Results 21 to 30 of about 204,888 (292)
Optics Express, 2018 In this paper, we propose a constant modulus algorithm (CMA) for mode division multiplexing (MDM) systems with improved convergence performance. In order to adapt to sparse channels with large differential mode group delay (DMGD) in MDM systems, the CMA ...
Junhe Zhou, G. Zheng
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EURASIP Journal on Wireless Communications and Networking, 2007 The problem of blind recovery of QAM and PSK signals for multiple-input multiple-output (MIMO) communication systems is investigated. We propose a simplified version of the well-known constant modulus algorithm (CMA), named simplified CMA (SCMA).
Ikhlef Aissa, Le Guennec Daniel
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An Analytical Multimodulus Algorithm for Blind Demodulation in a Time-Varying MIMO Channel Context
International Journal of Digital Multimedia Broadcasting, 2010 This paper addresses the issue of blind multiple-input multiple-output (MIMO) demodulation of communication signals, with time-varying channels and in an interception context.
Steredenn Daumont, Daniel Le Guennec
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Robust adaptive beamforming using modified constant modulus algorithms
Journal of Electrical Engineering, 2022 This paper addresses the self-nulling phenomenon also known as the self-cancellation in adaptive beamformers. Optimum beamforming requires knowledge of the desired signal characteristics, either its statistics, its direction-of-arrival, or its response ...
Zeeshan Ahmad +3 more
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Constant-Modulus Secure Analog Beamforming for an IRS-Assisted Communication System With Large-Scale Antenna Array [PDF]
IEEE Transactions on Information Forensics and SecurityPhysical layer security (PLS) is an important technology in wireless communication systems to safeguard communication privacy and security between transmitters and legitimate users.
Weijie Xiong +3 more
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EURASIP Journal on Advances in Signal Processing, 2008 We propose a global convergence baud-spaced blind equalization method in this paper. This method is based on the application of both generalized pattern optimization and channel surfing reinitialization. The potentially used unimodal cost function relies
Charles Tatkeu +3 more
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Entropy, 2023 In this paper, we design constant modulus waveforms for dual-function radar-communication (DFRC) systems based on a multi-input multi-output (MIMO) configuration of sensors for a far-field scenario.
Ahmed Saleem +8 more
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IET Radar, Sonar & Navigation, 2023 This study considers designing constant‐modulus waveforms for multiple‐input‐multiple‐output radar in spectrally crowded environment. The mutual information is used as the waveform design metric.
Xuyang Wang, Bo Tang, Da Li, Wenjun Wu
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Constant modulus algorithm for blind equalization under impulsive noise environments
Tongxin xuebao, 2009 The presence of α stable distributed ambient channel noise in wireless systems can degrade the per-formance of existing constamt modulus（CM） equalizers.The problem of blind equalization in noisy communication channels was investigated by addressing the ...
GUO Ying1 +3 more
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Effects of pore characteristics on SiCf/SiC cladding equivalent Young's modulus
He jishu, 2021 BackgroundSilicon carbide composite has good stabilities in heat, mechanics and chemistry, therefore, become an important candidate cladding for accident tolerant fuel of nuclear power plant.
LI Yi, ZHANG Aimin
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