Design Of A Sample-Rate Converter Based On Least-Square Method

摘要：

A sample-rate converter in digital domain is regarded as filtering the origin signal,and the precision of resampling is mainly decided by filter designing. To improve the accuracy of signal resampling,a resampling realization method is proposed in this paper. It converts resampling problem into a timevariable filter designing,so a least-square method can be used to obtain the filter coefficients and obtain better accuracy. To avoid the ill-conditioning problem which may arise in solving the least-square equations,QR decomposition based on householder transformation is used. Finally,the experimental results proved that the proposed method can realize high accuracy signal resampling.

关键词： sample-rate conversion time-variable filter least-square method

作者: Yu Huijun

作者单位: Mechatronics institute,University of electronics science and technology of China,Chendu,Sichuan Province

会议类型: 国际会议

会议名称: 2011 International Conference on Opto-Electronics Engineering and Information Science(2011光电电子工程与信息科学国际会议 ICOEIS 2011)

会议地点: 西安

会议语种:英文

页码: 2521-2525

在线出版日期: 2011-12-23（万方平台首次上网日期，不代表论文的发表时间）