"Nuclear quadrupole resonance, Spectroscopy, Detector, noise, averaging, matched recieving, signal noise ratio."@en . "Guangzhou" . "Kub\u00E1sek, Radek" . . "2"^^ . . "[BFE2F784E178]" . . . "2"^^ . . . . . . . "26220" . "S" . "Detector for Nuclear Quadrupole Resonance Spectroscopy"@en . "2014-08-25+02:00"^^ . . . "RIV/00216305:26220/14:PU110332" . "4"^^ . "Detector for Nuclear Quadrupole Resonance Spectroscopy" . "Detector for Nuclear Quadrupole Resonance Spectroscopy"@en . . . "Nuclear quadrupole resonant spectroscopy is method similar to nuclear magnetic resonant spectroscopy also called zero field NMR [1, 2]. The response signal magnitude is very low and it is immersed in to the noise. There can be used some methods to harvest signal from noise it can be matched receiver [3] or averaging. This authors describe detector for Nuclear quadrupole resonant spectroscopy based on statistic methods and probability of distribution, that allow to measure repetitive signals below noise level. The paper presents the mathematical model and practical solution of the detector, and problems such as the dynamic range and signal distortion based on the signal-to-noise ratio are also analyzed in the given context. If the time of signal occurrence is known, the repetitive signal below the noise level can be harvested out of noise by averaging because of the wanted signal is correlated therefor highlighted by averaging contrast to the noise which is not correlated so it is supressed by averagin"@en . . "Neuveden" . "Detector for Nuclear Quadrupole Resonance Spectroscopy" . . "PIERS 2014 Guangzhou" . "RIV/00216305:26220/14:PU110332!RIV15-MSM-26220___" . . "Nuclear quadrupole resonant spectroscopy is method similar to nuclear magnetic resonant spectroscopy also called zero field NMR [1, 2]. The response signal magnitude is very low and it is immersed in to the noise. There can be used some methods to harvest signal from noise it can be matched receiver [3] or averaging. This authors describe detector for Nuclear quadrupole resonant spectroscopy based on statistic methods and probability of distribution, that allow to measure repetitive signals below noise level. The paper presents the mathematical model and practical solution of the detector, and problems such as the dynamic range and signal distortion based on the signal-to-noise ratio are also analyzed in the given context. If the time of signal occurrence is known, the repetitive signal below the noise level can be harvested out of noise by averaging because of the wanted signal is correlated therefor highlighted by averaging contrast to the noise which is not correlated so it is supressed by averagin" . . . "Neuveden" . "Chytil, Ji\u0159\u00ED" . . "10643" . "978-1-934142-28-8" .