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基于線(xiàn)性調(diào)頻時(shí)寬的MIMO雷達(dá)正交波形設(shè)計(jì)

李慧,  趙永波,  程增飛

李慧, 趙永波, 程增飛. 基于線(xiàn)性調(diào)頻時(shí)寬的MIMO雷達(dá)正交波形設(shè)計(jì)[J]. 電子與信息學(xué)報(bào), 2018, 40(5): 1151-1158. doi: 10.11999/JEIT170426
引用本文: 李慧, 趙永波, 程增飛. 基于線(xiàn)性調(diào)頻時(shí)寬的MIMO雷達(dá)正交波形設(shè)計(jì)[J]. 電子與信息學(xué)報(bào), 2018, 40(5): 1151-1158. doi: 10.11999/JEIT170426
LI Hui, ZHAO Yongbo, CHENG Zengfei. MIMO Radar Orthogonal Waveform Set Design Based on Chirp Durations[J]. Journal of Electronics & Information Technology, 2018, 40(5): 1151-1158. doi: 10.11999/JEIT170426
Citation: LI Hui, ZHAO Yongbo, CHENG Zengfei. MIMO Radar Orthogonal Waveform Set Design Based on Chirp Durations[J]. Journal of Electronics & Information Technology, 2018, 40(5): 1151-1158. doi: 10.11999/JEIT170426

基于線(xiàn)性調(diào)頻時(shí)寬的MIMO雷達(dá)正交波形設(shè)計(jì)

doi: 10.11999/JEIT170426
  • 1.

    (西安電子科技大學(xué)雷達(dá)信號(hào)處理國(guó)家重點(diǎn)實(shí)驗(yàn)室 西安 710071) ②(西安電子科技大學(xué)信息感知技術(shù)協(xié)同創(chuàng)新中心 西安 710071)

MIMO Radar Orthogonal Waveform Set Design Based on Chirp Durations

  • 1.

    (National Key Laboratory of Radar Signal Processing, Xidian University, Xi&rsquo

  • 摘要: 線(xiàn)性調(diào)頻(LFM)信號(hào)是一種被廣泛應(yīng)用的大時(shí)寬帶寬積信號(hào)，利用LFM信號(hào)的多樣性可設(shè)計(jì)多輸入多輸出(MIMO)雷達(dá)的正交波形。該文針對(duì)現(xiàn)有波形相關(guān)函數(shù)存在的問(wèn)題，以理論分析為基礎(chǔ)，提出一種基于LFM時(shí)寬的發(fā)射波形，并給出了一種相應(yīng)的正交波形設(shè)計(jì)方法。該方法以峰值旁瓣電平為準(zhǔn)則，利用序列二次規(guī)劃對(duì)各子脈沖LFM信號(hào)的時(shí)寬進(jìn)行優(yōu)化設(shè)計(jì)。仿真結(jié)果表明，與現(xiàn)有方法相比，所設(shè)計(jì)波形具有較低的自相關(guān)旁瓣電平和互相關(guān)電平。此外，通過(guò)數(shù)值實(shí)驗(yàn)分析了相關(guān)性能隨波形個(gè)數(shù)及子脈沖個(gè)數(shù)的變化關(guān)系。
    Abstract: Due to the large time-bandwidth product, Linear Frequency Modulation (LFM) signals are widely used, and their diversity can be applied to orthogonal waveform set design for MIMO radar. To solve the problems of the correlation functions of the existing waveforms, detailed analysis is made, a new waveform based on chirp durations is proposed, and the orthogonal waveform set design method is given subsequently. Peak sidelobe level is calculated for the cost function, the chirp durations of subpulses are optimized by Sequential Quadratic Programming (SQP). Simulation results show that the designed waveforms have lower autocorrelation sidelobe level and crosscorrelation level compared with the present method. In addition, relationships among autocorrelation sidelobe level, crosscorrelation level and the size of orthogonal waveforms are studied via numerical experiments.
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出版歷程
  • 收稿日期:  2017-05-09
  • 修回日期:  2018-01-30
  • 刊出日期:  2018-05-19

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