基于實(shí)值處理的聯(lián)合波束域雙基地MIMO雷達(dá)測(cè)角算法

徐保慶; 趙永波; 龐曉嬌

doi:10.11999/JEIT180766

基于實(shí)值處理的聯(lián)合波束域雙基地MIMO雷達(dá)測(cè)角算法

doi: 10.11999/JEIT180766

徐保慶¹,
趙永波^{1, 2, ,},
龐曉嬌¹

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

基金項(xiàng)目: 中央高?；究蒲袠I(yè)務(wù)費(fèi)項(xiàng)目(K5051202047)

詳細(xì)信息

作者簡(jiǎn)介:
徐保慶：男，1992年生，博士生，研究方向?yàn)槔走_(dá)信號(hào)處理、陣列信號(hào)處理和MIMO雷達(dá)

趙永波：男，1972年生，教授，博士生導(dǎo)師，研究方向?yàn)槔走_(dá)信號(hào)處理、自適應(yīng)信號(hào)處理和參數(shù)估計(jì)

龐曉嬌：女，1993年生，博士生，研究方向?yàn)閴嚎s感知和陣列信號(hào)處理

通訊作者:
趙永波　ybzhao@xidian.edu.cn

中圖分類號(hào): TN958
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出版歷程
- 收稿日期: 2018-08-03
- 修回日期: 2019-01-17
- 網(wǎng)絡(luò)出版日期: 2019-02-14
- 刊出日期: 2019-07-01

Joint Real-valued Beamspace-based Method for Angle Estimation in Bistatic MIMO Radar

1.
National Laboratory of Radar Signal Processing, Xidian University, Xi’an 710071, China
2.
Collaborative Innovation Center of Information Sensing and Understanding, Xidian University, Xi’an 710071, China

Funds: The Fundamental Research Funds for the Central Universities (K5051202047)

摘要

摘要: 該文提出一種基于實(shí)值處理的聯(lián)合波束域雙基地多輸入多輸出(MIMO)雷達(dá)測(cè)角方法。與直接采用離散傅里葉變換(DFT)空域?yàn)V波器的傳統(tǒng)波束域方法不同，該方法的空域?yàn)V波器通過(guò)凸優(yōu)化方法進(jìn)行設(shè)計(jì)，能夠靈活控制空域?yàn)V波器的帶寬并抑制旁瓣電平?；谶@種特性，設(shè)計(jì)的空域?yàn)V波器的主旁瓣比能夠得到很大提高，從而提高測(cè)角性能。更重要的是，所提算法對(duì)發(fā)射和接收波束矩陣的結(jié)構(gòu)進(jìn)行設(shè)計(jì)，這種特殊的結(jié)構(gòu)是構(gòu)造實(shí)值信號(hào)模型的必要條件。最后，該文通過(guò)建立映射關(guān)系的方法對(duì)插值誤差進(jìn)行補(bǔ)償。仿真結(jié)果驗(yàn)證了該算法的有效性。
- 多輸入多輸出雷達(dá) /
- 凸優(yōu)化 /
- 角度估計(jì) /
- 波束域轉(zhuǎn)換
Abstract: A joint real-valued beamspace-based method for angle estimation in bistatic Multiple-Input Multiple-Output (MIMO) radar is proposed. Instead of using the traditional Discrete Fourier Transform (DFT) beamspace filter, the proposed beamspace filter is designed through convex optimization, which can flexibly control the bandwidth and limit the sidelobe level. Based on this property, the mainlobe-to-sidelobe ratio of the proposed beamspace filter can be greatly improved, which results in the improved estimation performance. More importantly, the structure of the proposed beamspace matrix can be properly designed, which is indispensable in constructing the real-valued signal model. Finally, the mapping relationship to compensate the interpolation error is established. Simulation results verify the effectiveness of the proposed method.
- MIMO radar /
- Convex optimization /
- Angle estimation /
- Beamspace transformation

HTML全文

圖 1 空域?yàn)V波器性能比較

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圖 2 本文算法角度估計(jì)結(jié)果

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圖 3 非相關(guān)信源RMSE隨信噪比變化情況

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圖 4 非相關(guān)信源RMSE隨脈沖數(shù)變化情況

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圖 5 相關(guān)信源RMSE隨信噪比變化情況

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圖 6 相關(guān)信源檢測(cè)概率隨信噪比變化情況

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