Results 31 to 40 of about 102,177 (295)

DEVELOPMENT OF THE COMPLEX LABORATORY WORKS FOR RESEARCH DIGITAL TELEVISION AND MOBILE COMMUNICATION SYSTEMS BASED ON SDR TECHNOLOGY

open access: yesАвтоматизация технологических и бизнес-процессов, 2023
.  Recen   t decades have marked by revolutionary changes, including the emergence of software-defined radio equipment (SDR). However, there is virtually no training in this area, which does not allow for the full realization of the benefits of new, more
Illia Bondarenko   +2 more
doaj   +1 more source

Software-defined radio-based HF doppler receiving system

open access: yesEarth, Planets and Space, 2021
High-frequency Doppler (HFD) sounding is one of the major remote sensing techniques used for monitoring the ionosphere. Conventional systems for HFDs mainly utilize analog circuits.
Hiroyuki Nakata   +8 more
doaj   +1 more source

Software Defined Radio—Guest Editorial [PDF]

open access: yesJournal of Signal Processing Systems, 2012
Cognitive Radio (CR) is under intensive investigation since Joseph Mitola III published his doctoral dissertation in 2000. It is common understanding that Software Defined Radio (SDR) is the enabling technology for CR. A CR is an SDR that additionally senses its environment, tracks changes, and reacts upon its findings.
Friedrich K. Jondral   +2 more
openaire   +1 more source

An architecture for software defined cognitive radio [PDF]

open access: yesProceedings of the 6th ACM/IEEE Symposium on Architectures for Networking and Communications Systems, 2010
As we move forward towards the next generation of wireless protocols, the push for a better radio physical layer is ever increasing. Conventional radio architectures are limited to narrow operating regions and fails to adapt with changing technology.
Aveek Dutta   +3 more
openaire   +1 more source

Dynamic reconfiguration technologies based on FPGA in software defined radio system

open access: yes, 2011
Partial Reconfiguration (PR) is a method for Field Programmable Gate Array (FPGA) designs which allows multiple applications to time-share a portion of an FPGA while the rest of the device continues to operate unaffected.
Crockett, Louise Helen   +2 more
core   +1 more source

Experimental Validation of an SDR-Based Direction of Arrival Estimation Testbed

open access: yesInformation
Advanced mobile communication standards of the fifth and subsequent generations widely use beamforming technology. While many publications on this topic rely on simulation tools, some work has been dedicated to experimental testing using software-defined
Nikita Sheremet, Grigoriy Fokin
doaj   +1 more source

Hyperosmotic stress induces PARP1‐mediated HPF1‐dependent mono(ADP‐ribosyl)ation

open access: yesFEBS Letters, EarlyView.
Sorbitol‐induced hyperosmotic stress rapidly induces reversible mono(ADP‐ribosyl)ation (MARylation) on PARP1 without the signs of genotoxic signaling. We show that PARP1 autoMARylation is HPF1 dependent and forms hydroxylamine‐resistant O‐glycosidic linkages.
Anna Georgina Kopasz   +11 more
wiley   +1 more source

Septin 9 PB domains coordinate centrosome positioning and microtubule acetylation to control epithelial polarity

open access: yesFEBS Letters, EarlyView.
Septin 9 polybasic domains couple phosphoinositide‐rich membrane binding to centrosome positioning, Golgi organization, and microtubule acetylation to control epithelial polarity. Their loss disrupts this axis, causing centrosome mispositioning, Golgi fragmentation, reduced microtubule acetylation, and polarity inversion via upregulation of the ...
Ting ting Cai   +4 more
wiley   +1 more source

Software-Defined Radio—Basics and Evolution to Cognitive Radio

open access: yesEURASIP Journal on Wireless Communications and Networking, 2005
We provide a brief overview over the development of software-defined or reconfigurable radio systems. The need for software-defined radios is underlined and the most important notions used for such reconfigurable transceivers are thoroughly defined.
Jondral Friedrich K.
doaj   +2 more sources

A software defined radio testbed implementation

open access: yes, 2003
We report on the implementation of a software defined radio (SDR) based on state-of-the-art digital signal processors (DSPs), which are linked serially to PCs.
Reeve, J.S.   +10 more
core   +1 more source

Home - About - Disclaimer - Privacy