湖北第二师范学院学报
湖北第二師範學院學報
호북제이사범학원학보
JOURNAL OF HUBEI UNIVERSITY OF EDUCATION
2012年
2期
30-32
,共3页
抽样定理%奈奎斯特速率%LabVIEW%仿真
抽樣定理%奈奎斯特速率%LabVIEW%倣真
추양정리%내규사특속솔%LabVIEW%방진
sampling theorem%Nyquist rate%LabVIEW%simulation
与连续时间信号相比,离散时间信号的处理更加灵活、方便,应用更加广泛。在实际应用中,通常先将连续时间信号转换成离散时间信号,前提是抽样过程必须满足抽样定理。抽样定理在连续时间信号与离散时间信号之间架起了一座桥梁。本文利用LabVIEW对抽样过程进行仿真,并对抽样定理的条件与结论进行验证和讨论,通过研究可以得到符合实际应用的结论,同时加深对抽样定理的理解和把握。
與連續時間信號相比,離散時間信號的處理更加靈活、方便,應用更加廣汎。在實際應用中,通常先將連續時間信號轉換成離散時間信號,前提是抽樣過程必鬚滿足抽樣定理。抽樣定理在連續時間信號與離散時間信號之間架起瞭一座橋樑。本文利用LabVIEW對抽樣過程進行倣真,併對抽樣定理的條件與結論進行驗證和討論,通過研究可以得到符閤實際應用的結論,同時加深對抽樣定理的理解和把握。
여련속시간신호상비,리산시간신호적처리경가령활、방편,응용경가엄범。재실제응용중,통상선장련속시간신호전환성리산시간신호,전제시추양과정필수만족추양정리。추양정리재련속시간신호여리산시간신호지간가기료일좌교량。본문이용LabVIEW대추양과정진행방진,병대추양정리적조건여결론진행험증화토론,통과연구가이득도부합실제응용적결론,동시가심대추양정리적리해화파악。
The processing for discrete-time signal is more flexible,convenient,and more widely used,compared with continuous-time signal.In practice,continuous-time signal is usually changed into discrete-time signal firstly,provided that the sampling process meets the sampling theorem.Sampling theorem sets up a bridge between continuous-time signal and discrete-time signal.But must the restrictions and conclusion of the sampling theorem coincide with the actual application? In this paper,sampling process is simulated by using LabVIEW,and the conditions and conclusion of sampling theorem is validated and discussion,through which shows that the restrictions and the conclusion of sampling theorem agrees with the practice;meanwhile,understanding and grasp of sampling theorem is deepened.