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WAS-GMTI模式下基于Relax算法的雜波抑制和參數(shù)估計(jì)方法

閆賀,  朱岱寅,  張勁東,  王旭東,  李勇,  毛新華,  吳迪

閆賀, 朱岱寅, 張勁東, 王旭東, 李勇, 毛新華, 吳迪. WAS-GMTI模式下基于Relax算法的雜波抑制和參數(shù)估計(jì)方法[J]. 電子與信息學(xué)報(bào), 2016, 38(12): 3042-3048. doi: 10.11999/JEIT160859
引用本文: 閆賀, 朱岱寅, 張勁東, 王旭東, 李勇, 毛新華, 吳迪. WAS-GMTI模式下基于Relax算法的雜波抑制和參數(shù)估計(jì)方法[J]. 電子與信息學(xué)報(bào), 2016, 38(12): 3042-3048. doi: 10.11999/JEIT160859
YAN He, ZHU Daiyin, ZHANG Jindong, WANG Xudong, LI Yong, MAO Xinhua, WU Di. Clutter Suppression and Parameter Estimation Method in WAS-GMTI Mode Based on Relax Algorithm[J]. Journal of Electronics & Information Technology, 2016, 38(12): 3042-3048. doi: 10.11999/JEIT160859
Citation: YAN He, ZHU Daiyin, ZHANG Jindong, WANG Xudong, LI Yong, MAO Xinhua, WU Di. Clutter Suppression and Parameter Estimation Method in WAS-GMTI Mode Based on Relax Algorithm[J]. Journal of Electronics & Information Technology, 2016, 38(12): 3042-3048. doi: 10.11999/JEIT160859

WAS-GMTI模式下基于Relax算法的雜波抑制和參數(shù)估計(jì)方法

doi: 10.11999/JEIT160859
基金項(xiàng)目: 

國家自然科學(xué)基金(61501231)，江蘇省自然科學(xué)基金 (BK20150759)，航空科學(xué)基金(20152052027)，中央高校基本科研業(yè)務(wù)費(fèi)專項(xiàng)資金(3082016NJ20160006)

Clutter Suppression and Parameter Estimation Method in WAS-GMTI Mode Based on Relax Algorithm

Funds: 

The National Natural Science Foundation of China (61501231), The Jiangsu Provincial Natural Science Foundation (BK20150759), The Aeronautical Science Foundation of China (20152052027), The Fundamental Research Funds for the Central Universities (3082016NJ20160006)

  • 摘要: 該文提出一種基于Relax算法的雜波抑制和參數(shù)估計(jì)方法。該方法適用于多通道廣域監(jiān)視GMTI系統(tǒng)。在分析廣域監(jiān)視模式回波組成的基礎(chǔ)上，結(jié)合Relax算法，設(shè)計(jì)了進(jìn)行雜波抑制的迭代方法。相對(duì)于降維空時(shí)自適應(yīng)處理(STAP)，該方法不需要估計(jì)雜波加噪聲的協(xié)方差矩陣，因此可以在非均勻雜波環(huán)境下取得較優(yōu)的雜波抑制效果。該文同時(shí)指出，在雜波抑制的基礎(chǔ)上，針對(duì)存在動(dòng)目標(biāo)的距離-多普勒單元繼續(xù)進(jìn)行迭代，可實(shí)現(xiàn)動(dòng)目標(biāo)參數(shù)的精確估計(jì)。仿真結(jié)果驗(yàn)證了上述方法的有效性。
    Abstract: This paper proposes a clutter suppression and parameter estimation method based on Relax algorithm. The method is fit for the multi-channel Wide Area Surveillance (WAS) GMTI system. After analyzing the components of radar echoes in WAS-GMTI mode, an iterative clutter suppression method based on Relax algorithm is designed. Compared with the reduced-dimension Space Time Adaptive Processing (STAP) algorithm, the proposed method achieves better clutter suppression results in the nonhomogeneous environment since it has no need to estimate the clutter plus noise covariance matrix. Besides, based on the clutter suppression results, precision parameters of moving targets can be obtained if the iterations are continued in the range-Doppler cells with the detected moving targets. The proposed method is validated by digital simulations.
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  • ENTZMINGER J N, SENIOR JR, FOWLER C A, et al. JointSTARS and GMTI: Past, present and future[J]. IEEE Transactions on Aerospace and Electronic Systems, 1999, 35(2): 748-761. doi: 10.1109/7.766956.
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出版歷程
  • 收稿日期:  2016-08-22
  • 修回日期:  2016-11-22
  • 刊出日期:  2016-12-19

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