On the basis of signal phase matching principle and the method of least squares of parameter estimation, a method for single-frequency signal detection is presented in this paper.
根据信号相位匹配原理及其信号参数的最小二乘估计方法,提出了一种单频信号检测方法。
The camera works by illuminating objects with a laser that emits a different infrared frequency for every single pixel, allowing them to custom-amplify a signal that would otherwise be too dim to see.
该相机的工作原理是:用一束激光照在物体上,每一个像素点都被不同红外频率的激光照着,以此来优化放大在其他情况下太弱而看不见的信号。
Through collecting vibration signal and analyzing it in the frequency domain in the condition of changing parameter cutting, a single self power spectrum is hard to detect tool breakage effectively.
在变切削参数的加工工况下,通过对振动信号的采集和频域处理,发现采用单一的自功率谱方法难以有效检测出刀片破损。
Based on single magnetic dipole model, the spatial filtering method of cardiac magnetic signal in the frequency domain was investigated.
本文利用心脏磁场单磁偶极子模型研究了心脏磁场强度检测信号的频域空间滤波法。
The real arbitrary waveform generator that can generate single acoustic frequency signal modulated by Manning window and Gaussian window is developed.
成功地实现了汉宁窗、高斯窗调制的任意频率单音频信号的产生,达到了任意波形发生器的功能。
There are many reports on extracting the single frequency signal under noise by the stochastic resonance, but in which the information that the signal carries is zero.
已有利用随机共振在强噪声下提取单一频率信号的若干报道,但单一频率信号所携带的信息量为零。
This paper presents a simulative method to solve the frequency response of single quantum well laser diode under small signal modulation.
文中运用三层速率模型,对小信号调制下单量子阱激光器的频率响应进行模拟分析。
The producing methods of various threaten signals are researched. And the model of the dense and complex radio frequency pulse signals is founded on the analysis of single radar signal.
本文研究了各种威胁信号的产生方法,在单部雷达辐射信号分析的基础上建立了密集,复杂射频脉冲信号的模型。
The most major advantage of the method lies in the fact that only the interference wave with single frequency can be suppressed, and the loss of useful signal is very limited.
本方法的最大优点是仅对单频干扰波进行有效的压制,对有效波的损失很小。
Next, minimum mean square error (MMSE) filters are applied to the received signal to recover single user signal wave thus implementing user separation and frequency synchronization at the same time.
然后,对接收到的信号应用最小均方误差滤波恢复单用户信号波形,从而同时实现了多用户信号分离及频率同步;
The nonlinear vibration characteristics of resonant silicon microstructure pressure sensor are investigated under single and two frequency excitation signal conditions.
本文研究了谐振式硅微结构压力传感器在单频激励和双频激励情况下的非线性振动特性。
The analysis of related theory proved that the fault vibration signal of rotating machinery is a complex signal which has some components with single frequency.
通过对相关理论的分析证实了旋转机械的故障振动信号基本上是一个复合信号。
The differences between the ambiguity function of STMFCW signal and single slope linear frequency modulation continuous wave signal and pulse LFM signal are also discussed.
阐明了它与单斜率线性调频连续波信号和脉冲LFM信号模糊函数的区别;
The interference effects of single frequency, digitally modulated signal and radar signal to FM TV systems are studied by means of the subjective and objective measurements.
通过主观测量和客观测量研究了单频、数字调制信号和雷达信号对调频电视系统的干扰效应。
For a linear array CCD in a push-bloom imaging system, on condition that the input signal is a sine pattern with single frequency, the output signal spectrum is analysed.
假定输入为单频正弦光栅,对刷扫工作状态下线列CCD输出信号的频谱进行了分析。
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.
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 transformer transforms a differential radio frequency (RF) signal to a single-ended RF signal.
所述变压器将差动射频(RF)信号变换成单端RF信号。
The transformer transforms a differential radio frequency (RF) signal to a single-ended RF signal.
所述变压器将差动射频(RF)信号变换成单端RF信号。
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