Using hardware digital synthesis method, the signal source generates three phase sinusoidal voltage and current signal.
该信号源中采用硬件数字合成的办法产生三相电压与三相电流信号正弦波。
The theories of the sample integral and the cross - mutuality for the sinusoidal signal phase difference estimation are analyzed, and the digital simulation experiment is carried out.
对正弦信号相位差估计的取样积分和互相关两种方法的理论进行了分析，并进行了数字仿真实验。
This design construct an sinusoidal signal generator based on DDS(Direct Digital Frequency Synthesis), completed by MCU AT89S52 and necessary analog circuit.
本设计采用AT89S52单片机，辅以必要的模拟电路，实现了一个基于直接数字频率合成技术（DDS）的正弦信号发生器。
To reduce certain sinusoidal frequency components in a signal in amplitude, digital filtering is done.
为了减少在信号幅度上一定的正弦信号部分的频率，数字滤波器应运而生了。
To reduce certain sinusoidal frequency components in a signal in amplitude, digital filtering is done.
为了减少在信号幅度上一定的正弦信号部分的频率，数字滤波器应运而生了。
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