A filter whose transfer function is matched with the frequency spectrum function of input signal. 其传递函数与输入信号的频谱函数相匹配的一种滤波器。
The RBF neural network based on the Kalman filter algorithm and biradial transfer function 基于卡尔曼滤波算法和双径向转移函数的RBF型神经网络
In Ref. [ 1] it is shown that in the hyperstable adaptive recursive filter ( HARF) strictly positive realness ( SPR) of a transfer function must be satisfied to guarantee convergence for all possible input sequence. 文献[1]指出,为了保证超稳定自适应递归滤波器(HARF)的收敛性,传输函数必须满足严格正实(SPR)条件。
Evaluation and Optimization of Wiener Filter Using Modulation Transfer Function 用调制传递函数评价和优化维纳滤波器
When the effect of the sampled filter is eliminated, frequency transfer function is estimated. 去掉采样滤波器的影响,即可得频率传递函数。
A modified Wiener filter ( WF) model was proposed in which the reference term of WF ′ s transfer function was synthesized using the mean of training images. So the modified WF is capable of discerning rotation distortion. 提出一种改进的维纳滤波器(WF)模型,用训练图像的均值合成维纳滤波传递函数中的参考函数,使WF具有了旋转不变识别的能力。
In order to design a more perfect optical low pass filter ( OLPF), this paper employs analytical method of optical transfer function to different structure of OLPF on base of the analysis of the optical characteristic of birefringent crystal and presents the amplitude frequency response characteristics of OLPF. 为了设计一个较为理想的光学低通滤波器(OLPF),在分析双折射晶体的光学特性基础上,运用光学传递函数方法对各种结构的OLPF进行分析,给出了各种结构的幅频特性曲线。
This paper presents the principle and design method for digital filter with trans-form matrix in the Z-plane when transfer function of lowpass digital filter is given. 说明了用矩阵变换的方法在Z平面内把已知低通数字滤波器直接变换成所需要的各种数字滤波器的原理和方法。
Taking Butterworth filter as an example, this article presents a method of CAD for transfer function of analog and digital filter, and gives the block diagram, the designing examples, and results. 本文以布特沃思型滤波器为例,提出了统一设计模拟和数字(IIR)滤波器传递函数的CAD方法,并给出了程序设计框图、设计举例和结果。
Based on the scattering parameter representation of the generalized N-port adaptor, the frequency domain equation of the filter is first established. Then, the complex interpolation and the Discrete Fourier Transform technique are utilized to find the transfer function of the filter. 该方法根据一般化N-端口适配器的散射矩阵建立滤波器的频域方程,然后利用复数插值和离散富里叶变换技术求得滤波器的传递函数。
Based on the filter theory of imaging processes and the deduced mathematics model of the image tube's dynamic transfer function, the dynamic imaging processes of an image tube are simulated numerically. The simulated results of dynamic imaging processes are given in images. 基于成像过程的滤波理论和像管动态传递函数数学模型,编制了像管动态成像过程的计算机数字模拟仿真程序,以成像方式给出了像管动态成像过程的计算机模拟仿真结果。
The structures of the biquadratic filter and the Z transfer function are given. 给出了能够实现的结构及对应的Z传递函数。
Based on the theoretical analysis of the properties of reverberation and dispersion, an indirect recovery method which combines Fourier filter with complex cepstrum on the basis of inaccurate transfer function is proposed. 本文对制约混响系统源波形间接恢复的主要动力学特性&混响与消散进行了深入的理论分析和探讨,提出了基于非精确传递函数以最佳傅里叶滤波与复倒谱相结合的激励源波形间接恢复方法。
This paper introduces a special kind of high-pass filter for the ultralow frequeney systems used in the controller for ship stabilizer. The transfer function and the important points of the design are analysed and deduced. 本文介绍了一种可用于船舶减摇控制之类超低频信号系统的高通滤波器,并分析推导了这种滤波器的传递函数及设计要点。
According to the theory of linear filter and imaging characteristics of the whole optoelectronic imaging system are calculated and analyzed with the transfer function theory. 模拟像管的动态成像过程.根据线性滤波理论和传递函数理论计算分析光电成像系统整体的成像特性。
Introduces the frequency-domain analytical means of template operation on image process, for example average value filter and edge enhancement. It illustrates the means of applying optical transfer function to analyse the filter characteristic of template. 以均值滤波、边缘增强为例介绍了图像处理中模板运算的频域分析方法,说明如何运用模板的传递函数来分析模板的滤波特性。
Sensitivity Analysis of the Passive Power Filter Current Transfer Function to Frequency 无源电力滤波器电流传递函数对频率的灵敏度分析
In order to study frequency of power system to affect upon passive power filter, A novel method based on the accompanied network to analyze sensitivities of current transfer function and its modulus to the frequency of power system is proposed. 为了分析电网频率摄动对无源电力滤波器工作特性的影响,我们提出了基于伴随网络法对电流传递函数对电网频率及其模值进行了灵敏度分析的新方法。
In this paper an improved solution to the design of Cascaded-Integrator-Comb ( CIC) filter is proposed, in which the overall transfer function is factorized to recursive and non-recursive parts. The cascade factors of two parts can be adjusted independently. 该文将传统的CIC(CascadedIntegratorComb)滤波器传递函数分解为递归和非递归部分,可独立调整两者的级联因子;
A novel configuration of fully differential continuous time current mode CMOS OTA C all pole low pass filter is proposed based on direct simulation of the current mode transfer function ( SFG). 应用信号流图法对电流系统传递函数直接模拟,提出了一种新颖的差分式连续时间电流模式CMOS跨导-电容低通滤波器的实现方案。
The filter design procedure is: by giving functional approximation firstly, the general transfer function is obtained, then we establish suitable circuit to realize the transfer function using circuit components. 滤波器的设计过程首先由函数的逼近得出一般传递函数,再用相应电路元件搭建电路实现传递函数。
Finally, a lowpass LDI ellipse filter is designed based on this method and its transfer function is obtained by MATLAB/ SIMULINK, the whole design process is predigested successfully. 以此方法设计出一个低通LDI数字椭圆滤波器,并利用matlabsimulink导出滤波器的传递函数,大大简化了整个设计过程。
According to choose the construct and the element parameter of passive network, the new type standard second-order current-mode filter, i. e. lowpass, highpass, bandpass, band eliminate, allpass and their transfer function is obtained. 然后,通过适当选择无源网络的结构以及元件,构成新型电流型标准二阶滤波器,即低通、高通、带通、带阻和全通滤波器及其传递函数。
According to the viewpoint of optic Fourierism, the optic imaging system is a low-pass filter, because the effect of optic diffraction, the transfer function turns to zero when above a limit frequency which is determined by diffract limit. 按照傅里叶光学的观点,光学成像系统是一个低通滤波器,由于受到光学衍射的影响,其传递函数在由衍射极限分辨率所决定的某个截止频率以上值均为零。
In this thesis, we transplant the method of digital filter to the optical thin film and use the method of digital filter to design the optical thin film, obtain the structure parameters of optical thin film by the transfer function of the needed spectrum. 本文将数字滤波器的设计方法移植到光学薄膜的设计中。采用数字滤波器设计方法设计光学薄膜,由所需频谱对应的传递函数得到光学薄膜的结构参数。
In the design of digital filter, numerical feature of the transfer function, such as zero point and pole point, directly show the spectrum characteristics. 在数字滤波器设计过程中传递函数的数值特征,如零极点,直接反映了频谱特性。
Adaptive filter can be set according to certain criteria in advance automatically adjust its own transfer function to achieve the required output. 自适应滤波器可以按某种事先设定的准则自动调节其本身的传递函数以达到所需要的输出。
A matrix inequality approach is proposed to design an unbiased H_ ∞ filter, so that the filtering error system is asymptotically stable and the H_ ∞ norm of the transfer function of error system is less than a positive scalar γ. 基于矩阵不等式设计了无偏H∞滤波器,使得滤波误差系统是渐近稳定的,同时满足其传递函数的H∞范数小于某一给定的正数γ。
A set of lattice filter structures: It is shown that the five elementary lattices have different characteristics even their expressions of transfer function are similar. 格型滤波器结构群:研究表明,五种基本格型单元结构虽然具有相似的表达式但它们具有各自的性能特征。
By combining the PCF with a bandpass filter, a near step-like power transfer function with no pulse distortion is achieved. 利用PCF和带宽滤波器,获得了近似阶跃状的功率传输函数和没有发生形变的再生脉冲。