Results 31 to 40 of about 129,867 (356)

WIDEBAND DIGITAL RECEIVER/PULSE ANALYZER

Radio Physics and Radio Astronomy, 2015
The experience of development of a digital receiver/pulse analyzer is described. The measuring set has a modular structure and consists of three functionally independent systems: Radio Frequency Tuner, Digital Pulse Analyzer, and Data Record and Storage ...
V. V. Vynogradov, V. A. Volkov, R. V. Kozhyn, S. V. Sosnytskiy, D. M. Vavriv, O. Y. Vasilyev, E. V. Bulakh, P. V. Usik, A. I. Kuzin   +8 more
doaj   +1 more source

FFT-Based Simultaneous Calculations of Very Long Signal Multi-Resolution Spectra for Ultra-Wideband Digital Radio Frequency Receiver and Other Digital Sensor Applications

Sensors
The discrete Fourier transform (DFT) is the most commonly used signal processing method in modern digital sensor design for signal study and analysis.
Chen Wu, Michael Low
doaj   +1 more source

A tri-band terrestrial beacon digital receiver system for TEC measurements

Frontiers in Astronomy and Space Sciences, 2023
The ionosphere is an important component of near-Earth space that has a significant impact on communication and navigation. Furthermore, the total electron content (TEC) of the ionosphere is a widely used parameter in near-Earth plasma environment ...
Chu-Yuan Zhang, Chu-Yuan Zhang, Rong-Bing Zhao, Dong Zhang, Dong Zhang, Dong-Mei Yu, Ya-Jun Wu, Wei-Hua Shang-Guan, Wei-Hua Shang-Guan, Zhen Yan   +9 more
doaj   +1 more source

Assessing the effect of DS-CDMA chip rate on RAKE branch statistics using a ray-tracing propagation model [PDF]

, 1994
An important improvement in the performance of CDMA and other wideband digital communication systems can be achieved using a RAKE receiver architecture and diversity combining of its branches. The paper presents an analysis of RAKE branch statistics as a
Anderson, HR, McGeehan, JP
core   +1 more source

ANALOG-TO-DIGITAL INTERFACE FOR HETERODYNE RECEIVERS

Journal of Circuits, Systems and Computers, 2002
The analysis of the Intermediate Frequency (IF) section of a heterodyne receiver employing IF sampling, based on its Carrier-to-Interference ratio (C/I), yields various options on filtering, amplification, conversion to digital and interfacing to base-band.
Aristodemos Pnevmatikakis, Lampros Dermentzoglou, Aggeliki Arapoyanni   +2 more
openaire   +2 more sources

Design and Implementation of a Digital Front-End With Digital Compensation for Low-Complexity 4G Radio Transceivers

IEEE Access, 2021
A digital front-end with digital compensation is designed and implemented for low-complexity 4G radio transceivers targeted for wearable devices such as smart watches.
Chester Sungchung Park, Yungyu Gim, Jeongpil Park, Sungkyung Park   +3 more
doaj   +1 more source

Incorporating Digital Repeaters into the Soft Handover Standard in Digital Video Broadcasting Handheld

, 2006
Digital Video Broadcasting for Handhelds (DVB-H) is a standard for broadcasting IP data services to portable devices. Handover in unidirectional broadcast networks is a novel issue introduced by this technology.
Itagaki, T, Song, Y H, Cosmas, J, Yang, X D, Owens, T J   +4 more
core   +1 more source

The filed of biography in the Ismaili Literature.

مجلة العلوم و آفاق المعارف, 2023
Talking about digital text or digital literature is a controversial conversation because of the intellectual differences and conflicts that the topic carries, and a great controversy taking place in the critical and literary arena.
maatougui chahinez, kaddour. tifouri
doaj   +1 more source

Organ‐specific redox imbalances in spinal muscular atrophy mice are partially rescued by SMN antisense oligonucleotides

FEBS Letters, EarlyView.
We identified a systemic, progressive loss of protein S‐glutathionylation—detected by nonreducing western blotting—alongside dysregulation of glutathione‐cycle enzymes in both neuronal and peripheral tissues of Taiwanese SMA mice. These alterations were partially rescued by SMN antisense oligonucleotide therapy, revealing persistent redox imbalance as ...
Sofia Vrettou, Brunhilde Wirth
wiley   +1 more source

DSP-Enabled Radio Astronomy: Towards IIIZW35 Reconquest

EURASIP Journal on Advances in Signal Processing, 2005
In radio astronomy, the radio spectrum is used to detect weak emission from celestial sources. By spectral averaging, observation noise is reduced and weak sources can be detected.
Viou Cédric, Coffre Andrée, Denis Laurent, Zarka Philippe, Lecacheux Alain, Weber Rodolphe   +5 more
doaj   +1 more source