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Noise reduction in speech signals using a TMS320C31 digital signal processor
(2000-12-01)
This paper describes a speech enhancement system (SES) based on a TMS320C31 digital signal processor (DSP) for real-time application. The SES algorithm is based on a modified spectral subtraction method and a new speech ...
Conversor CA-CA de elevado fator de potência para aplicações com geradores de Ímã permanente
(2010-12-01)
This paper proposes and describes a high power factor AC-AC converter for naval applications using Permanent Magnet Generator (PMG). The three-phase output voltages of the PMG vary from 260 Vrms (220 Hz) to 380 Vrms (360 ...
Common architecture for discrete wavelet transform analysis and synthesis with sequential and constant processing elements
(2004-10-08)
This paper adresses the problem on processing biological data such as cardiac beats, audio and ultrasonic range, calculating wavelet coefficients in real time, with processor clock running at frequency of present ASIC's ...
Mathematical expression of the bit error ratio in terms of the SNR and laser linewidths in digital coherent optical communication systems
(2021-01-01)
The development of high speed digital signal processors has enabled the migration from previous direct detection systems to digital coherent optical communication systems. The adoption of this technology in optical ...
A novel HPF voltage source rectifier for variable speed refrigeration systems
(IEEE, 2006-01-01)
A novel single-phase voltage source rectifier capable to achieve High-Power-Factor (HPF) for variable speed refrigeration system application, is proposed in this paper. The proposed system is composed by a single-phase ...