檢測(cè)方法研究[J];系統(tǒng)工程與電子技術(shù);2004年07期
9 肖建峰;黃培康;文樹梁;;一種寬帶雷達(dá)相干檢測(cè)的新方法[J];系統(tǒng)工程與電子技術(shù);2008年10期
10 李海英,楊汝良;超寬帶雷達(dá)的發(fā)展、現(xiàn)狀及應(yīng)用[J];遙感技術(shù)與應(yīng)用;2001年03期
相關(guān)博士學(xué)位論文 前3條
1 趙建宏;低空目標(biāo)探測(cè)及寬帶雷達(dá)信號(hào)檢測(cè)研究[D];電子科技大學(xué);2008年
2 李明;機(jī)載寬帶雷達(dá)信號(hào)處理若干問題研究[D];西安電子科技大學(xué);2007年
3 戴奉周;寬帶雷達(dá)信號(hào)處理[D];西安電子科技大學(xué);2010年
,本文編號(hào):2233946
本文鏈接:http://sikaile.net/kejilunwen/wltx/2233946.html