结果表明，可以将该结构设计成多通道频率滤波器和多通道角度滤波器。
The results indicate that the Ag-air structure can be used as a multi-channel frequency filter and spatial filter.
这种方法克服了以往采用固定频率滤波器带来的相移和频率漂移问题，而且结构简单。
This approach the problem of conquers phase excursion and frequency drift that anciently adopts fixed frequency filter and its frame is simple.
通过调节泵浦功率、调制频率和可调谐滤波器，可以产生不同波长的混沌信号，并实现混沌的同步。
Chaotic signals at different wavelengths can be generated by adjusting the pump power, modulation frequency and tunable filter, and chaos synchronization is achieved.
对外电路而言，在基波频率下有源滤波器被控制为无限大阻抗，在谐波频率下被控制为小电阻。
The active filter acts as an infinite impedance to the external for the fundamental frequency and as a low resistor for harmonic frequencies.
结果表明，低通滤波器的截止频率、阶数和类型对检测电路的动态响应过程、检测精度都有很大影响。
The simulation result shows that the dynamic response and the detection precision in detection circuit can be greatly influenced by the cut-off frequency, order and type of low pass filter.
基于T型滤波器的调光方法，能在很窄的工作频率范围内实现深度调光，同时具有灯电流波峰因数低的优点。
Based on T type filter, the new ballast can achieve a wide dimming range with a very narrow frequency variation range, and it can operate with low lamp current crest factor.
在这些情况下，可向开关加入滤波器来改变信号的频率带宽，或者从发射到DUT的信号中消除有害频率的杂散信号。
In these cases, filters can be added to the switch to modify the signal frequency bandwidth, or spurious signals at unwanted fre quencies can be eliminated from the signal to the DUT.
频率采样技术是FIR数字滤波器设计的常用方法之一。
Frequency sampling is one of the popular methods in FIR digital filter design.
针对电流型电荷泵PLL频率综合器芯片，提出一种称为极值相位裕量的无源环路滤波器方案和设计方法。
A passive loop filter scheme and the design method of the filter for current charge pump PLL frequency synthesizer chip are given in the paper.
提出了一种利用富氏滤波器的输出测量电力系统频率的算法。
An algorithm which USES output of the Fourier filter to measure power system frequency is presented.
看待这个问题的一种方法是，系统模态只不过是一组非常复杂的滤波器，在频率基础上具有将输入信号进行放大和衰减的能力。
One way to look at it is that the modes of the system are nothing more than a very elaborate set of filters which have the ability to amplify and attenuate an input signal on a frequency basis.
噪声，高频率，阶线性相位低通滤波器。
记住对于选择正确的滤波器系数，采样频率很重要。
Remember that the sample rate is very important to choosing the right coefficients.
对数字载波的频率及频谱成形滤波器的特性参数的选择提出了建议。
The author also makes some Suggestions for frequency selection of digital carrier and parameters selection of spectrum shaping filter.
噪声，高频率，8阶线性相位低通滤波器。
Noise, High frequency, 8th Order Linear Phase Lowpass Filter.
研究了该滤波器的中心频率的可调谐特性。
The center frequency tunability characteristic of the filter is investigated as well.
带通滤波器的特性通过两个参数表示：带通中心频率和共鸣带宽。
Two parameters are used to specify the characteristics of a BPF: passband centre frequency and resonance bandwidth.
分析了一阶分形模糊控制滤波器的频率-幅度特性，白噪声和有色噪声分形盒维数的变化；
The frequency-magnitude response of the fractal filter and the change of fractal box dimension of white noise and color noise are analyzed.
自定义的控制高通滤波器，频率衰减低于特定的频率。
The controls customize a high pass filter, which attenuates frequencies below a given frequency.
研究了谐振子频率的温度特性并设计了频率跟踪带通滤波器。
Studies the resonator frequency temperature characteristic, then designs the middle-frequency tracking band pass filter.
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。
The approach is relatively simple and can be used to design the filters with specific notch frequency and bandwidth.
并针对不同的滤波器长度N和频率向量的设置（传统对称或偶对称），设计出了4种全相位半带滤波器。
Moreover, corresponding to different filter length N and frequency vector setting modes(traditional symmetry or even symmetry), 4 types of all-phase half-band filters were designed.
提出了一种通带截止频率连续可调的低通滤波器的新的设计方法。
In this paper, a novel design method of a passband edge frequency continuous adjustable FIR filter is presented.
常规频率特性无法解释时滞滤波器抑制柔性机构残留颤抖的内在本质。
The internal mechanism of time delay filter to reduce the residual vibration of flexible structures cannot be explained with the normal frequency characteristic.
提出了基于载波组合相移技术的电流型电力有源滤波器，在较低的开关频率下实现了等效的高频载波效果。
With this technique, the effect of equivalent high switching frequency converter has been obtained with low switching frequency converter.
由于有锁频环的频率牵引，锁相环路滤波器可以设计得很窄，具有很好的抑噪性能，满足精确跟踪载波相位的要求。
Due to the frequency pulling of FLL, the passband of the filter in PLL can be made very narrow to suppress the noise, and the PLL can lock carrier's phase with high accuracy.
然后给出了求解逼近给定幅相频率响应的FIR实系数滤波器的线性规划方法；
Then a linear programming method is proposed to construct the FIR filter correcting the amplitude and phase errors simultaneously.
新的方向滤波器组具有良好的方向和频率选择性。
The new DFB can provide good directional and frequency selectivity.
该解调器由数字混频器、数字频率合成器(DDFS)和低通滤波器构成。
This initial demodulator incorporates a digital mixer, DDFS and low-pass filter.
通过键盘设置参数，实现放大器放大增益步进调节、滤波器带通频率步进调节功能。
Its parameters can be regulated by keyboard in order to control amplification and cutoff frequency by step.
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