Results 221 to 230 of about 204,888 (292)

On the Tracking Performance of a Family of Generalized Constant Modulus Algorithm

2007 IEEE International Conference on Acoustics, Speech and Signal Processing - ICASSP '07, 2007
Based on an energy conservation relation, the tracking performance of a family of generalized constant modulus algorithm (GCMA) is analyzed in this paper. Both theoretical analysis and simulation results validate the excellent tracking performance of the extended constant modulus algorithm (ECMA) in some situations.
Xian-Da Zhang
exaly   +2 more sources

Constant Modulus Algorithm in intelligent antenna

Proceedings of 2012 International Conference on Measurement, Information and Control, 2012
Intelligent antenna technology, as one of the important technology in mobile communication field, realizes the beam moving by adjusting the weighted amplitude and phase of every array to change the direction of the array antenna pattern, as the mobile user moves.
null Yu Liu, null Bingkun Gao, null Yan Wang, null Running Gao, null Liang Wang   +4 more
openaire   +2 more sources

A robust adaptive weighted constant modulus algorithm for blind equalization of wireless communications systems under impulsive noise environment

AEU - International Journal of Electronics and Communications, 2018
Feng Dazheng
exaly   +2 more sources

Real-Time Polarization Demultiplexing by Multi-Thread Constant Modulus Algorithm for Fully Softwarized Access Networks

Journal of Lightwave Technology, 2023
Optical access networks are replacing dedicated hardware-based architectures with architectures centered on general-purpose servers based on network function virtualization (NFV) and the software-defined network (SDN) in order to efficiently support ...
Takahiro Suzuki, Sang-Yuep Kim, J. Kani, Tomoaki Yoshida   +3 more
semanticscholar   +1 more source

Vital Sign Tracking Using Modified Constant Modulus Algorithm Adaptive Array

IEEE Sensors Letters, 2023
This letter proposes a modified constant modulus algorithm (CMA)-based beamforming method for a multiple-input–multiple-output (MIMO) radar to track and detect vital signs via blind processing. Our method consists of two key functions: 1) the beamforming
Yuta Ogawa, N. Honma, Kentaro Murata, M. Iwai, Koichiro Kobayashi   +4 more
semanticscholar   +1 more source

An Improved Constant Modulus Algorithm and Its Generalized Form for Blind Equalization

International Symposium on Circuits and Systems, 2021
In wireless communication systems, the conventional constant modulus algorithm incurs artificial error and steady state misadjustment. In this study, an improved constant modulus algorithm (ICMA) and its generalized form are proposed for blind ...
W. Zheng, Da-Zheng Feng, Zhu Pan, Jin Li
semanticscholar   +1 more source

Convergence analysis of the constant modulus algorithm

IEEE Transactions on Information Theory, 2003
Summary: We study the global convergence of the stochastic gradient constant modulus algorithm (CMA) in the absence of channel noise as well as in the presence of channel noise. The case of fractionally spaced equalizer and/or multiple antenna at the receiver is considered. For the noiseless case, we show that with proper initialization, and with small
Onkar Dabeer, Elias Masry
openaire   +1 more source

Convergence behavior of the constant modulus algorithm

ICASSP '83. IEEE International Conference on Acoustics, Speech, and Signal Processing, 2005
An adaptive filter algorithm has been developed and introduced [1] for use with constant envelope waveforms, e.g., FM communication signals. It has proven capable of suppressing additive interferers as well as equalization, without the need for a priori statistical information.
Michael G. Larimore, John R. Treichler
openaire   +1 more source

QCQP With Extra Constant Modulus Constraints: Theory and Application to SINR Constrained Mmwave Hybrid Beamforming

IEEE Transactions on Signal Processing, 2022
The constant modulus constraint is widely used in analog beamforming, hybrid beamforming, intelligent reflecting surface design, and radar waveform design.
Xin He, Jiangzhou Wang
semanticscholar   +1 more source

On the Constant Modulus Criterion: A New Algorithm

2010 IEEE International Conference on Communications, 2010
In this paper, we propose a new iterative algorithm for the minimization of the constant modulus (CM) criterion. It is composed of two stages: Prewhitening followed by complex Givens rotations, whence the name Givens CMA (GCMA). Initially, prewhitening reduces the channel matrix into a unitary matrix.
Aïssa Ikhlef, Karim Abed-Meraim, Daniel Le Guennec   +2 more
openaire   +1 more source