Title :
Effect of anomalously low voltage noise in measurement systems with cross-correlation signal processing
Author :
Ivanov, E.N. ; Walls, F.L.
Author_Institution :
Dept. of Phys., Western Australia Univ., Nedlands, WA, Australia
Abstract :
When two uncorrelated thermal noise sources with matched intensities are coupled to the inputs of two-channel noise measurement system, the cross-spectral density of output voltage fluctuations becomes anomalously low, provided the measurement time is long enough. Results of experimental observations of such effect along with its theoretical explanation are presented.
Keywords :
correlation methods; electric noise measurement; measurement systems; thermal noise; anomalously low voltage noise; cross-correlation signal processing; cross-spectral density; matched intensities; measurement time; output voltage fluctuations; two-channel noise measurement system; uncorrelated thermal noise sources; Circuit noise; Density measurement; Frequency measurement; Low voltage; Noise measurement; Signal processing; Signal to noise ratio; Temperature; Voltage fluctuations; Voltage measurement;
Conference_Titel :
Precision Electromagnetic Measurements Digest, 2000 Conference on
Conference_Location :
Sydney, NSW, Australia
Print_ISBN :
0-7803-5744-2
DOI :
10.1109/CPEM.2000.851068
