Results 11 to 20 of about 882,304 (195)

OTA testing of near‐field and far‐field communication links

open access: yesElectronics Letters, 2023
In this work, near‐field and far‐field link measurement in metal enclosure environment is performed. The performance of near‐field and far‐field links are assessed using key performance indicators such as error vector magnitude, bit error rate, and ...
B. Korunur Engiz   +3 more
doaj   +1 more source

A Channel-Aware Adaptive Modem for Underwater Acoustic Communications

open access: yesIEEE Access, 2021
Acoustic underwater channels are very challenging, because of limited bandwidth, long propagation delays, extended multipath, severe attenuation, rapid time variation and large Doppler shifts.
Stefano Mangione   +4 more
doaj   +1 more source

Prijemnik sa direktnom konverzijom radio-frekvencijskog signala / Direct conversion of radio-frequency signal receiver [PDF]

open access: yesVojnotehnički Glasnik, 2002
Pojačani zahtevi za smanjenje troškova hardvera, veličine i potrošnje uređaja u ćelijskim mobilnim komunikacijama naveli su konstruktore na intenzivniju primenu prijemnika sa direktnom konverzijom.
Dušan Korolija
doaj   +1 more source

Automatic Configurable Hardware Code Generation for Software-Defined Radios

open access: yesComputers, 2018
The development of software-defined radio (SDR) systems using field-programmable gate arrays (FPGAs) compels designers to reuse pre-existing Intellectual Property (IP) cores in order to meet time-to-market and design efficiency requirements. However, the
Lekhobola Tsoeunyane   +2 more
doaj   +1 more source

Superpixel Segmentation by Forgetting Geodesic Distance

open access: yesIEEE Access, 2020
Superpixel segmentation could be of benefit to computer vision tasks due to its perceptually meaningful results with similar appearance and location. To obtain the accurate superpixel segmentation, existing methods introduce geodesic distance to fit the ...
Bing Luo, Junkai Xiong, Li Xu
doaj   +1 more source

Crosstalk in modern software defined radio for the implementation of frequency modulated continuous wave radar

open access: yesIET Radar, Sonar & Navigation, 2021
This study investigates crosstalk and leakage in the Software Defined Radio implementation of Frequency Modulated Continuous Wave (FMCW) radar systems. Empirical measurements of leakage power were conducted during the implementation of FMCW radar using ...
Faran Awais Butt   +4 more
doaj   +1 more source

Analysis of Military Application of Software Radio Communication Technology [PDF]

open access: yesMATEC Web of Conferences, 2019
The emergence of software radio technology is the third technological revolution in the field of communication. In view of the immature status of the application of software radio communication technology in our country's military affairs, on the premise
Gao Jing
doaj   +1 more source

Software-Defined Ultrasonic Communication System With OFDM for Secure Video Monitoring

open access: yesIEEE Access, 2022
Ultrasonic communication is a desirable method for information transfer through solid channels such as metallic bars, plates, or pipes by overcoming the physical barriers that prevent conventional wired or radiofrequency transmission.
Xin Huang   +5 more
doaj   +1 more source

A Software-Defined Channel Sounder for Industrial Environments with Fast Time Variance [PDF]

open access: yes, 2018
Novel industrial wireless applications require wideband, real-time channel characterization due to complex multipath propagation. Rapid machine motion leads to fast time variance of the channel's reflective behavior, which must be captured for radio ...
Block, Dimitri   +2 more
core   +3 more sources

ETSI Reconfigurable Radio Systems — Software Defined Radio and Cognitive Radio standards [PDF]

open access: yes2009 IEEE 20th International Symposium on Personal, Indoor and Mobile Radio Communications, 2009
This paper details the current work status of the ETSI Reconfigurable Radio Systems (RRS) Technical Committee (TC) and gives an outlook on the future evolution. In particular, Software Defined Radio (SDR) related study results are presented with a focus on SDR architectures for Mobile Devices (MD), such as mobile phones, etc., as well as for ...
Ahtiainen, Ari   +11 more
openaire   +3 more sources

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