In this paper, a novel design method of a passband edge frequency continuous adjustable FIR filter is presented.
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。
Objective To observe the effects of different adjuvants on bispectral index (bis), spectral edge frequency (SEF) of electroencephalogram during lumbar anesthesia.
目的观察腰麻中不同辅助药对脑电双频谱指数(BIS)和边缘频率(SEF)的影响。
So, for the same SNR, edge techniques can improve the measurement accuracy of Brillouin frequency shift greatly comparing with the conventional detection techniques.
所以，在相同信噪比下，与常规检测技术相比，边缘检测技术可以大大提高布里渊频移测量精度。
A principle study of detecting laser frequency signals based on edge technology for atmospheric laser communications is presented.
介绍了利用边缘技术检测激光频率信号，实现大气激光通讯的原理。
Usually, the edge of image is the high frequency of frequency field.
通常，图像的边缘为频率域的高频分量。
Spontaneous emission can be totally suppressed or strongly enhanced depending on the relative position of the resonant frequency from the edge of the photonic band gap and the photonic mode density.
通过原子上能级与光子频率带隙边缘的相对位置或者光子态密度，可以抑制或增强原子的自发辐射。
By inserting a slot at the edge of the rectangular slot on the ground plane and loading a C-shaped resonator near the microstrip line, dual band-notched characteristic at the central frequency at 3.
通过在地板上的矩形槽的边缘开槽和在馈线旁加载C形谐振器，该天线实现在中心频率3。
Universally analyzed and discussed in this paper is the visualization of inhomogeneous phase distribution of phase objects with spatial zero frequency filtering and knife edge filtering method.
对空间滤波法的零频滤波与刀口滤波显示位相型物体的非均匀位相分布进行较为普遍且详尽的分析讨论，并给出一些实验结果。
A circle-like criterion will be given it says that some frequency-domain conditions of all vertex or edge systems guarantee the absolute stability of the whole uncertain system.
我们将给出一个类似的圆判据，它说，所有顶点或边系统的某些频域条件可保证整个不确定系统是绝对稳定的。
The extraction of ocean fronts is to extract the edge information between ocean water mass, which belongs to the high frequency extraction from ocean fields.
海洋锋信息的提取是提取海洋水体问的边缘信息，是属于海洋要素场高频信息的提取。
The scheme of measuring Brillouin frequency shift in fiber sensor based on edge optical filter is proposed.
提出了采用边缘光滤波器来测量光纤传感中布里渊频域的方案。
The edge transition of pulses from incremental encoder can be detected with double frequency to improve measurement precision, and to avoid measurement errors and accumulative errors.
汉字和图形相结合。对增量编码器的脉冲信号沿变化进行倍频检测，提高分辨精度，避免计数误差和累积误差。
In comparison with the traditional algorithm, it can remove the discontinuous influence of the carrier frequency, object edge, shadow and blind spots.
与传统的条纹相位去包裹方法相比较， 该方法能够消除光载频、物体边缘、阴影和盲点的影响。
A novel edge-triggered D-flip-flop based on a resonant tunneling diode (RTD) is proposed and used to construct a binary frequency divider.
提出了一种基于共振隧穿二极管的新型边沿触发d触发器并将之用于构成二进制分频器。
The duration of bound-entangled state (non-distillable) is controlled by the resonant control laser and the detuning of the atomic frequency inside the gap with respect to the band-edge.
束缚纠缠态（不能提纯的纠缠态）在系统中的持续时间由驱动场的拉比频率以及原子能级和光子晶体禁带带边的相对位置决定。
However, Pulse Width Modulation (PWM) which was input from inverter is characterized by steep rising edge and high frequency, resulting in the too early failure of motor insulation.
然而，逆变器输出的PWM(脉冲宽度调制)连续高压脉冲的上升沿很陡、频率很高，导致在脉冲电压下牵引电机绝缘过早失效。
Properly shifting the filter on the frequency region can improve the contrast and the contour acuity of the output image. It is profitable for edge detection.
阶跃滤波器在频域的适当的位移(偏置)即可以改善输出图像的衬底，也能改善其轮廓视锐度，从而有利于图像边缘的检测。
The enhanced gradient operator was designed to stand out the edge of image and retain the low frequency information.
此外还开发了增强型的梯度锐化算子，它既突出了边缘信息，又保留了低频信息，便于人和机器的一些后续处理。
The leading-edge serrations have no effect on the instability noise peak frequency.
前缘锯齿对边界层不稳定噪声峰值频率没有影响。
The technology of hydraulic vibration is a new field in hydraulic technology, and the super-frequency hydraulic vibration is a front edge subject and is always a key in study.
液压振动技术是液压技术新领域，高频液压振动又是该领域的前沿课题，一直是人们研究的重点。
In the MTF measurement, the object is slant edge, compared with old edge measurement, it has no Angle adjustment device, and improved sampling frequency.
调制传递函数的测量中，采用倾斜刀口作为分析对象，与传统的竖直刀口采样相比，省掉了角度调整装置，并且提高了采样频率。
Both the noise and the edge belong to high frequency signal, it's hard to pick up with frequency band.
噪声和边缘一样都属于高频信号，很难用频带来做取舍。
It is shown that in the present numerical investigations, the trailing edge shape and the reduced frequency have an important influence on the vortex evolution.
数值研究表明，后缘形状、折合频率等对涡结构演化有重要影响。
So far people have put forward some basic methods for evaluate the MTF values of the lens, such as knife-edge method, laser speckle method and extended frequency aperture (EFA) method.
迄今为止，人们已经提出了诸如刃边法、激光散斑法、扩展频率孔径法等多种测量离散成像器件MTF的方法。
The results prove that when the edge length keeps constant, the buckling strength decreases quickly with the increasing height, while the resonant frequency rises after an initial decline.
结果表明，当蜂窝边长一定时，随着蜂窝高度的增加，屈曲强度迅速下降，共振频率先下降后升高；
Secondly, the low- frequency part and details are edge-detected using dilation and erosion at the same time, further, the results are averaged.
然后对低频部分同时做膨胀和腐蚀边缘检测，并对得到的结果求其平均值；
Then, the edge enhancement gains are evaluated according to the noise distributions on the spatial-frequency domain;
依据统计特性来估计噪声在空频域上的分布，并依此构造具有空频自适应性的边缘增强增益；
Then, the edge enhancement gains are evaluated according to the noise distributions on the spatial-frequency domain;
依据统计特性来估计噪声在空频域上的分布，并依此构造具有空频自适应性的边缘增强增益；
应用推荐