为了提高频谱分析的精度，要求对振动信号进行整周期等相位采样。
In order to improve the accuracy of spectrum analysis, it's better to sample the vibration signals in the way of full cycle and equal phase.
设计了以C8051F 060混合信号微控制器为核心的全数字信号检测系统，实现其采样信号和调制信号的相位关系保持。
An all digital signal detecting system using C8051F060 as its core was completed. It can maintain the phase relation of sampling signal and modulating signal.
正交采样技术可以保留信号复包络的幅度、相位等信息，因此在信号处理领域中有着广泛的应用。
Quadrature sampling technique is widely used in the field of signal processing since it can reserve all information about the complex envelope of IF signal.
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