نتایج جستجو برای: high frequency signal injection

تعداد نتایج: 2806296  

Journal: :Frontiers in Energy Research 2022

In order to identify the fault nature when phase-to-phase short circuit occurs in distribution lines and realize adaptive reclosing of more accurately, a identification scheme using an inverter-based power electronic technology supply from stored energy capacitor is proposed this paper. The corresponding device designed which composed rectification, storage inverters. Supplied by high voltage s...

Leila Safari Seyed Javad Azhari,

This paper proposes a low voltage (±0.55V supply voltage) low power (44.65µW) high common mode rejection ratio (CMRR) differential amplifier (d.a.) with rail to rail input common mode range (ICMR), constant transconductance (gm) and enhanced frequency performance. Its high performance is obtained using a simple negative averaging method so that it cancels out the common mode input signals at th...

Addiction is a biological, psychological, and social disease. Several factors are involved in etiology, substance abuse, and addiction which interact with each other and lead to the beginning of drug use and then addiction. Heroin is an addictive drug that, by acting on the central nervous system, reduces the density of neurons in the brain and interferes with decision making. This paper examin...

2017
Bashir Imran Imran Bashir Robert Bogdan Staszewski Poras T. Balsara

We present a numerical model of a wideband injection-locked frequency modulator used in a polar transmitter for 3G cellular radio application. At the heart of the system is a self-injection-locked oscillator with a programmable linear tuning range of up to 200 MHz at 4-GHz oscillation frequency. The oscillator is injection locked to a time-delayed version of its resonating voltage, and its freq...

Journal: :Journal of neurophysiology 2010
Kiyoshi Kurata

It has been suggested that the dorsal premotor cortex (PMd) may contribute to conditional motor behavior. Thus when a selection is instructed by arbitrary conditional cues, it is possible that the unilateral PMd affects behavior, regardless of which arm, contra- or ipsilateral, is to be used. We examined this possibility by recording neuronal activity and injecting muscimol into the caudal PMd ...

2008
MICHELE V. BARTUCCELLI JONATHAN H. B. DEANE GUIDO GENTILE

We consider a model for a resonant injection-locked frequency divider, and study analytically the locking onto rational multiples of the driving frequency. We provide explicit formulae for the width of the plateaux appearing in the devil’s staircase structure of the lockings, and in particular show that the largest plateaux correspond to even integer values for the ratio of the frequency of the...

Journal: :Optics letters 2006
Sze-Chun Chan Sheng-Kwang Hwang Jia-Ming Liu

A radio-over-fiber system uses light to carry a microwave subcarrier on optical fibers. The microwave is usually frequency modulated for wireless broadcasting. A conventional optical communication system usually operates at the baseband with amplitude modulation. The interface of the two systems thus needs an upconversion from the baseband to the microwave band with AM-to-FM transformation. An ...

2012
Peter Yun

II Abstract ABSTRACT Miniature passive atomic frequency standard based on CPT resonance has been drawing more and more attentions in the fields of GPS, underwater navigation, unmanned vehicles, etc. This work focused on improving frequency stability of the CPT atomic frequency standard, and we have mainly carried out the study through two approaches: to reduce CPT signal linewidth by combining ...

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