Title :
Real-time compensation of static distortion by measurement of differential noise gain
Author :
Gunn, Lachlan J. ; Allison, Andrew ; Abbott, Derek
Author_Institution :
Sch. of Electr. & Electron. Eng., Univ. of Adelaide, Adelaide, SA, Australia
Abstract :
It is well-known that in a cascaded system of amplifiers the majority of noise is due to the first stage and the majority of distortion due to the final stage. Consequently, the observed noise at the output is subject to the same nonlinear process as the signal of interest. We use this fact to characterise the distorting process and linearise the system in real-time using statistical measurements of this noise.
Keywords :
Gaussian noise; amplifiers; gain measurement; linearisation techniques; noise measurement; nonlinear distortion; signal processing; statistical analysis; Gaussian noise; amplifier cascaded system; differential noise gain measurement; noise statistical measurement; nonlinear process; output noise; real-time compensation; static distortion; system linearisation; Distortion; Distortion measurement; Function approximation; Histograms; Noise; Noise measurement;
Conference_Titel :
Signal Processing Systems (SiPS), 2014 IEEE Workshop on
Conference_Location :
Belfast
DOI :
10.1109/SiPS.2014.6986079
