Results 21 to 30 of about 1,500,319 (282)

Information and noise in quantum measurement [PDF]

open access: yes, 1999
Even though measurement results obtained in the real world are generally both noisy and continuous, quantum measurement theory tends to emphasize the ideal limit of perfect precision and quantized measurement results.
A. Einstein   +24 more
core   +6 more sources

Noise Measurements and Noise Measurement Systems [PDF]

open access: yesThe Journal of the Acoustical Society of America, 1969
Only a brief description of the measurement of sound level and sound-pressure level is given in S1.2-1962, American Standard Method for the Physical Measurement of Sound. The initial task of S1-W-51 is to prepare a partial revision of S1.2-1962, which includes recommended procedures for measuring weighted and band-limited sound-pressure levels under ...
openaire   +1 more source

Low-Frequency Noise Modeling Using EMD with Experimental Results Validation [PDF]

open access: yesهوش محاسباتی در مهندسی برق, 2023
Low-frequency noise modeling and estimation is a critical issue in the design of analog and digital circuits, especially for short-channel CMOS technologies.
Zeinab Shamaee   +2 more
doaj   +1 more source

Reduction of Classical Measurement Noise via Quantum-Dense Metrology [PDF]

open access: yes, 2016
Quantum-dense metrology (QDM) constitutes a special case of quantum metrology in which two orthogonal phase space projections of a signal are simultaneously sensed beyond the shot noise limit.
Ast, Melanie   +2 more
core   +4 more sources

Određivanje buke radi sertifikacije mlaznih aviona / Procedures in the noise certification of jet aircraft

open access: yesVojnotehnički Glasnik, 2005
U radu su prikazane osnovne teorijske postavke i matematički modeli koji su značajni za obradu akustičkih i neakustičkih podataka u procesu određivanja buke mlaznih aviona prema međunarodnom standardu ICAO, Annex 16, za potrebe sertiflkacije.
Gordana Jurin, Milorad Pavlović
doaj   +1 more source

Shot-noise-limited control-loop noise in an interferometer with multiple degrees of freedom [PDF]

open access: yes, 2010
Precise measurements, such as those made with interferometric gravitational-wave detectors, require the measurement device to be properly controlled so that the sensitivity can be as high as possible.
Miyakawa, Osamu, Somiya, Kentaro
core   +1 more source

Observation of Strong Radiation Pressure Forces from Squeezed Light on a Mechanical Oscillator

open access: yes, 2016
Quantum enhanced sensing is a powerful technique in which nonclassical states are used to improve the sensitivity of a measurement. For enhanced mechanical displacement sensing, squeezed states of light have been shown to reduce the photon counting noise
Aumentado, José   +4 more
core   +1 more source

Back-action cancellation in interferometers by quantum locking [PDF]

open access: yes, 2003
We show that back-action noise in interferometric measurements such as gravitational-waves detectors can be completely suppressed by a local control of mirrors motion.
A Heidmann   +7 more
core   +3 more sources

Accurate Extraction of Noise Source Impedance of an SMPS Under Operating Conditions [PDF]

open access: yes, 2010
An accurate measurement method to extract the common mode (CM) and the differential mode (DM) noise source impedances of a switched mode power supply (SMPS) under its operating condition is developed and validated.
Bo, Hu   +3 more
core   +1 more source

Structural and functional pathology of the university building

open access: yesRevista Ingenio, 2013
This article is a reflection of the result of the evaluation of the structural and functional pathology of the building of the Francisco de Paula Santander Ocaña University (UFPSO), finding pathological manifestations in concrete and masonry with ...
Nelson Afanador García   +2 more
doaj   +1 more source

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