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Co-frequency signal interference detection based on multiple antennas and multiple channels

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, , Citation Jianli Shuai et al 2021 J. Phys.: Conf. Ser. 1738 012005 DOI 10.1088/1742-6596/1738/1/012005

1742-6596/1738/1/012005

Abstract

Co-frequency signal interference detection plays an absolute role in eliminating same-frequency interference. Eliminating same-frequency interference can improve signal-to-noise ratio and reduce communication errors. For an uncoded multi-antenna multi-channel system with Ni transmitting antennas and Nj receiving antennas, the algorithm is optimized on the basis of the QRD-M algorithm, and a depth-first QRD-M algorithm based on single-layer ML (ML-1 -IQRM algorithm), compared the performance of the ML-1-IQRM algorithm with the original QRD-M algorithm. The experimental results show that the ML-1-IQRM algorithm can better detect the interference of the same frequency signal.

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10.1088/1742-6596/1738/1/012005