Title :
An improved analog AGC for TD-SCDMA receiver
Author :
Liao Ji-chang ; He Song-bai
Author_Institution :
Univ. of Electron. Sci. & Technol. of China, Chengdu
Abstract :
The time division-synchronous CDMA TD-SCDMA uses time division duplex (TDD) for unsymmetrical data rate transmission, making conventional closed-loop automatic gain control (AGC) schemes impractical for TD-SCDMA receiver. An improved analog AGC algorithm used in TD-SCDMA receiver is presented, the general model is given and an equivalent linear system is proposed. Finally, the simulation and test results are given. The validity of the algorithm is verified by simulations and experiments.
Keywords :
automatic gain control; code division multiple access; linear systems; time division multiple access; time division multiplexing; TD-SCDMA receiver; TDD; analog AGC algorithm; automatic gain control; equivalent linear system; time division duplex; time division-synchronous code division multiple access; unsymmetrical data rate transmission; Band pass filters; Mixers; Multiaccess communication; Receivers; Strontium; Surface acoustic waves; Switches;
Conference_Titel :
Communications, Circuits and Systems, 2007. ICCCAS 2007. International Conference on
Conference_Location :
Kokura
Print_ISBN :
978-1-4244-1473-4
DOI :
10.1109/ICCCAS.2007.6250059
