Results 21 to 30 of about 37,523,811 (205)

Design of a power-aware digital image rejection receiver [PDF]

open access: yes, 2009
This paper deals with and details the design of a power-aware adaptive digital image rejection receiver based on blind-source-separation that alleviates the RF analog front-end impairments.
Ediz Cetin   +5 more
core   +1 more source

Design of analog front-end for multi-channel dual-band high frequency radar receiver

open access: yesDianzi Jishu Yingyong, 2018
Aiming at the requirement of the hybrid sky-surface network for radar receiver, the design of analog front-end for dual-band multi-channel digital radar receiver based on software radio idea is proposed and implemented.
Li Shijie   +3 more
doaj   +1 more source

Phase Coherence Technology of Digital MR Console Based on Dual Reference Sources

open access: yesChinese Journal of Magnetic Resonance, 2022
In this article, an effective method to keep the phase coherence between the transmitter and the receiver in digital magnetic resonance (MR) console is proposed. Relying on programmable digital logic, we design two digital reference sources with the same
Wen-shan LIAO   +4 more
doaj   +1 more source

USING THE BROADBAND DIGITAL RECEIVERS IN INTERFEROMETER OBSERVATIONS WITH THE URAN NETWORK

open access: yesRadio Physics and Radio Astronomy, 2017
Purpose: The goal of the work is improving the efficiency of interferometric studies of cosmic radio sources at decameter waves. Design/methodology/approach: The URAN interferometer network observations are made usually at frequencies of 20 and 25 MHz
V. A. Shepelev   +4 more
doaj   +1 more source

Receiver alignment dependence of a GA controlled optical wireless transmitter [PDF]

open access: yes, 2009
A genetic algorithm controlled multispot transmitter is demonstrated to be capable of optimizing the received power distribution for single element receivers in fully diffuse mobile indoor optical wireless systems.
Leeson, Mark S.   +2 more
core   +1 more source

Digital frontend design for three-bands aliasing RF signals

open access: yesDianzi Jishu Yingyong, 2019
In order to solve the problem of three-band bandpass signal aliasing, a delay-adjustable third-order bandpass sampling structure is proposed. By designing a digital anti-aliasing filter, the alias-free reception of three-band bandpass signals can be ...
Wang Hongmei   +4 more
doaj   +1 more source

Chromatic Dispersion Equalization FIR Digital Filter for Coherent Receiver

open access: yesPhotonics, 2021
Chromatic dispersion equalization (CDE) in coherent optical communication systems is extremely critical for subsequent digital signal processing (such as frequency offset estimation and carrier phase recovery).
Zicheng Wu   +4 more
doaj   +1 more source

True-Time-Delay Receiver IC With Reconfigurable Analog and Digital Beamforming

open access: yesIEEE Access, 2022
Spatial diversity advantages such as improved signal-to-noise ratio and in-band blocker filtering can be achieved through beamforming in the digital and/or analog domain.
Kalle Spoof   +5 more
doaj   +1 more source

Thermal Modelling and Simulation of Parabolic Trough Receiver Tubes [PDF]

open access: yes, 2010
Receiver tubes (or heat collecting elements — HCE) are a key component of parabolic trough solar thermal power plants. They are mounted in the focal line of the collectors, absorb the concentrated solar irradiance and transfer the absorbed energy to the ...
Jan Fabian Feldhoff   +5 more
core   +1 more source

MULTIFUNCTIONAL DIGITAL RECEIVER-SPECTROMETER

open access: yesRadio Physics and Radio Astronomy, 2014
A new two-channel digital receiver-spectrometer whose parameters and functional capabilities are optimized to provide its effective use in decameter telescopes, as well as in other systems where high precision and synchronization of measurements are ...
O. Y. Vasilyev   +5 more
doaj   +1 more source

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