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滤波器     
相关语句
  filter
    DESIGN ANALYSIS FOR AN ORTHOGONAL-LOOP-COUPLING YIG TUNABLE FILTER
    正交环耦合YIG电调滤波器设计分析
短句来源
    BASIC STUDY ON SPATIAL FILTER USED IN Nd-GLASS HIGH POWER LASER SYSTEM
    钕玻璃高功率激光系统中的空间滤波器的基本研究
短句来源
    SPACE-INVARIANT AND ROTATION-INVARIANT IN A GIVEN ANGLE RANGE PATTERN RECOGNITION AND THEIR FILTER DESIGN
    空间平移不变和角度受限下转动不变的特征识别与滤波器的设计
短句来源
    Focusing of multi-mode laser beam by a laser focusing system with the spatial filter
    带空间滤波器的激光聚焦系统对多模激光的聚焦
短句来源
    FREQUENCY ANALYSIS OF IC PHOTOMASK AND DIRECTIONAL SPATIAL FILTER
    IC掩模的频谱分析及方向性空间滤波器
短句来源
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  filters
    Fabry-Perot Filters and Fiber Grating Filters
    法布里—珀罗滤波器和光纤光栅滤波器
短句来源
    Adjustable Optical Spatial Filters
    可变式光学空间滤波器
短句来源
    Distortion of windows of vacuum spatial filters
    真空空间滤波器的窗口畸变
短句来源
    DESIGN THEORY AND CAD OF MILLIMETER-WAVEGUIDE E-PLANE METAL INSERT FILTERS
    毫米波全金属插入E-平面波导滤波器的设计理论与CAD
短句来源
    Experimental study of recording binary phase-only filters using liquid crystal light valve
    液晶光阀记录二元纯位相滤波器的实验研究
短句来源
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  wave filter
    Optical Modulation Characteristics in ZnS/ZnSe Stratified Grating Wave Filter
    ZnS/ZnSe迭层光栅滤波器的光调制特性
短句来源
    Properties of volume holographic grating such as diffraction efficiency, angle and wavelength selectivity are discussed in detail based on coupled-mode theory. The fundamental principle that photorefractive volume grating is used as a wave filter for WDM is illustrated.
    利用耦合波理论详细讨论了体全息光栅的衍射效率及角度选择性、波长选择性等衍射属性,阐述光折变多重体全息光栅作为波长滤波器实现波长解复用的基本原理。
短句来源
  the filter
    The filter has a center frequency of 2022 MHz with a 2.5% bandwidth, with area of 25×12 mm.
    超导滤波器的尺寸为25×12mmLaAlO3基片,中心频率2.022GHz,相对带宽为2.4%.
短句来源
    The filter with 0.4 nm bandwidth was schemed out under the condition of the length ratio of second order cascaded PSFBG at 1:2:1.
    设计出二级相移光纤光栅在长度比1∶2∶1,相移角均为π的条件下可得到0.4 nm带宽的滤波器.
短句来源
    The filter control of perturbation of XPM andnoise of ASE are also studied.
    研究了WDM系统中滤波器对XPM扰动和ASE噪声扰动的控制作用。
短句来源
    At last in this chapter, the timing jitter of filter control in WDM system is analyzed by varitional method for the first time, the effect of filter control in DMS and common soliton WDM system is compared, which results can be used to design the filter control WDM DMS system.
    最后首次由变分法对多信道WDM系统中的滤波器对定时抖动的控制进行了分析,对DMS和普通孤子WDM系统中滤波器的控制作用进行了比较,为滤波控制WDM色散管理孤子系统设计提供理论依据。
短句来源
    the filter methods both in spatial field and in frequency field are discussed, the results are compared each other and the parameters of two type filters are chosen .
    在对莫尔条纹图滤波的过程中,应用空域滤波和频域滤波两种方法,分别进行了滤波器的参数选择,并对两种滤波方法的效果进行了比较。
短句来源
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  filter
We characterize the wavelet multipliers, as well as the scaling function multipliers and low pass filter multipliers.
      
For compactly supported gm, n (FIR filter banks) we prove an exponential rate of convergence and derive explicit expressions for the involved constants.
      
This, in turn, is used for designing local orthogonal bases obtained by unitary transformations of a single prototype filter.
      
This in turn, is used for designing local orthogonal bases obtained by unitary transformations of a single prototype filter.
      
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.
      
更多          
  filters
The main purpose of this paper is to give a procedure to "mollify" the low-pass filters of a large number of Minimally Supported Frequency (MSF) wavelets so that the smoother functions obtained in this way are also low-pass filters for an MRA.
      
This phenomena is related to the invariant cycles under the transformation We also give a characterization of all low-pass filters for MSF wavelets.
      
The main purpose of this paper is to give a procedure to "mollify" the low-pass filters of a large number ofMinimally Supported Frequency (MSF) wavelets so that the smoother functions obtained in this way are also low-pass filters for an MRA.
      
We also give a characterization of all low-pass filters for MSF wavelets.
      
Unitary mappings between multiresolution analyses of L2 (R) and a parametrization of low-pass filters
      
更多          
  wave filter
Robust autopilot with wave filter for ship steering
      
A ship's dynamic model with wave disturbances was built and a wave filter was designed by means of an extended states observer (ESO).
      
According to ZBJ65015-89 standard about noise level testing method of woodworking tool, the noise testing for MJ90# and MJC1125 precision panel saws was conducted by using model ND2 precision sound-level apparatus and double frequency wave filter.
      
Our data on the spectral absorbance of the lens and visual pigment of these fishes suggest that the lens pigmentation acts as a short-wave filter to improve acuity of the visual system.
      
Pipelining the unconstrained three-port wave filter adaptor at the bit level
      
更多          
  the filter
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.
      
The uncertainty product of such minimizing filters approaches the unrestricted infimum as the filter length increases.
      
We conclude that the filter-capacitance of the rectifier can be designed.
      
Furthermore, the filter design problem is converted into a convex optimization problem with linear matrix inequality (LMI) constraints.
      
The filter was operated in the downflow manner and the results showed that the removing rate of NH4+-N was related to the influent concentration of NH4+-N.
      
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