本文首先介绍和分析了频域变采样率技术的基本原理,接着,介绍了多种变采样率技术的基本思路及实际应用中的适用范围,尤其对分数率的频域变采样率技术进行了深入分析和研究,并通过实例仿真加以验证。然后,用 MATLAB 仿真其他几种频域变采样率技术,主要包括频域上采样、频域下采样和长序列的重叠,并且得到了预期的结果。通过仿真,更深刻的理解了频域采样率变换的基本原理。 10036
关键词 变采样率 频域 分数率 仿真 Title Sampling Rate Conversion in the Frequency Domain
Abstract
In this paper , the theory of sampling rate conversion in frequency domain
is analysed firstly and introduce some kinds of thoughts about sampling
rate and the scope of application . the fractional sampling rate conversion
is studied Especially .Then simulate some techniques of sampling rate
conversion in frequency domain using the MATLAB . The simulation contains
Sampling rate increase ,sampling rate decrease and overlap approach for
long sequences. Through simulation , we understand the basic theory of
sampling rate conversion in frequency domain more clearly .