Results 241 to 250 of about 669,562 (292)

A System for Retrofitting Conventional MRI Systems for Simultaneous Multinuclear MRI/MRS. [PDF]

NMR Biomed
Hou J, Bauer C, Touchet-Valle E, McDougall MP, Wright SM.   +4 more
europepmc   +1 more source

Hyperspectral estimation of leaf chlorophyll under small-sample conditions via spectral augmentation and weighted ensemble learning. [PDF]

Front Plant Sci
Xu J, Song Y, Liu Y, Zhang S, Zhu G, Li W, Wang X, Xing J.   +7 more
europepmc   +1 more source

Quantifying the Impact of Headlamp Light Distribution on Automotive Camera Perception: Establishing a New Primary Design Parameter. [PDF]

Sensors (Basel)
Hoffmann D, Lerch J, Kunst K, Kreß N, Khanh TQ.   +4 more
europepmc   +1 more source

Early Anomaly Pre-Warning of Buried Pipelines via Dynamic Acceleration Signals: An ICEEMDAN-LSTM Framework. [PDF]

Sensors (Basel)
Guo YQ, Zhu ZX, Xia ZH, Zang XL, Li JB.
europepmc   +1 more source

Noise and distortion figure - an extension of noise figure definition for nonlinear devices [PDF]

IEEE MTT-S International Microwave Symposium Digest, 2003, 2003
Deals in the integration of additive and nonlinear distortion noise contributions into a single new figure of merit: Noise and Distortion Figure, NDF. In the same way as traditional noise figure, NF, was conceived to be a measure of SNR degradation, NDF is now proposed as its extension to nonlinear systems, as a measure of SINAD degradation.
Lavrador, P.M., Carvalho, N.B. de, Pedro, J.C.   +2 more
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Impact of Noise Bandwidth on Noise Figure

IEEE Transactions on Instrumentation and Measurement, 2019
Noise figures (NFs) are defined at each frequency of interest over a 1-Hz bandwidth. Their measurements are often performed over bandwidths of a few kilohertzs to a few megahertzs to accelerate the process and to reduce measurement jitter. These wider bandwidths introduce NF errors that can be substantial [>1 dB measured for a 0.4-dB NF low-noise ...
Alexander Sheldon, Leonid Belostotski, Geoffrey G. Messier, Arjuna Madanayake   +3 more
openaire   +1 more source

Noise figure measurements on nonlinear devices

Proceedings of the 17th IEEE Instrumentation and Measurement Technology Conference [Cat. No. 00CH37066], 2001
A study of the effect of a cubic nonlinearity on the Y-factor method for measuring noise figure is performed. By hypothesis, the Y-factor technique does not take nonlinearities into account. It is shown that the presence of the nonlinearity largely influences the measured noise figure value. An alternative, single-tone noise figure measurement setup is
Geens, Alain, Rolain, Yves
openaire   +3 more sources