Results 71 to 80 of about 44,063 (255)
The Modified Mean Filter to Remove AWGN [PDF]
The Journal of the Korean Institute of Information and Communication Engineering, 2011 The image signals are corrupted by various noises in signal processing and the noises caused the degradation phenomenon. gaussian noise occurs in the process of transmission. Many studies are being accomplished to restore those signals which corrupted by additive gaussian noise. In this paper, the algorithm is proposed to remove AWGN.
Yinyu Gao, Nam-Ho Kim
openaire +1 more source
An Energy‐Tiered Clustering‐Based Blind Detector for RIS‐RSM Systems
IET Communications, Volume 20, Issue 1, January/December 2026.This paper proposes an energy‐tiered structure initialization (ETSI) algorithm for blind detection in reconfigurable intelligent surface (RIS)‐assisted spatial modulation systems. By decomposing the modulation constellation into multiple energy tiers and leveraging structured prototype initialization with tier‐normalized refinement, ETSI effectively ...
Lijuan Zhang +2 more
wiley +1 more source
Simulação de um canal AWGN M-PSK
Revista Principia, 1997 Este trabalho tem por objetivo a simulação de um canal M-PSK em computador para avaliação destas famílias de modulação quando submetidas a ruído aditivo branco Gaussiano - AWGN.
Francisco Marcos de Assis +2 more
doaj +1 more source
IET Communications, Volume 20, Issue 1, January/December 2026.This paper investgates a unmanned aerial vehicle‐assisted non‐orthogonal multiple access‐integrated sensing and communication system, which fuses the UAV's echo signal and target position by employing the extended Kalman filter algorithum to achieve high‐precision prediction of the target trajectory.
Dongsheng Han, Zian Wang, Yan Wang
wiley +1 more source
Pulse Response Measurement and Processing by Six-Port Reflectometr
Advances in Electrical and Electronic Engineering, 2008 In this paper the pulse response estimation of radio channel by Six-port reflectometer (SPR) is described. The measurement of pulse response is in real time, with baseband conversion and without demodulation.
Norbert Majer +3 more
doaj
IET Communications, Volume 20, Issue 1, January/December 2026.The proposed model includes a dual‐stream deep learning architecture which has a 1D convolutional neural network (CNN)‐based spectral encoder and a graph convolutional network (GCN)‐based spatial encoder for extracting the frequency‐domain and node‐topology features. Experimental analysis of the proposed model is performed using the Real‐World Wireless
P. Ramakrishnan +3 more
wiley +1 more source
IET Communications, Volume 20, Issue 1, January/December 2026.This paper addresses channel estimation in mmWave (millimetre wave) hybrid MIMO (multiple‐input multiple‐output) systems impaired by residual transceiver hardware nonidealities, modelled as additive non‐Gaussian noise via Bussgang decomposition. A hyperparameter‐free maximum Versoria criterion (MVC)‐based channel estimator is proposed, featuring a ...
Rangeet Mitra +5 more
wiley +1 more source
, 2011 The mutual information between a complex-valued channel input and its complex-valued output is decomposed into four parts based on polar coordinates: an amplitude term, a phase term, and two mixed terms.
Essiambre, René-Jean +4 more
core +1 more source
Acceleration‐Aware Estimation and Compensation of Doppler Scale for Mobile UWA OFDM Systems
IET Communications, Volume 20, Issue 1, January/December 2026.We propose a novel method to estimate and compensate for the Doppler scale caused by acceleration in orthogonal frequency division multiplexing (OFDM)‐based underwater acoustic (UWA) systems. Simulation results under additive white Gaussian noise (AWGN), synthetic multipath and realistic waymark channel conditions demonstrate that the proposed approach
Yong‐Ho Cho, Seung‐Geun Kim
wiley +1 more source
Feedback Communication Systems with Limitations on Incremental Redundancy [PDF]
, 2013 This paper explores feedback systems using incremental redundancy (IR) with noiseless transmitter confirmation (NTC). For IR-NTC systems based on {\em finite-length} codes (with blocklength $N$) and decoding attempts only at {\em certain specified ...
Chen, Tsung-Yi +3 more
core