Title :
Transient evolution for different strategies in the amplifier gain control
Author :
Fratu, Octavian ; Halunga, Simona ; Vladan, M. ; Bathaee, Mehdi
Abstract :
In all data receivers that detects a nonbinary signal, the received signal level is calibrated in accordance with a desired target. This target is chosen related to different thresholds of the data detector. The present paper investigates three different strategies of amplifier gain control. These strategies, denoted as "absolute value gain correction", "dB-value gain correction" and "combined gain correction", are mathematically analyzed. Simulations are performed in order to evaluate the performances of the above strategies and to compare them in terms of convergence speed, correction loop stability and hardware simplicity of the practical implementation.
Keywords :
amplifiers; calibration; circuit simulation; circuit stability; convergence; detector circuits; feedback amplifiers; gain control; maximum likelihood detection; receivers; absolute value gain correction; amplifier gain control strategies; circuit stability; combined gain correction; convergence speed; correction loop stability; dB-value gain correction; data detection; data detector thresholds; data transmission receivers; gain control transient evolution; hardware simplicity; maximum likelihood detection; multiple threshold detection; nonbinary signal detection; received signal level calibration; Convergence; Detectors; Differential equations; Error correction; Gain control; Large scale integration; Maximum likelihood detection; Performance evaluation; Signal design; Signal processing;
Conference_Titel :
Electronics, Circuits and Systems, 2002. 9th International Conference on
Print_ISBN :
0-7803-7596-3
DOI :
10.1109/ICECS.2002.1045384
