%0 Journal Article
%T A Distribution-Function-Based AGC Method in OFDM Systems<br>OFDM系统中基于信号分布函数的AGC算法
%A Zhang Xiao-xin
%A Zou Li
%A Zhao Yu-ping
%A <br>张小欣①
%A 邹 黎②
%A 赵玉萍①
%J 电子与信息学报
%D 2008
%I 
%X In Orthogonal Frequency Division Multiplexing (OFDM) systems, there are large estimate errors of the received power in a traditional Automatic Gain Control (AGC). This paper proposes a distribution-function-based AGC method. This method estimates the received power by using the distribution function of the output signal from the Analog to Digital Converter (ADC), and overcomes the clipping effect introduced by the ADC. Simulation results demonstrate that, in OFDM systems, only after one time estimate, the proposed AGC method achieves less than 0.23dB estimate error, whereas the traditional AGC method provides less than 9dB estimate error. Therefore, the proposed AGC method estimates the received power more accurately, and increases greatly the system performance.
%K OFDM
%K AGC
%K Distribution function<br>正交频分复用
%K 自动增益控制
%K 分布函数
%U http://www.alljournals.cn/get_abstract_url.aspx?pcid=5B3AB970F71A803DEACDC0559115BFCF0A068CD97DD29835&cid=1319827C0C74AAE8D654BEA21B7F54D3&jid=EFC0377B03BD8D0EF4BBB548AC5F739A&aid=740971FB4CAABD5667481DA79070F1AC&yid=67289AFF6305E306&vid=340AC2BF8E7AB4FD&iid=F3090AE9B60B7ED1&sid=449F46B0E3CF6ED3&eid=A2AE002259CD0552&journal_id=1009-5896&journal_name=电子与信息学报&referenced_num=0&reference_num=6