摘要
本文在文[1 ,3] 的基础上 ,作为欠采样问题研究的应用的一个实例 ,研究了周期信号的欠采样问题 .其中包括 :被恢复的信号的步进 (步退 )采样频率的选取范围 ,选取方法 ,最高恢复频率 ,恢复精度等 ,仿真结果验证了本文内容的有效性 .
Based paper ,as the applied example of non Nyqist sampling, this paper studies on Signal Process Principle of non Nyqist sampling of superhigh frequency period signal. Among including:forward (moving back) sampling of recovered signal, choosing range and method of sampling frequency, highest recovered frequency, recovered precision and so on. Imitation′s result proves validity of this paper′s substance.
出处
《传感技术学报》
CAS
CSCD
2001年第4期360-365,共6页
Chinese Journal of Sensors and Actuators
关键词
欠采样
香农采样定理
信号检测
sampling
non Nyqist sampling
Shannon sampling theorem.