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四元數(shù)域?qū)显鰪V寬線性自適應(yīng)波束形成

劉志文,  王荔,  徐友根

劉志文, 王荔, 徐友根. 四元數(shù)域?qū)显鰪V寬線性自適應(yīng)波束形成[J]. 電子與信息學(xué)報, 2017, 39(7): 1525-1531. doi: 10.11999/JEIT160988
引用本文: 劉志文, 王荔, 徐友根. 四元數(shù)域?qū)显鰪V寬線性自適應(yīng)波束形成[J]. 電子與信息學(xué)報, 2017, 39(7): 1525-1531. doi: 10.11999/JEIT160988
LIU Zhiwen, WANG Li, XU Yougen. Quaternion-valued Widely Linear Adaptive Beamformingvia Involution Augmentation[J]. Journal of Electronics & Information Technology, 2017, 39(7): 1525-1531. doi: 10.11999/JEIT160988
Citation: LIU Zhiwen, WANG Li, XU Yougen. Quaternion-valued Widely Linear Adaptive Beamformingvia Involution Augmentation[J]. Journal of Electronics & Information Technology, 2017, 39(7): 1525-1531. doi: 10.11999/JEIT160988

四元數(shù)域?qū)显鰪V寬線性自適應(yīng)波束形成

doi: 10.11999/JEIT160988
基金項目: 

國家自然科學(xué)基金(61490691, 61331019)

Quaternion-valued Widely Linear Adaptive Beamformingvia Involution Augmentation

Funds: 

The National Natural Science Foundation of China (61490691, 61331019)

  • 摘要: 該文提出一種基于4元數(shù)的寬線性自適應(yīng)波束形成方法，該方法在利用4元數(shù)構(gòu)建單個陣元輸出的基礎(chǔ)上，通過充分挖掘4元數(shù)的3種對合信息，聯(lián)合信號的非圓特性，建立4元數(shù)域?qū)显鰪V信號模型，進(jìn)而實現(xiàn)4元數(shù)域?qū)捑€性自適應(yīng)波束形成。同傳統(tǒng)4元數(shù)波束形成技術(shù)相比，該方法對非圓信號的接收性能顯著提升，同時可以實現(xiàn)陣列虛擬孔徑擴(kuò)展，增大自適應(yīng)波束形成干擾抑制自由度。仿真實驗驗證了所提波束形成方法的性能。
    Abstract: An adaptive beamformer based on quaternion-valued widely linear processing is proposed, in which the output is expressed in quaternions for each array element. Taking into account the array output vector and its three involutions simultaneously, a quaternion-valued augmented signal model is established to exploit the noncircular information of the desired signal. The involution augmented adaptive beamforming is finally fulfilled based on the quaternion-valued widely linear processing. Compared with the conventional quaternion beamformers, the proposed beamformer has an improved reception capability for noncircular signals. The aperture of the array is extended and hence the degree-of-freedom of interference suppression is increased via widely linear processing. Simulations results illustrate the performance of the proposed beamformer.
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  • 文章訪問數(shù):  1467
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出版歷程
  • 收稿日期:  2016-09-29
  • 修回日期:  2017-02-10
  • 刊出日期:  2017-07-19

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