Results 41 to 50 of about 7,894 (165)

An Efficient Key Generation for the Internet of Things Based Synchronized Quantization

open access: yesSensors, 2019
One solution to ensure secrecy in the Internet of Things (IoT) is cryptography. However, classical cryptographic systems require high computational complexity that is not appropriate for IoT devices with restricted computing resources, energy, and memory.
Mike Yuliana, Wirawan, Suwadi
doaj   +1 more source

SQNR Estimation of Fixed-Point DSP Algorithms

open access: yesEURASIP Journal on Advances in Signal Processing, 2010
A fast and accurate quantization noise estimator aiming at fixed-point implementations of Digital Signal Processing (DSP) algorithms is presented. The estimator enables significant reduction in the computation time required to perform complex word ...
Carreras Carlos   +3 more
doaj   +2 more sources

Optimal Code book Generating LBG Algorithm [PDF]

open access: yesمجلة جامعة الانبار للعلوم الصرفة, 2012
In this research, have been applied(LBG) algorithm to create optimal code book tat used in vector quantization, which use in widely for image and signal processing .It use in image compressing, voice compression and data encryption when it sent them, In ...
Ibrahim Ahmed saleh, Khalil Ibrahim Al
doaj   +1 more source

Modified BTC Algorithm for Audio Signal Coding

open access: yesAdvances in Electrical and Computer Engineering, 2016
This paper describes modification of a well-known image coding algorithm, named Block Truncation Coding (BTC) and its application in audio signal coding. BTC algorithm was originally designed for black and white image coding.
TOMIC, S., PERIC, Z., NIKOLIC, J.
doaj   +1 more source

Enhanced Multi-Level Phase Quantizer for the Optical Processing of M-PSK Signals

open access: yesJournal of Lightwave Technology, 2016
This paper presents a novel multi-level phase quantizer with the potential of almost ideal step like transfer function. Its operation relies on the proper combination of phase sensitive amplification in highly nonlinear fibers and amplitude limitation offered by injection locked lasers.
Bogris, A., Pikasis, E.
openaire   +2 more sources

Voice Identification Using MFCC and Vector Quantization

open access: yesمجلة بغداد للعلوم, 2020
The speaker identification is one of the fundamental problems in speech processing and voice modeling. The speaker identification applications include authentication in critical security systems and the accuracy of the selection.
Bassel Alkhatib   +1 more
doaj   +1 more source

Quantized Approximate Signal Processing (Qasp): Towards Homomorphic Encryption for Audio

open access: yes
Audio and speech data are increasingly used in machine learning applications such as speech recognition, speaker identification, and mental health monitoring. However, the passive collection of this data by audio listening devices raises significant privacy concerns.
Nguyen, Tu Duyen   +3 more
openaire   +2 more sources

Moving Target Detection Using Distributed MIMO Radar Based on Low-bit Quantization under the Background of Generalized Gaussian Noise

open access: yesLeida xuebao
Signal-level cooperative detection based on multichannel observations is a pivotal technique in distributed Multiple-Input Multiple-Output (MIMO) radar for probing targets via the joint processing of multiple echo channels.
Qunfeng DU   +4 more
doaj   +1 more source

Precise frequency synchronization detection method based on the group quantization stepping law.

open access: yesPLoS ONE, 2019
A precise frequency synchronization detection method is proposed based on the group quantization steeping law. Based on the different-frequency group quantization phase processing, high-precision frequency synchronization can be achieved by measuring ...
Baoqiang Du, Ran Deng, Xiyan Sun
doaj   +1 more source

Gaussian Source Coding using a Simple Switched Quantization Algorithm and Variable Length Codewords

open access: yesAdvances in Electrical and Computer Engineering, 2020
This paper introduces an algorithm based on switched scalar quantization utilizing a novel Îź-law quantization model (optimized in terms of minimal distortion) and variable length codewords, for high-quality encoding of the signals modeled by Gaussian ...
PERIC, Z.   +5 more
doaj   +1 more source

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