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PIER PIER B PIER C PIER M PIER Letters PIER Photonics
2018-11-05
Wideband Transmitting Adaptive Digital Beamforming Based on Sub-Band Multiple Linear Constrained Minimum Variance Method
By
Guan Wang,

    Dr. Guan Wang

    College of Computer and Information Engineering

    Hohai University

    China

    Homepage

Mingwei Shen,

    Prof. Mingwei Shen

    College of Computer & Information Engineering

    Hohai University

    China

    Homepage

Jianfeng Li,

    Dr. Jianfeng Li

    College of Computer & Information Engineering

    Hohai University

    China

    Homepage

Di Wu,

    Dr. Di Wu

    College of Electronic & Information Engineering

    NUAA

    China

    Homepage

Dai-Yin Zhu

    Dr. Dai-Yin Zhu

    Department of Electronic Engineering

    Nanjing University of Aeronautics & Astronautics

    China

    Homepage

Progress In Electromagnetics Research M, Vol. 75, 113-120, 2018
doi:10.2528/PIERM18082101 | Google Scholar

Abstract
This paper describes a wideband transmitting adaptive digital beamforming (ADBF) scheme with nulls in the direction of interference. The scheme partitions the wideband transmit signal into independent sub-bands using an analysis filter bank behind each array element. In each channel, sub-band ADBF weight vector is computed based on the minimum variance criterion with multiple linear constraints to form the sub-band transmit beam. Finally, a wideband transmit adaptive beam is reconstructed through the synthesis filters. Theoretical analysis and simulation experiments show that this algorithm can form a wideband transmit beam with deep nulls, and the pointing direction of the null keeps unchanged regardless of frequency. The algorithm proposed in this paper has little computation load and is efficient to implement in engineering applications.
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Citation
Guan Wang, Mingwei Shen, Jianfeng Li, Di Wu, and Dai-Yin Zhu, "Wideband Transmitting Adaptive Digital Beamforming Based on Sub-Band Multiple Linear Constrained Minimum Variance Method," Progress In Electromagnetics Research M, Vol. 75, 113-120, 2018.
doi:10.2528/PIERM18082101
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