Title :
A noise-adaptive digital null detector
Author :
Tarach, D. ; Trenkler, G.
Author_Institution :
Univ. der Bundeswehr Hamburg, Germany
Abstract :
This paper describes a digital null detector which is able to detect sinusoidal signals in the presence of correlated noise. It is therefore well suited for applications with digital signal generators. Measurement uncertainties on a prototype were seen to be up to six times smaller than on comparable lock-in algorithm-based null detectors.
Keywords :
adaptive estimation; adaptive systems; bridge circuits; circuit noise; detector circuits; digital instrumentation; digital-analogue conversion; waveform generators; correlated nois; digital signal generators; measurement uncertainties; noise-adaptive digital null detector; nonlinear algorithm; prototype; sinusoidal signals; Bridges; Data mining; Impedance; Phase detection; Phase frequency detector; Phase measurement; Signal detection; Signal generators; Signal synthesis; Table lookup;
Conference_Titel :
Precision Electromagnetic Measurements Digest, 1996 Conference on
Conference_Location :
Braunschweig, Germany
Print_ISBN :
0-7803-3376-4
DOI :
10.1109/CPEM.1996.546541
