| 一种新的带通信号采样方法 |
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| 引用本文： | 吕幼新,张明友.一种新的带通信号采样方法[J].通信学报,1993,14(4):74-77. |
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| 作者姓名： | 吕幼新 张明友 |
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| 作者单位： | 电子科技大学，电子科技大学 成都 610054，成都 610054 |
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| 摘 要： | 本文提出一种新的带通信号采样方法,实现对带通信号的“等效”低通信号采样。带通信号实际采样率仅为输出端所获同相分量和正交分量采样率的两倍,可以直接确定采样频率和设计低通抗混叠滤波器。该采样方法使用滤波器的多相结构实现,这种实现方法特别适合于线性相移FIR滤波器。
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| 关 键 词： | 采样 滤波器 信息处理 带通信号 |
A Novel Approach to Sampling of Bandpass Signal |
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| Lu Youxin and Zhang Mingyou.A Novel Approach to Sampling of Bandpass Signal[J].Journal on Communications,1993,14(4):74-77. |
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| Authors: | Lu Youxin and Zhang Mingyou |
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| Abstract: | A new method for sampling the lowpass equivalent of a bandpass signal is proposed in this paper. The sampling rate of the bandpass signal is exactly twice that of the in - phase and quadrature components obtained at the output. The sampling frequency determination and the lowpass anti - aliasing filter design are Straightforward. The implementation of the Sampling method is accomplished by the polyphase structure of the filter. This implementation is particularly suitable for linear phase FIR filter. |
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| Keywords: | In-phase Quadrature Sampling Decimation Polyphase Anti-aliasing Filter |
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