周期非均匀采样多带信号时最优参数的确定方法  

The Computing Method of the Optimum Parameters on Multi-Band Signals for Periodically Non-Uniform Sampling

作　　者：朱肇轩[1] 王志刚[1] 王厚军[1] 

机构地区：[1]电子科技大学自动化工程学院,四川成都611731

出　　处：《电子学报》2010年第9期2066-2070,共5页Acta Electronica Sinica

基　　金：国家自然科学基金(No.60772145)

摘　　要：以采样完全重构为基础,提出了一种周期非均匀采样多带信号时的采样阶数、单通道采样周期等参数最优值的确定方法;同时以此方法的构建思想作为指导,推导出了采样阶数固定时最优单通道采样周期以及单通道采样周期固定时最优采样阶数等确定方法.最后,通过实例验证了通过该方法确定参数可保证周期非均匀采样多带信号时的采样频率降到最低.Based on the perfect reconstruction of the original signal,a computing method of the optimum sampling order and sampling rate for each channel of multi-band signals for periodically non-uniform sampling is proposed.And the paper derives computing methods of the optimum sampling rate for each channel on sampling order and the optimum sampling order on sampling rate for each channel.Finally,the computing method of parameters proves that by examples,multi-band signals can be validly sampled with the least sampling rate.

关 键 词：多带信号 周期非均匀采样 采样阶数 单通道采样周期 

分 类 号：TP391[自动化与计算机技术—计算机应用技术]