automatic gain control

(redirected from AGC circuit)
Also found in: Medical, Encyclopedia.
Related to AGC circuit: Automatic volume control

automatic gain control

n
(Electronics) control of a radio receiver in which the gain varies inversely with the magnitude of the input, thus maintaining the output at an approximately constant level. Abbreviation: AGC
Collins English Dictionary – Complete and Unabridged, 12th Edition 2014 © HarperCollins Publishers 1991, 1994, 1998, 2000, 2003, 2006, 2007, 2009, 2011, 2014
Mentioned in ?
References in periodicals archive ?
The linearized OTA was employed for speech processing in CIs: an AGC circuit with single-loop and dual-loop gain control algorithms [7], and a BPF bank for sub-band division [19].
This approach raises some concerns, such as the narrow gain control range and limitation of dynamic range of whole AGC circuit. In order to solve these issues, a new control scheme variable gain amplifier is proposed in this work and the architecture of the proposed VGA is provided in Fig.
The same basic AGC circuit may be used, but this time the transmitted power may need to be dynamically adjusted.