摘要
针对一种特殊的带通信号,即线性调制信号且载波频率与信号带宽之比为整数,研究了采样率的选取问题。此类信号的采样率可超越Nyquist采样定理的限制,文中以二进制幅度键控信号为例进行仿真,验证了结论的正确性。
Due to a kind of special bandpass signals, a linear modulation signals and the ratio between earner frequency and bandwidth of signals is an integer, the paper researches on the problem of sampling frequency choice. Sampling frequency of this kind of signals can surpass the barrier of Nyquist sampling theorem. A simulation test is conducted taking with the 2ASK as an example, and correctness of the conclusion is verified.
出处
《山西电子技术》
2007年第3期58-60,共3页
Shanxi Electronic Technology
关键词
带通信号
采样率
bandpass signals
sampling rate
