Vol. 71

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2018-07-24

Application of an Improved GSC in TTE Communication with Antenna Array

By Ning Zhang, Yu-Zhong Jiang, and Ming-Ming Li
Progress In Electromagnetics Research M, Vol. 71, 41-50, 2018
doi:10.2528/PIERM18052701

Abstract

By analyzing the characteristics of the super low frequency (SLF) electromagnetic wave in through the earth (TTE) communication, an orthogonal array of magnetic antenna is proposed for receiving SLF signal, and a new robust adaptive beamformer is used to process the received signals. The proposed beamformer is a multi-input generalized sidelobe canceller (GSC) with a coefficient constrained adaptive blocking matrix and a filter based on minimum mean-square error (MMSE) criterion. It can reduce the leakage of the desired signal and enhance the capability of interference cancellation. The received signals of the main antennas and the reference antennas of the antenna array are input to the beamformer as desired signal and reference signal, respectively. Both simulated and experimental results show that the proposed beamformer can suppress the single-tone and phase modulation interference, whose frequency is close to the desired signal's frequency. The proposed beamformer has better effect and robustness on interference cancellation than the traditional GSC.

Citation


Ning Zhang, Yu-Zhong Jiang, and Ming-Ming Li, "Application of an Improved GSC in TTE Communication with Antenna Array," Progress In Electromagnetics Research M, Vol. 71, 41-50, 2018.
doi:10.2528/PIERM18052701
http://www.jpier.org/PIERM/pier.php?paper=18052701

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