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   频率选择特性 在 无线电电子学 分类中 的翻译结果: 查询用时:0.468秒
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频率选择特性
相关语句
  frequency selectivity
    Fortunately,Gabor filter also has characters of direction and frequency selectivity. We use the local direction and frequency of the fingerprint image as the Gabor filter function's parameters,and then compute the convolution of the Gabor filter and the fingerprint image. In this way,we remove the noise from the fingerprint image effectively.
    现把 Gabor滤波器应用在指纹图像增强处理中 ,利用了 Gabor滤波器的方向选择和频率选择特性 ,把指纹图像的局部方向和局部频率作为 Gabor滤波函数的参数 ,然后把 Gabor函数与纹理图像进行卷积 ,从而去除图像噪声 ,达到了增强图像的目的。
短句来源
    The filter has a pair of transmission zeros around the passband, excellent frequency response and frequency selectivity.
    该滤波器在通带附近有一对传输零点,具有良好的频率响应以及频率选择特性
短句来源
    We get finally a multilayered LTCC three-stage bandpass filter with a small size and high frequency selectivity.
    通过上述场与路相结合的设计方法,获得了尺寸小、频率选择特性好的多层LTCC三级带通滤波器。
短句来源
  “频率选择特性”译为未确定词的双语例句
    Transverse Modes and Frequency Selective Loss Function of a Resonator Composed of a Cylindrical Mirror and a Diffraction Grating
    柱面镜-光栅谐振腔模式与频率选择特性
短句来源
    The development status of PBG structure is presented in this paper. If we apply the PBG material to normal microwave circuit, taking advantage of its frequency-selective property, we can construct the passive component such as filter and directional coupler.
    本文叙述了PBG结构的发展状况,在通常微波电路的基础上,采用光子带隙结构,利用其频率选择特性,可构造出新概念下的无源器件:滤波器或定向耦合器,也可用于改善已有器件的特性(如放大器)或用于电磁兼容中。
短句来源
    Periodically reactance-loaded layered dielectric structures are widely used in the design of radomes and other frequency selective structures.
    周期性电抗加载介质结构具有较强的频率选择特性,可用来设计低通、高通、带通、带阻结构,从而被广泛应用于雷达罩设计中。
短句来源
    The numerical results illustrate the fractal characteristics and frequency selectivities.
    其数值结果表明,它们均具有明显的分形特征和频率选择特性.
短句来源
    The infinite impulse response filter can get very good frequency character of choice with a little of number.
    IIR滤波器可以用较少的阶数获得很高的频率选择特性;
短句来源
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  frequency selectivity
The measure for uncertainty is a product of two factors evaluating the frequency selectivity in comparison with the ideal filter and the effective length of the filter in the digital domain, respectively.
      
In the aforementioned frequency range, a frequency selectivity (Q10 of about 10) was revealed by the direct forward masking method.
      
The EAPB could be measured up to a frequency of 190 kHz, but outside this high-resolution region (outside the ultrasonic "fovea"), the frequency selectivity was weak.
      
Increasing the amplitude of the modulation signal results in a loss of the frequency selectivity and a saturation of the gain.
      
Frequency Selectivity of Neurons of the Primary Auditory Field (A1) and Anterior Auditory Field (AAF) in the Auditory Cortex of
      
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Serious frabrication difficulties in producing microminiaturized inductances with therequired parameters have inspired considerable research effort directed towards obtaining fre-quency-selective Characteristics by alternative means. In general the effort has been made intwo main dierctions: attempts to discover physical phenomena in materials and devices whichcould be used for frequency selection; attempts to devise circuits which could perform thisfunction using only active devices, resistors and capacitors....

Serious frabrication difficulties in producing microminiaturized inductances with therequired parameters have inspired considerable research effort directed towards obtaining fre-quency-selective Characteristics by alternative means. In general the effort has been made intwo main dierctions: attempts to discover physical phenomena in materials and devices whichcould be used for frequency selection; attempts to devise circuits which could perform thisfunction using only active devices, resistors and capacitors.

制作给定参数的微型化电感有很大的加工困难,从而迫使人们进行了大量的旨在用替代法获得频率选择特性的研究。努力方向有两个:试图发现能被用于频率选择的材料和元件的物理现象;试图设计出仅用有源器件、电阻、电容即可完成该功能的电路。

Based on Fresnel-Kirchhoff theory, the electromagnetic scattering from fractal gratings, which have structure on uniform Cantor sets or Siepinski carpet, is discussed. The scattering intensities of 1-dimensional and 2-dimensional fractal grating with different fractal dimension are calculated and their properties on spatial frequency distrubution are then analysed. The numerical results illustrate the fractal characteristics and frequency selectivities.

本文根据菲涅尔-基尔霍夫理论,研究了均匀Cantor集分形和Sierpinski“地毯”(carpet)分布光栅结构的电磁(光)散射,计算了一维和二维分形光栅散射的强度分布,分析了它们的空间频率分布特性.其数值结果表明,它们均具有明显的分形特征和频率选择特性.

In this paper the scattering characteristics of dielectric periodic structures by an oblique incidence are analyzed by a method which combines the multimode network approach with rigorous mode matching method. The dependence of frequency selective characteristics of the 3-D frequency selective surface(FSS) structures on frequency and angle of the incident wave and the structure parameters is quantitatively studied. Therefore, some guidelines for design and application of the 3-D FSS structures are given.

该文采用多模网络与严格模匹配相结合的方法分析了介质周期结构在电磁波斜入射情况下的散射特性。定量地分析了这种三维频率选择表面结构的频率选择特性随入射波的频率、入射角度、周期层和均匀层的厚度与介电常数等结构参数的变化关系,从而为三维介质频率选择表面的设计和应用提供了依据。

 
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