%0 Journal Article
%T An Improved Efficient Architecture for Wideband Digital Down Conversion<br>一种改进的宽带数字下变频高效结构
%A Li Bing
%A Ge Lin-dong
%A Zheng Jin
%A <br>李冰
%A 葛临东
%A 郑瑾
%J 电子与信息学报
%D 2007
%I 
%X First, this paper analyzes the very reason of efficiency in the existing efficient architecture for wideband Digital Down Conversion (DDC) and points out some problems, and then deduces a novel method: decimation prior to filtering and synchro-tuning by the use of Goertzel filter. By comparing it with the typical architecture and the existing efficient architecture for wideband DDC, performance of new method is discussed to be flexible, efficient and finite cost. Computer simulation illustrates its feasibility.
%K Digital Down Conversion (DDC)
%K Polyphase filter
%K Channelization
%K Goertzel filter<br>数字下变频
%K 多相滤波
%K 信道化
%K Goertzel滤波器
%U http://www.alljournals.cn/get_abstract_url.aspx?pcid=5B3AB970F71A803DEACDC0559115BFCF0A068CD97DD29835&cid=1319827C0C74AAE8D654BEA21B7F54D3&jid=EFC0377B03BD8D0EF4BBB548AC5F739A&aid=27F9723D8359DD71&yid=A732AF04DDA03BB3&vid=771469D9D58C34FF&iid=5D311CA918CA9A03&sid=E7AA5D9F9796332E&eid=B2F4AE6815C8FC11&journal_id=1009-5896&journal_name=电子与信息学报&referenced_num=0&reference_num=13