Results 251 to 260 of about 3,665,886 (316)

Radio Frequency Tagging-enabled patient monitoring: integrating mobility tracking with early warning systems for enhanced safety. [PDF]

BioData Min
Abugabah A, Shukla PK, Shukla PK, Dwivedi A.   +3 more
europepmc   +1 more source

Conceptualization and Realization of a Vibrating Intrinsic Reverberation Chamber for Plant Exposure to Radio Frequency Electromagnetic Fields. [PDF]

Bioelectromagnetics
Oppermann L, Weidemeier M, Schäfer CC, Win YN, Matthes MS.   +4 more
europepmc   +1 more source

Radio Frequency Signal Recognition of Unmanned Aerial Vehicle Based on Complex-Valued Convolutional Neural Network. [PDF]

Sensors (Basel)
Xin Y, Mu J, Jing X, Liu W.
europepmc   +1 more source

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Measurements at Radio Frequencies

Transactions of the American Institute of Electrical Engineers, 1940
IT IS interesting to recall that this art is less thana century old1 and that the early experimenters actually worked in the frequency range now called “hyper frequencies.”
Harry R. Meahl, P. C. Michel, M. W. Scheldorf, T. M. Dickinson   +3 more
openaire   +1 more source

Vulnerabilities of radio frequencies

2015 12th International Conference on Fuzzy Systems and Knowledge Discovery (FSKD), 2015
Despite current advancements in today's technologies, radio frequencies are still unprotected and continues to be an achilles heel of technology. A simple telephonic radio frequency (RF) can be intercepted with the use of a baby monitor. Many don't seem to understand the risks involved regarding with radio frequencies.
LeeHur Shing, Jessica Astacio, Alejandro Figueroa 0002, Chen-chi Shing   +3 more
openaire   +1 more source

Radio Frequency Fingerprinting on the Edge

IEEE Transactions on Mobile Computing, 2022
Deep learning methods have been very successful at radio frequency fingerprinting tasks, predicting the identity of transmitting devices with high accuracy. We study radio frequency fingerprinting deployments at resource-constrained edge devices.
Tong Jian, Yifan Gong 0004, Zheng Zhan 0001, Runbin Shi, Nasim Soltani, Zifeng Wang 0002, Jennifer G. Dy, Kaushik R. Chowdhury, Yanzhi Wang 0001, Stratis Ioannidis   +9 more
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Radio Link Frequency Assignment

Constraints, 1999
The problem of radio frequency assignment is to provide communication channels from limited spectral resources whilst keeping to a minimum the interference suffered by those whishing to communicate in a given radio communication network. This problem is a combinatorial (NP-hard) optimization problem.
Cabon, Bertrand, de Givry, Simon, Lobjois, Lionel, Schiex, Thomas, Warners, Joost P.   +4 more
openaire   +2 more sources

Photonic radio frequency phase-shift amplification by radio frequency interferometry

Optics Letters, 2015
We present a new technique for radio frequency (RF) phase-shift amplification based on RF interferometry and demonstrate it in an optical system. A striking feature of this amplifier is that the input phase noise is not amplified together with the input phase signal, so the phase sensitivity improves with higher phase amplification.
Moshe Ben, Ayun, Arye, Schwarzbaum, Seva, Rosenberg, Monika, Pinchas, Shmuel, Sternklar   +4 more
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Conductimetric Analysis at Radio-Frequency

Journal of Scientific Instruments, 1947
After referring to difficulties encountered when using standard conductivity cells, a brief reference is made to that part of the author's previous work on the measurement of electrolytic resistance which is essential to the present paper. Two new radio-frequency current arrangements for titration are described in both of which a length of Pyrex glass ...
openaire   +1 more source