The reflection of thin layer may lead to frequency notch and the reciprocal of notch cycle is equal to the time thickness of thin layer.
薄层反射在频率域会出现陷频现象，其陷频周期的倒数等于薄层的时间厚度。
During signal processing, choosing low noise, high-precision, low-power amplifier AD620 as a pre-amplifier, and high-and low-pass filter and the frequency notch filter removal of interfering signals.
在信号处理中选用具有低噪声、高精度、低功耗放大器ad620作为前置放大器，并以高、低通滤波器和工频陷波器清除干扰信号。
An adaptive line enhancer based on the above notch filter extracts the fundamental frequency signal from noisy data.
采用自适应谱线增强器从含有噪声的数据中提取出基频信号。
Two key questions, selection of sampling period and phenomenon of frequency aberrance, must be considered when the continuous notch filter is discretized.
本文讨论了离散化时需重点考虑的两个问题：采样周期的选取和频率畸变。
The approach is relatively simple and can be used to design the filters with specific notch frequency and bandwidth.
在给定槽口频率和带宽的滤波器的设计中，该方法不仅可行而且简单。
A novel double-sampling double-delay switched capacitor resonator with high performance is proposed. High notch Q-value and accurate notch frequency are analyzed at the transfer function level.
在研究了开关电容谐振子的基础上，提出了一个新颖的高性能的双采样的双延迟式谐振子，传输函数级的分析和模拟表明该谐振子具有高的陷波Q值和精确的陷波频率。
The integrated, switchable Low-Pass Notch filter (a typical DYNACORD special feature) corrects the frequency response and optimizes the transient behaviour of loudspeakers.
集成的，可切换的低通陷波滤波器（一个典型的DYNACORD特殊功能）纠正的频率响应和优化扬声器瞬态行为。
A notch filter is proposed for single complex frequency estimation problem. It is represented as state-space equation model, which has good stability.
给出了一种用于单个复频率估计的陷波器传递函数，并将陷波器模型转换成状态空间模型，此模型具有很好的稳定性。
Meanwhile, the switched capacitor notch filter is designed, which can adjust center frequency freely by changing the switching clock frequency and make the center frequency highly accurate and stable.
介绍了数字化开关电容滤波技术，并设计了可以通过改变开关时钟频率来自由调整中心频率的开关电容带阻滤波器，使中心频率具有很高的精度和稳定度。
According to features of power quality disturbance signal, this paper detects the disturbance signals of high-frequency, transient impulse and voltage notch with wavelet transforming.
针对电能质量扰动信号的特性，本文采用小波变换对电力系统的高频、瞬时脉冲、电压切痕扰动信号进行检测。
By taking the rectangular metal patch on a printed circuit board as the radiation element and by cutting a C-shaped slot in the rectangular patch, a frequency band notch is implemented.
该天线采用印刷电路板上的矩形贴片作为辐射单元，通过在矩形贴片上开一个C形槽来实现陷波功能。
The traditional method to remove power frequency interference is to use a notch filter or adaptive filter.
传统方法是采用陷波滤波器或自适应滤波。
An adaptive notch filtering method is proposed for computing the output signal frequency of vortex flowmeters, and the experimental results are given in this paper.
本文提出采用自适应陷波方法计算涡街流量计输出信号的频率，并给出实验结果。
A real time processing system based on a digital signal processor is described in this paper, and the signal frequency of vortex flowmeter is computed by means of an adaptive notch filtering method.
本文介绍了以数字信号处理器(dsp)为核心的实时处理系统，采用自适应陷波方法计算涡街流量计信号的频率。
The Adaptive IIR notch filter has been widely used in many signal processing applications, especially in the estimation of the sinusoid component with unknown frequency buried in noise.
自适应IIR陷波器在许多不同的信号处理场合，尤其在估计淹没在噪声中的正弦波频率方面得到广泛应用。
The adaptive notch filter has only one parameter to be estimated, the interesting frequency value can be c...
此自适应陷波器只需估计一个参数，频率计算非常简单。
The adaptive notch filter has only one parameter to be estimated, the interesting frequency value can be c...
此自适应陷波器只需估计一个参数，频率计算非常简单。
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