A digital amplitude-frequency equalization power amplifier was presented.
设计实现了一个数字幅频均衡的功率放大器。
The motion stability, topology structure of amplitude-frequency response curves etc.
分析了运动稳定性、幅频响应曲线的拓扑结构等。
The results show saddle-node bifurcation arises in the turning point of amplitude-frequency curve.
研究结果表明幅频曲线转折点出现鞍结分叉。
With increasing in stiffness and excitation force, the distance between amplitude-frequency curves of the system enlarges.
随着弹簧刚度和激力的增大，系统幅频响应曲线上下两条曲线的距离逐渐增大。
Active band-pass filters are widely used in signal analysis and measuring because of its good amplitude-frequency property.
有源带通滤波器以其良好的幅频特性，在信号的分析与测量中得到广泛应用。
The stationary solution of system was solved by harmonic balance method, and the amplitude-frequency response was presented.
采用复变函数将系统的动力学方程简化，利用谐波平衡法分析了系统的稳态解，得到了系统的幅频响应。
Based on vector-spectrum method, the concept of vector amplitude-frequency figure and vector waterfall figure is established.
基于全矢谱理论，定义全矢幅频特性图和三维全矢瀑布图的概念。
Experiments demonstrate that the system has good amplitude-frequency response to the nano level vibration in the tunneling state.
实验表明，实验系统在隧道状态下对纳米级振动有很好的幅频响应。
The CAA can study and analyse the effects of all elements on the amplitude-frequency characteristic of active Filter systematically.
该CAA能系统地研究和分析二阶低通有源滤波器的各元件值对幅频特性的影响。
The vibration were measured using capacitance-detecting technology to get the amplitude-frequency and phase-frequency characteristics.
用电容检测技术测量其振动信号，以获得传感器幅频、相频特性。
The quantitative relationship between filtering parameters and amplitude-frequency and phase shift characteristics is analysed theoretically in this paper.
本文从理论上分析了滤波参数与幅频特性和相移特性的定量关系。
Compared with the amplitude-frequency characteristic of the window functions often used at present, its property has an advantage over the rising-cosine function improved.
与目前常用的几种窗函数的频率特性相比较，其性能优于改进的升余弦窗函数。
When frequency sweeping method being used properly for measuring amplitude-frequency characteristics, the analysis and estimation of errors in measurement results could be avoided.
正确使用扫频法测量幅频特性，可以避免大量测量结果中误差的分析与估算。
When the discharge occurs at different position, the discharge position can be located by the difference of amplitude-frequency characteristic of the signal measured at the same point.
不同位置发生放电时，可利用同一测量点所测信号根据其幅频特性的不同来确定放电位置。
The study on speech signal formant abstracted by LPC shows that it can also be abstracted by adopting phase-frequency characteristics and logarithmic amplitude-frequency characteristics.
通过对LPC(线性预测编码)方法提取语音信号共振峰进行的研究表明，采用相-频特性与对数幅-频特性同样能提取语音信号共振峰。
The phase-frequency and amplitude-frequency responses of the system were analyzed and experimented, which reasonably explains why the hysteretic curve changes with input signal frequency.
文中对所建立的系统进行了相频和幅频特性的理论分析和实验，合理地解释了此系统的迟滞曲线随输入信号频率变化的原因。
The amplitude-frequency characteristics measured by means of frequency sweeping are dynamic characteristics and those measured by means of point-to-point method are static characteristics.
用扫频法快速测量各种系统的幅频特性是动态特性，按逐点描绘法取得的幅频特性是静态特性。
With the methods of theoretical analysis, this paper reveals and researches the result of frequency offset and dynamic bandwidth of a filter network in its amplitude-frequency characteristic.
本文通过理论分析揭示并探讨了滤波网络扫频测量时幅频特性的频率偏移和动态带宽现象的成因。
The paper presents the multi-variable least square method to determine the optimal factor of data smoothing and its amplitude-frequency characteristics and compares it with the general filter.
本文提出了一种利用多变量最小二乘法确定最佳数据平滑因子的方法，建立了优化平滑器特性的数学模型。
The amplitude-frequency relation with respect to the natural frequency of the lowest order and amplitude-frequency response under harv monic force were obtained by considering single mode vibration.
考虑单模态振形，得到了相应于最低阶特征频率的幅频关系和受谐和激励的幅频响应。
The transmission function and the amplitude-frequency characteristic of the filter is deeply analyzed. This filter guarantees the system precision as the components of the BPF were picked with choice.
带通滤波电路是本系统消除噪声的关键部分，论文深入分析了带通滤波器的传输函数和幅频特性。
The analysis of vibration is introduced by its three factors-vibration amplitude, frequency and phase.
针对振动的三要素即振幅、频率及相位分别做了介绍；
Mapped the FIR digital filter design of amplitude frequency characteristic curve.
绘出设计的FIR数字滤波幅频特性曲线。
Different kinds of waves have each the same three characteristics: amplitude, frequency and length.
不同的波(各)都有三个相同的特性：幅度、频率和波长。
To vary the amplitude, frequency, or phase of a.
频率相对应的信号幅度或者增加。
The loads and the distribution of stress amplitude frequency are obtained by cycle count and reliable data for fatigue design are provided by probability density function fit.
用循环计数法求出载荷及应力幅频率分布，用概率密度函数拟合，为疲劳设计提供可靠性高的数据资。
In addition, a cold test model is designed based on a set of designed clustered cavities, the amplitude frequency response of each cavity is measured with network analyzer.
此外，对一套加工成形的簇腔模型进行了冷测模型设计，并使用网络分析仪测量了各个腔体的幅频响应。
The spectrum division technique was used for establishing signal model of delay time measurement, and amplitude frequency characteristics of the signal after spectrum division was investigated.
利用频谱相除技术构建了延迟时间测量的信号模型，研究了频谱相除后信号的幅频特性。
By harmonic analysis of the model we get the sensor's amplitude frequency curve and phase frequency curve.
对该模型进行谐响应分析，得到了该传感器的幅频特性曲线和相频特性曲线。
FOR radio transmission, inFORmation is imparted to a carrier wave by varying (modulating) its amplitude, frequency, or duration.
用于无线电传输时，信号用载波传送，通过改变(调制)载波的振幅、频率或间隔来实现。
应用推荐