Results 261 to 270 of about 5,925,887 (294)
Some of the next articles are maybe not open access.
Performance of equal gain diversity with imperfect carrier phase recovery
WCNC. 1999 IEEE Wireless Communications and Networking Conference (Cat. No.99TH8466), 2003An analytical technique based on Gram-Charlier series expansion is presented for the computation of the error probability of equal gain combiner (EGC) with partially coherent fading signals. Detection loss caused by synchronization phase errors is computed for several bit error probability levels.
Muhieddin A. Najib, Vasant K. Prabhu
openaire +2 more sources
Minimum Symbol Error Rate Carrier Phase Recovery of QPSK
IEEE Transactions on Signal Processing, 2009This paper considers the problem of phase recovery of QPSK signals with phase-locked loops (PLL) using two new phase error detectors (PEDs) which are designed to minimize the probability of making a symbol decision error. The new PEDs resemble the PED derived from the maximum likelihood criterion.
Jake Gunther, Todd K. Moon
openaire +2 more sources
High Performance Carrier Phase Recovery for Coherent Optical QAM
Optical Fiber Communication Conference, 2015A simple feedforward phase recovery algorithm for M-QAM constellations is presented. Performance is evaluated as a function of laser linewidth and SNR for 16- and 64-QAM, and is compared to that of the Blind Phase Search algorithm.
Nikolaos Argyris 0002 +3 more
openaire +2 more sources
A Carrier Phase Recovery Scheme Based on Linear Kalman Filter
2018 10th International Conference on Advanced Infocomm Technology (ICAIT), 2018This paper introduces a carrier phase recovery scheme based on the linear Kalman filter (LKF). The scheme presents its advantages by simulation and experiment with the comparisons to blind phase search (BPS) algorithm. The simulation results show that LKF method has low OSNR penalty and low complexity.
Nannan Zhang +7 more
openaire +2 more sources
PSK Performance with Imperfect Carrier Phase Recovery
IEEE Transactions on Aerospace and Electronic Systems, 1976Methods are given to determine the performance loss caused by imperfect or noisy phase recovery and its use in coherent detection of a PSK signal. Numerical results for both binary and quaternary systems are presented so that these results combined with the characteristics of the phase recovery circuit will enable the "best" practical design of a PSK ...
openaire +1 more source
Low complexity carrier phase recovery for DVB-RCS2 standard
2012 International Conference on ICT Convergence (ICTC), 2012This paper introduces the simplified methods to reduce phase noise effect for DVB-RCS2 standard which was recently released as the next generation satellite VSAT(Very Small Aperture Terminal) system in Ku/Ka band. The relevant work deals with both linear and CPM modulation.
Pansoo Kim, Deock-Gil Oh
openaire +2 more sources
Maximum Likelihood Carrier Phase Recovery for Linear Suppressed-Carrier Digital Data Modulations
IEEE Transactions on Communications, 1986The problem of ML estimation of the Phase of a general data-modulated carrier is considered. The shortcomings of current iterative approaches to the problem are pointed out, and the correct conceptual approach is proposed. The true ML estimator is then obtained and found to be nonimplementable.
openaire +2 more sources
Phase recovery of the coherent carrier frequency using digital phase filter
Radioelectronics and Communications Systems, 2013This paper considers a phase recovery method for the coherent carrier frequency of the signal Revised by a digital receiver using a unit of digital recovery of the coherent carrier phase. The use of digital phase filter makes it possible to do without the application of traditional phase-locked loop frequency control.
openaire +2 more sources
Phase recovery of the coherent carrier frequency in synchronous detection
Radioelectronics and Communications Systems, 2012This paper considers a method of phase recovery in synchronous detectors that ensure the synchronous detection of signals with amplitude modulation, amplitude-phase modulation, angle modulation or with appropriate manipulations. In addition a transfer function was obtained for the phase-locked loop of direct control and the simulation results of ...
openaire +2 more sources
Planning for Post-Pandemic Cancer Care Delivery: Recovery or Opportunity for Redesign?
Ca-A Cancer Journal for Clinicians, 2021Kathryn A Gold, Hope Rugo, Pelin Çınar
exaly