熟悉线性相位FIR数字滤波器特性。
Familiar with linear phase FIR digital filter characteristics.
本文从理论上分析了小波滤波器特性,提出了一种适合弱小目标图像的快速滤波方法。
This dissertation makes a theoretical study of filter feature, then applies it into small image denoising, and present a fast denoising method suitable for small target images.
文章利用抽样定理,首次由频谱的混叠导出物理上可实现的第一类部分响应形成滤波器特性。
By using Sampling Theorem, the paper first deduce the characteristics of the first class partial response shaping filter that can be realized on the physical from the spectrum overlap.
在数字通信系统中,滤波器是其中重要部件之一,滤波器特性的选择直接影响数字信号的恢复。
In digital communication system, the filter is one of the important components of the filter characteristics of the choice of a direct impact on digital signal recovery.
利用传输矩阵法设计了一种适用于绿光波段的光子晶体窄带滤波器,并研究了影响滤波器特性的多种因素。
A photonic crystal narrow band filter at green light wave band is designed with optical transfer matrix method, and some factors affected are studied.
本文阐述了电视信号三维频域的建立及其基本概念,并从三维频域的角度对亮色分离滤波器特性进行了分析。
This paper describes the essential concept and modelling of video signal in 3-d frequency domain, and from the point analyses the feathers of the brightness-colour separation filter.
本文介绍一种具有滤波器特性的SAW延迟线的设计分析和实验结果,并就几个问题进行了讨论,提出了一些看法。
Analysis, design and experimental results of SAW delay lines exhibiting filter characteristics are reported in this paper. Views on the problems relating to the devices are discussed and proposed.
FIR数字滤波器以其良好的线性相位特性被广泛使用于现代电子系统中。
In the modern electrical system, FIR digital filter is widely favorable for many applications due to its well linear phase characteristics.
本文根据极限环特性对单舍入量化器二阶数字滤波器的零输入稳定性进行了分析。
In this paper the zero-input stability of second-order digital filters with a rounding quantizer has been analyzed by the properties of limit cycles.
数字仿真和实验结果表明,该控制策略能较好地实现有源电力滤波器的解耦控制,具有较好的动态特性和较强的鲁棒性。
Simulation and experimental results confirm the decoupling control strategy for the power filter. It has preferable dynamic characteristics and robust quality.
然后利用MATLAB进行仿真调试,对比设计要求和滤波器响应特性,反复调整滤波器lc参数,以获得最好的滤波性能。
Then we repeat modifying its LC parameters through MATLAB simulation, compared with the design demand and the filter's responding characteristic to obtain the best filtering capability.
阻带零点抑制是比消失矩约束更为严格的设计条件,能够更有效地控制滤波器的阻带特性。
The stopband zero suppression is a stricter design constraint than the vanishing moments, and can more effectively manipulate the stopband characteristics of filters.
提出了一种减小表面粗糙度测量用的高斯滤波器幅度传输特性偏差的新方法。
A new approach for decreasing the amplitude characteristic deviation of Gaussian filter in surface roughness measurements is presented.
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。
Active band-pass filters are widely used in signal analysis and measuring because of its good amplitude-frequency property.
本文简述了它的工作原理,并在前人分析的基础上提出了滤波器动态概率变换特性的概念。
In this paper, the basic principle of this DPLL and the concept of the dynamic probability transformation characteristic are proposed.
对串联混合型有源电力滤波器的电路结构、系统特性、控制方法等进行探讨与分析。
The circuit structure, control method and system characteristics of the hybrid type series active power filter are discussed.
分析了由双光纤定向耦合器组成的梳状滤波器的透射特性。
The transmission characteristics of all_fiber filter composed of double fiber directional couplers were studied.
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.
时窗函数的性质对修正数字滤波器的特性起着决定性作用,所以研究理想的时窗函数显得特别重要。
The characteristic of time-window function plays a decisive role in revising the characteristic of digital filter; therefore, it is particularly important to study ideal time-window function.
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.
采用矩阵分解的方法,从柯林斯衍射积分公式出发,对高斯光束通过失调空间滤波器的传输特性进行了分析,得到了相应的解析式。
Based on the method of matrix decomposition, and the Collins diffraction integral formulae, the propagation characteristics of a Gaussian beams passing through misaligned spatial filter are studied.
若把两种滤波器级联,低频特性可以互相补偿。
The low frequency characteristic can be compensated if two kinds of filters are cascaded.
对F P干涉滤波器的原理特性进行了分析。
The principle and properties of FabryPerot interference filter are analyzed.
研究了截断信号边界的“吉布斯”现象及数字滤波器相位特性对有限区间信号滤波处理的影响。
The effects of the Jibbs'phenomenon and the phase property of the digital filter on the edges of cutoff signal with limited time domain after filtered is studied.
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.
仿真结果显示,复合余弦基神经网络图像去噪滤波器各项特性接近理想滤波器。
The simulation results reached nearly ideal filter characteristics, and the performance of removing image noise using this filter was compared with the median filter.
然后利用方向可变滤波器检测图像边缘及边缘方向特性;
Then with the help of steerable filters, the method detects image edges and the orientations of them.
考虑到运动载体上重力传感器的输出特性,在最优滤波器的重力观测方程中引入了厄特弗斯效应。
In view of the measurements made by an onboard gravity sensor the Eotvos effect is introduced in the gravity measurement equation of a GPNS optimal filter.
针对F-P滤波器的非线性特性的影响,分析了设置波长参考的必要性并提出了具体方法。
A set of wavelength reference is involved in the system as calibration to correct non-ideal performance of the F-P filter.
我们演示了这种新型滤波器并对它的特性进行了理论分析。
This new kind of optical filter was demonstrated and its behavior was analyzed theoretically.
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