在许多测试仪中需要用标准的正弦信号检测一些物理量。
In many tester using standard need in the sine signal detection some physical quantities.
本文致力于研究噪声抵消、正弦信号检测及参数估计等问题。
This dissertation is devoted to the study of noise suppression, sinusoid signal parameters estimation and detection.
理论分析及仿真实验表明该检测系统对被强噪声覆盖的微弱正弦信号非常敏感，对任何零均值噪声具有极强的抑制能力。
Theroy and simulation study have shown that this detection system is very sensitive to weak sine signal under strong noise and can effectively restrain any strong noise which has zero mean.
利用实时相位检测电路，从正弦相位调制干涉信号中解出被测量物体表面形貌的相位。
The phase signal of the surface profile is detected from the sinusoidal phase-modulating interference signal using a real-time phase detection circuit.
设计一个采用DSP技术和数字相关法测量两路正弦信号相位差的检测系统。
A measurement system for sine signal phase difference is designed by using DSP and digital correlation method.
传感器输出的检测信号是中频的正弦电压信号，为采集和处理该信号，设计了以P89C51RD2单片机为核心的数据采集器电路。
The output signal of the sensor is the sinusoidal signal with intermediate frequency. To sample and process this signal, a data collection circuit that centers on P89C51RD2 single chip is designed.
埋藏在噪声中的正弦波，利用相关技术进行检测，能够测定信号的大小和相位。
Using correlative technique to detect the sine wave in yawp is a good method for picking up certain signal from yawp jam, which can determine the size and phase of signal.
研究了多信号检测，分析了检测性能随正弦信号个数和幅度比的变化。
Detection of multiple signals is studied, the change of detection performance is analyzed what is contact with the number of sinusoid signals and the ratio of each amplitude.
研究了多信号检测，分析了检测性能随正弦信号个数和幅度比的变化。
Detection of multiple signals is studied, the change of detection performance is analyzed what is contact with the number of sinusoid signals and the ratio of each amplitude.
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