%0 Journal Article
%T A New AGC Circuitry for Digital Receiver<br>一种新的数字接收机AGC电路
%A Cui Wei
%A Wu Si-liang
%A <br>崔 嵬
%A 吴嗣亮
%J 电子与信息学报
%D 2008
%I 
%X A new Automatic Gain Control (AGC) circuitry is proposed in this paper. The feedback control scheme of subsequent AGC closed-loop in conventional AGC frame is converted to forward control scheme in new circuitry. The power detector and the loop filter are shared by two cascaded AGC loops in new AGC circuitry, so the gain errors in foregoing AGC closed-loop can be corrected by subsequent AGC closed-loop, and total gain errors of new AGC circuitry is determined only by the gain errors in subsequent AGC closed-loop. Simulation and measurement results verify that the new AGC circuitry not only improved the gain control precision, but also decreased the response time, compared with conventional AGC circuitry.
%K Digital receiver
%K Automatic Gain Control (AGC)
%K Cascaded frame
%K Forward control<br>数字接收机
%K 自动增益控制(AGC)
%K 级连结构
%K 前馈控制
%U http://www.alljournals.cn/get_abstract_url.aspx?pcid=5B3AB970F71A803DEACDC0559115BFCF0A068CD97DD29835&cid=1319827C0C74AAE8D654BEA21B7F54D3&jid=EFC0377B03BD8D0EF4BBB548AC5F739A&aid=FAADA5CC5CC7254F281A63279174E834&yid=67289AFF6305E306&vid=340AC2BF8E7AB4FD&iid=5D311CA918CA9A03&sid=E6A891D2134F30C0&eid=DE9F9A03FB2549EC&journal_id=1009-5896&journal_name=电子与信息学报&referenced_num=0&reference_num=13