Results 31 to 40 of about 606,927 (312)

Implementation of Pulse Radar Waveform Based on Software Radio Platform

open access: yesMATEC Web of Conferences, 2015
Based on the frequency and phase modulated signal, the authors design some commonly-used pulse radar baseband waveform, such as linear frequency modulated waveform, nonlinear frequency modulated waveform, Costas waveform, Barker coding waveform and multi-
Wang Dong, Dong Jian, Xiao Shunping
doaj   +1 more source

A Study of Motor Bearing Fault Diagnosis using Modulation Signal Bispectrum Analysis of Motor Current Signals [PDF]

open access: yes, 2013
Failure of induction motors are a large concern due to its influence over industrial production. Motor current signature analysis (MCSA) is common practice in industry to find motor faults. This paper presents a new approach to detection and diagnosis of
Chen, Zhi   +5 more
core   +1 more source

Model-based predictive adaptive delta modulation [PDF]

open access: yes, 2007
This paper presents a new technique in digital communications that is called model-based-predictive adaptive-delta-modulation (MBP-ADM). MBP-ADM uses system identification tools to identify a model of the signal which is used for prediction.
Sandor M Veres   +3 more
core   +1 more source

Modulators of calcium signalling at fertilization [PDF]

open access: yesOpen Biology, 2020
Calcium (Ca 2+ ) signals initiate egg activation across the animal kingdom and in at least some plants. These signals are crucial for the success of development and, in the case of mammals, health of the offspring.
Paula Stein   +3 more
openaire   +3 more sources

Maximum Euclidean distance network coded modulation for asymmetric decode-and-forward two-way relaying [PDF]

open access: yes, 2013
Network coding (NC) compresses two traffic flows with the aid of low-complexity algebraic operations, hence holds the potential of significantly improving both the efficiency of wireless two-way relaying, where each receiver is collocated with a ...
Chen, Wei, Hanzo, Lajos, Cao, Zhigang
core   +1 more source

Adaptive Delta Modulation Simulation and Analysis Using MatLab

open access: yesParadigma, 2023
The system for converting analog signals to digital signals has become a necessity, considering that the tools currently used are digital computers. One of the analog-to-digital conversion systems is the delta modulation system. In delta modulation, only
Djadjat Sudaradjat, Andi Rosano
doaj   +1 more source

Modulation of calcium signalling by mitochondria

open access: yesBiochimica et Biophysica Acta (BBA) - Bioenergetics, 2009
In this review we will attempt to summarise the complex and sometimes contradictory effects that mitochondria have on different forms of calcium signalling. Mitochondria can influence Ca(2+) signalling indirectly by changing the concentration of ATP, NAD(P)H, pyruvate and reactive oxygen species - which in turn modulate components of the Ca(2 ...
Walsh, Ciara   +5 more
openaire   +2 more sources

Nonlinearity and Noise Effects in Multi-level Signal Millimeter-Wave over Fiber Transmission using Single- and Dual-Wavelength Modulation [PDF]

open access: yes, 2010
We transmit multilevel quadrature amplitude modulation (QAM) data-IEEE 802.16 schemes-at 20 MSps and an orthogonal frequency-division multiplexing (OFDM) 802.11 g signal (54 Mbps) with a 25 GHz millimeter-wave over fiber system, which employs a dual ...
Jeanne James   +9 more
core   +1 more source

Formation of a signal with Hartley amplitude-phase modulation as the sum of two signals with Hartley amplitude modulation

open access: yesTrudy Odesskogo Politehničeskogo Universiteta
The paper presents the results of the research, which outcome in the development of a theoretical justification for a new type of modulation – Hartley amplitude-phase modulation.
Олександр Борисович Коханов
doaj   +5 more sources

EQUIPMENT FOR FOOD PROCESSING LOW-FREQUENCY ELECTROMAGNETIC FIELD WITH MODULATED CHARACTERISTICS

open access: yesВестник Северо-Кавказского федерального университета, 2022
The article is devoted to the innovative scientific and practical direction in the food industry - the impact on raw materials and products of its processing by a modulated electromagnetic field of the low-frequency range.
Valentin Shipulin   +3 more
doaj  

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