Carrier recovery for M-QAM signals based on a block estimation process with Kalman filter

T Inoue, S Namiki - Optics express, 2014 - opg.optica.org
A novel carrier recovery scheme for demodulating optical M-ary quadrature amplitude
modulation (M-QAM) signals is proposed and demonstrated. The proposed scheme treats a …

A measuring method of the single-phase AC frequency, phase, and reactive power based on the Hilbert filtering

P Hao, W Zanji, C Jianye - IEEE Transactions on …, 2007 - ieeexplore.ieee.org
This paper presents a novel measuring method based on the Hilbert filtering for the digital
monitoring of the single-phase ac frequency, phase, and reactive power. According to this …

Multiple-loop digital control method for a 400-Hz inverter system based on phase feedback

C Li, SM Ji, DP Tan - IEEE Transactions on Power Electronics, 2012 - ieeexplore.ieee.org
To keep phase balance and improve output voltage quality, a novel multiple-loop control
system in 400-Hz inverter power supply based on unipolar sinusoidal pulse width …

Digitally-synthesized loop filter circuit particularly useful for a phase locked loop

MH Perrott, RT Baird, Y Huang - US Patent 6,630,868, 2003 - Google Patents
5,027,085. A 6/1991 DeVito 5,036,294. A* 7/1991 McCaslin.................... 33 1/17 5,036,298 A
7/1991 Buzachelli 5,339,561 A 8/1994 Weber 5,373.255 A 12/1994 Bray et al. 5,495,512 A …

Brillouin amplifier noise characterization by a coherent receiver and digital signal processing

M Pelusi, T Inoue, S Namiki - Journal of Lightwave Technology, 2020 - opg.optica.org
Brillouin amplification of a CW laser is evaluated by a coherent receiver and offline digital
signal processing (DSP) to assess electric field distortions relevant to noise sensitive …

Synchronization schemes for packet OFDM system

H Tang, KY Lau, RW Brodersen - … International Conference on …, 2003 - ieeexplore.ieee.org
A complete OFDM synchronization chain is proposed based on practical synchronization
schemes. The synchronization is accomplished in three steps: frame detection (or timing) …

OFDMA for the 4/sup th/generation cellular networks

G Parsaee, A Yarali - Canadian Conference on Electrical and …, 2004 - ieeexplore.ieee.org
An extended overview on the orthogonal frequency division multiple access (OFDMA)
technique and its applications in 4/sup th/generation cellular mobile networks is presented …

[PDF][PDF] ALL digital phase-locked loop (ADPLL): a survey

K Lata, M Kumar - International Journal of Future Computer and …, 2013 - researchgate.net
ADPLL is contributing great role in advancement in control system and digital
communication since 1980. Design of ADPLL with integrated circuit (IC) techniques has …

Guard-band-less and polarization-insensitive tunable wavelength converter for phase-modulated signals: Demonstration and signal quality analyses

T Inoue, K Tanizawa, S Namiki - Journal of lightwave technology, 2014 - opg.optica.org
We have designed a practical, tunable wavelength converter, using cascaded two-stage
single-pump degenerated four-wave mixing processes in polarization-maintaining highly …

Novel synchronization for TDS-OFDM-based digital television terrestrial broadcast systems

ZW Zheng, ZX Yang, CY Pan… - IEEE Transactions on …, 2004 - ieeexplore.ieee.org
As an effective technique for combating multipath fading and for high-bit-rate transmission
over wireless channels, orthogonal frequency-division multiplexing (OFDM) is extensively …