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載機(jī)偏航下基于廣義相鄰多波束自適應(yīng)處理的低空風(fēng)切變風(fēng)速估計(jì)

李海,  李怡靜,  吳仁彪

李海, 李怡靜, 吳仁彪. 載機(jī)偏航下基于廣義相鄰多波束自適應(yīng)處理的低空風(fēng)切變風(fēng)速估計(jì)[J]. 電子與信息學(xué)報(bào), 2019, 41(7): 1728-1734. doi: 10.11999/JEIT180758
引用本文: 李海, 李怡靜, 吳仁彪. 載機(jī)偏航下基于廣義相鄰多波束自適應(yīng)處理的低空風(fēng)切變風(fēng)速估計(jì)[J]. 電子與信息學(xué)報(bào), 2019, 41(7): 1728-1734. doi: 10.11999/JEIT180758
Hai LI, Yijing LI, Renbiao WU. Generalized Adjacent Multi-beam Adaptive Processing Based Low-altitude Wind-shear Wind Speed Estimation under Aircraft Yawing[J]. Journal of Electronics & Information Technology, 2019, 41(7): 1728-1734. doi: 10.11999/JEIT180758
Citation: Hai LI, Yijing LI, Renbiao WU. Generalized Adjacent Multi-beam Adaptive Processing Based Low-altitude Wind-shear Wind Speed Estimation under Aircraft Yawing[J]. Journal of Electronics & Information Technology, 2019, 41(7): 1728-1734. doi: 10.11999/JEIT180758

載機(jī)偏航下基于廣義相鄰多波束自適應(yīng)處理的低空風(fēng)切變風(fēng)速估計(jì)

doi: 10.11999/JEIT180758 cstr: 32379.14.JEIT180758

  • 中國(guó)民航大學(xué)天津市智能信號(hào)與圖像處理重點(diǎn)實(shí)驗(yàn)室 ??天津 ??300300

基金項(xiàng)目: 國(guó)家自然科學(xué)基金(61571442, 61471365, U1633106)，中國(guó)民航大學(xué)藍(lán)天青年學(xué)者培養(yǎng)經(jīng)費(fèi)，中央高校基本科研業(yè)務(wù)費(fèi)項(xiàng)目(3122017007)
詳細(xì)信息
    作者簡(jiǎn)介:

    李海：男，1976年生，教授，碩士生導(dǎo)師，研究方向?yàn)闄C(jī)載氣象雷達(dá)信號(hào)處理、分布式目標(biāo)檢測(cè)與參數(shù)估計(jì)、動(dòng)目標(biāo)檢測(cè)與參數(shù)估計(jì)等

    李怡靜：女，1994年生，碩士生，研究方向?yàn)闄C(jī)載氣象雷達(dá)信號(hào)處理

    吳仁彪：男，1966年生，教授，博士生導(dǎo)師，研究方向?yàn)榭展芎兔窈桨踩悄苄畔⑻幚砗娇者\(yùn)輸大數(shù)據(jù)、衛(wèi)星導(dǎo)航抗干擾技術(shù)、民航無(wú)線(xiàn)電干擾監(jiān)測(cè)與自適應(yīng)抑制、通用航空、雷達(dá)信號(hào)處理等

    通訊作者:

    李?！?a href="mailto:elisha1976@163.com">elisha1976@163.com

  • 中圖分類(lèi)號(hào): TN959.4

Generalized Adjacent Multi-beam Adaptive Processing Based Low-altitude Wind-shear Wind Speed Estimation under Aircraft Yawing

  • Tianjin Key Lab for Advanced Signal Processing, Civil Aviation University of China, Tianjin 300300, China

Funds: The National Natural Science Foundation of China (61571442, 61471365, U1633106), The Foundation for Sky Young Scholars of Civil Aviation University of China, The National University’s Basic Research Foundation of China (3122017007)
  • 摘要: 該文提出一種載機(jī)偏航下基于廣義相鄰多波束(GMB)自適應(yīng)處理的低空風(fēng)切變風(fēng)速估計(jì)的方法，該方法首先利用基于回波數(shù)據(jù)的雜波距離依賴(lài)性補(bǔ)償方法對(duì)雜波進(jìn)行距離依賴(lài)性矯正，估計(jì)出雜波協(xié)方差矩陣。然后同時(shí)組合空域的相鄰多個(gè)波束與時(shí)域的相鄰多個(gè)多普勒通道來(lái)計(jì)算降維變換矩陣，并對(duì)待測(cè)距離單元內(nèi)的雷達(dá)回波數(shù)據(jù)進(jìn)行降維處理，進(jìn)而構(gòu)造GMB自適應(yīng)處理器的最優(yōu)自適應(yīng)權(quán)矢量對(duì)降維后的回波數(shù)據(jù)實(shí)現(xiàn)自適應(yīng)濾波。最后完成載機(jī)偏航下風(fēng)場(chǎng)速度的準(zhǔn)確估計(jì)。仿真結(jié)果驗(yàn)證了該方法能夠在載機(jī)偏航情況下，獲得風(fēng)場(chǎng)速度的有效估計(jì)。
    Abstract: This paper presents a method of low-altitude wind-shear speed estimation based on Generalized adjacent Multi-Beam (GMB) adaptive processing under aircraft yawing. The clutter range-dependence compensation method based on echo data is first used to correct the range dependence of clutter for estimating the clutter covariance matrix. Then the dimension-reduced transform matrix is calculated by combining adjacent multiple beams in the airspace and adjacent multiple Doppler channels in time domain simultaneously, and the radar echo data of the measured range bin is reduced in dimension, and then the optimal weight vector of the GMB adaptive processor is constructed to filter adaptively the dimension-reduced data. Finally, the accurate estimation of the wind speed under the aircraft yawing is got. The simulation results show that the proposed method can obtain an effective estimation of wind speed under aircraft yawing.
    • HTML全文

  • 圖  1  機(jī)載前視陣模型圖

    圖  2  廣義相鄰多波束自適應(yīng)處理器結(jié)構(gòu)圖

    圖  3  廣義相鄰多波束自適應(yīng)處理方法原理圖

    圖  4  雷達(dá)回波信號(hào)的空時(shí)2維譜

    圖  5  第78號(hào)距離單元濾波器頻響圖

    圖  6  本文方法在不同偏航誤差下的風(fēng)速估計(jì)結(jié)果對(duì)比圖

    圖  7  本文方法同其他方法的風(fēng)速估計(jì)結(jié)果對(duì)比圖

    圖  8  本文方法在不同空域波束數(shù)情況下的風(fēng)速估計(jì)結(jié)果對(duì)比圖(多普勒通道數(shù)為3)

    圖  9  本文方法在不同多普勒通道數(shù)情況下的風(fēng)速估計(jì)結(jié)果對(duì)比圖(空域波束數(shù)為5)

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  • 收稿日期:  2018-08-03
  • 修回日期:  2019-01-11
  • 網(wǎng)絡(luò)出版日期:  2019-02-14
  • 刊出日期:  2019-07-01

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