多个带通信号低速率采样频率的选取方法  

A choosing method of low speed sampling frequency of multiple band-pass signals

作　　者：田丰[1] 程韧[2] 王晋国[3] 

机构地区：[1]长安大学理学院,陕西西安710064 [2]空军工程大学电讯工程学院,陕西西安710077 [3]西安交通大学理学院,陕西西安710049

出　　处：《西北大学学报（自然科学版）》2004年第3期286-288,共3页Journal of Northwest University（Natural Science Edition）

基　　金：国家自然科学基金资助项目(40174032)

摘　　要：目的　用公共的低速采样频率对全频段内许多不同频点的带通信号进行采样。方法　分析了带通采样信号的频谱和规律,导出了低速采样频率的选取公式。结果　给出了运用选取低速采样频率公式选取频率的方法。结论　合理选取频点和低速采样频率能够实现用公共的低速采样频率对全频段内许多不同频点的带通信号进行采样。AimTo use the common sample frequency in low speed to the sample of band-pass signals of multiple different frequency point in full frequency rage.MethodsAnalyze spectrum of the sample signal and propose the formula of common sample frequency in low speed.ResultsIt shows that the method of choosing the common sample frequency with the formula is given.ConclusionThrough arranging reasonably the frequency point and the sample frequency, it is possible to use the common sample frequency in low speed for the sample of band-pass signals of multiple different frequency point in full frequency range.

关 键 词：带通信号 采样信号 全频段 

分 类 号：TN911[电子电信—通信与信息系统]