1)differential coefficient filter微分滤波
1.Image edge is enhanced by optical image differential coefficient filter and the optical image with enhancde edge and contrast are got.介绍了激光散斑干涉图像离焦法 ,并将其应用于光学图像的微分滤波 ,增强图像的边缘 ,从而得到边缘对比度较大的光学图像的原理与方
英文短句/例句
1.Fractional-Order Differentiation Filter and Estimation of Gaussian Distribution Parameters分数阶微分滤波器及高斯分布参数估计
2.The Research of Miniaturization Microwave Bandpass Filter and Design of New-Style Fractal Filter;微波带通滤波器小型化的研究和分形结构新型滤波器的设计
3.Numerical Simulation of Microstrip Filter by Finite-Difference Time-Domain Method;微带滤波器的时域有限差分仿真研究
4.Review on Derivative-Free Nonlinear Bayesian Filtering Methods免微分非线性Bayesian滤波方法评述
5.Research on Microwave Fractal Reconfigurable MEMS CPW Band-Pass Filter;微波MEMS共平面分形可重构带通滤波技术研究
6.Analysis and Design of the Photonic Microwave Filter Based on FBG;基于FBG的微波光子滤波器的分析和设计
7.Theoretical Analysis of Tunable Microwave Photonic Band-Pass Filter可调谐微波光子带通滤波器的理论分析
8.Microwave-based Communications Platform to the Microwave Filter Analysis and Design;基于微波通信实训平台的微波滤波器的分析与设计
9.Analysis and Design of Novel Microwave and Millimeter-Wave Waveguide Filters and Diplexers with Compact Configuration;紧缩结构的新型微波毫米波波导滤波器和双工器的分析和设计
10.Fractional-Order Calculus Filter Theory、Application and Fractioanal-Order System Identification;分数阶微积分滤波原理、应用及分数阶系统辨识
11.Design Method and Improvement of ⅡR Fractional Order Differential Filter一种分数阶微分ⅡR滤波器的设计方法和改进
12.The Design of Coaxial Filter and UWB Microstrip Filter;同轴滤波器与UWB微带滤波器的设计
13.Analysis of Waveguide Discontinuities Using Mode Matching Method and Applications in Microwave Filter;波导不连续性的模式匹配法分析及其在微波滤波器中的应用
14.The following is a partial list of microstrip lowpass filters and their specifications that we have produced.以下为生产过的微带低通滤波器部分产品规格。
15.active filter hybrid有源滤波器混合微电路
16.Iterative Adaptive Wiener Filtering Denoising Algorithm in the Wavelet Domain Based on PDE;基于偏微分方程方法的小波域自适应维纳滤波迭代去噪算法
17.Based on the Dual-tree Complex Wavelet with 6 Directional Wiener Filter Combine Partial Differential Equation in Image Denoising复小波域维纳滤波与偏微分扩散相结合的图像去噪方法
18.Research on the Distributed Circuit Parameters of Non-uniform Microstrip Line and on the Miniaturised Microstrip Bandpass Filters;非均匀微带线分布电路参数及小型化微带带通滤波器研究
相关短句/例句
differential filters微分滤波器
3)power spectrum differential filtering功率谱微分滤波
4)Partial Differential Equation Smoothing偏微分方程滤波
5)Fractional-order differentiation filter分数阶微分滤波器
1.A fractional-order differentiation filter is designed to obtain fractional-order differential of a given signal and to simplify computation of the fractional-order differential.设计了一种分数阶微分滤波器。
6)Microwave filter微波滤波器
1.The current status and developing tendency for computer aided tuning of microwave filter is introduced briefly in the paper.为了降低微波滤波器调试的难度,减少调试工作对经验的要求,提高调试的效率,在微波滤波器的调试工作中引入了计算机辅助调试技术。
2.In recent years with the fast development of mobile communications, personal communications and the high integration of integrated circuits, microwave filter as one of the necessarily equipments in wireless communications systems, are becoming smaller and smaller.本论文提出了几种新颖的小型化，高性能微波滤波器设计，并用FDTD法做了分析和研究。
3.Based on mode matching method, combined with microwave filter design theory, several low-pass, band-pass filters with different discontinuity structure, and a k band diplexer is designed.最后结合微波滤波器的设计理论和数值优化方法设计了几种低通、带通滤波器，制作了一只k波段双工器，给出了模式匹配法和HFSS的仿真比较，以及k波段双工器的实测数据，结果表明仿真数据和实测数据吻合很好。
延伸阅读
波数字滤波器 由两端终接电阻负载的无源LC梯形滤波器导出的一种数字滤波器结构。应用双线性变换S=k(1-Z-1)/(1+Z-1)可将用波参数描述的无源元件,实现为数字元件。表1列出了无源元件R、C、L及其对应的由延时单元、乘法器和加法器构成的数字元件。 通常高阶递归型数字滤波器的级联型或并联型有产生极限环振荡的危险。此外,在输入信号非常小时,由于舍入误差的高度相关，也可能导致数字滤波器的不稳定而产生固定振荡。1971年，提出波数字滤波器的伪无源性概念，并论证了这种数字滤波器的低灵敏度特性。波数字滤波器具有良好的稳定性，可以用较短的系数字长实现，有良好的动态范围，不会出现极限环振荡（即在环路情况下应用也不会出现任何杂散振荡）。这种数字滤波器特别适用于通信系统。 在波数字滤波器结构中，用波参数描述的元件，在联接时必须遵从端口间阻抗匹配的原则。相应地，数字元件之间的联接按其为串联或并联分别采用由乘法器和加法器构成的串联适配器或并联适配器匹配联接。适配器符号及其对应的联接关系见表2。图为三阶椭圆型低通LC 梯形滤波器及其等效的波数字滤波器。 波数字滤波器的另一种结构称为波格型数字滤波器，是由对称型或格型无源LC 滤波器导出的。 参考书目 A. Antonious, Digital Filter : Analysis and Design,McGraw-Hill Co.,New York,1979.
