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椭圆滤波器     
相关语句
  elliptic filter
     Nth-order current mode elliptic filter based on MOCCCⅡ-C
     基于MOCCCⅡ-C的n阶电流模式椭圆滤波器
短句来源
     Design and Realization of Digital Elliptic Filter Based on Matlab
     数字椭圆滤波器的Matlab设计与实现
短句来源
     ELLIPTIC FILTER DESIGN ON POCKET CALCULATORS
     利用计算器设计椭圆滤波器
短句来源
     Examples of high order narrow-band bandpass, lowpass and bandstop elliptic filter demonstrate that parallel realization of the new structures reduces 13 dB and 9dB in rounboff noise gain camparing with the parallel tealization of the original structures and the parallel realization of the optimal LSS structures respectively.
     用新结构并联实现高阶窄带椭圆滤波器,比用原结构和最优LSS结构的并联实现分别降低噪声13dB和9dB。
短句来源
     A 9th -order low-pass elliptic filter is attained that its cut - off frequency is 120 MHz; its phase frequency characteristic is good; its passband ripple is less than 0.25 dB;
     得出了截止频率为120MHz的9阶低通椭圆滤波器幅频特性好,通带波纹小于0.25dB,具有快速的衰减速率,在144MHz处衰减为70dB.
短句来源
更多       
  elliptical filter
     Using the sharper elliptical filter designed by programable high speed digital signal processor TMS320C25 rejects the weather radar ground clutter, havereduced the loss of the precipitation echo signals and improved the flexibilityand reliability.
     用过渡特性陡峭的椭圆滤波器来抑制天气雷达地物回波,并用可编程高速数字信号处理器TMS320C25来实现,减小了抑制器的降水回波损失,提高了系统的灵活性和可靠性。
短句来源
  elliptic digital filter
     Especially,the elliptic digital filter is used for simulating reverberation.
     其中,在模拟海洋混响时采用了性能较好的椭圆滤波器
短句来源
  elliptic-integral filter
     According to the buck situation will cause the input current discontinuity, a new improved elliptic-integral filter is added at input end of the APFC.
     由于工作在BUCK状态时输入电流断续,因此一种新型改进后的椭圆滤波器加在了APFC的输入端。
短句来源

 

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  elliptic filter
In conformity with a fifth-orderRLC elliptic filter circuit prototype, it is easy to conceive the correspondingRC active filter circuit.
      
The proposed elliptic filter can be designed by only adding floating capacitor to the corresponding nodes as the all-pole filter counterpart.
      
As examples, a sixth-order band-pass and a sixth-order band-stop elliptic filter transformed from a third-order low-pass are given.
      
The circuit is then used to realize a second-order 4 MHz lowpass filter consuming 530 μW, and a fifth-order 450 kHz lowpass elliptic filter consuming 2.3 mW.
      
A simple proof describes the Chebyshev filter as an elliptic filter in the limit of infinite stopband corner frequency.
      
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  elliptical filter
Other filters, such as the Ormsby filter and the elliptical filter, are also used for ground motion signal processing but are less common.
      
  其他


Staring from the general single amplifier topology,an optimal SAB filter structure is obtained.Taking the gain-sensitivity product and the minimum component spread as two criteria in optimization,the most suitable hybrid-integrated filter using SAB circuit is designed.The circuit presented in this paper is manufactured by the thick film hybrid IC technology and is used as a building block in the sixth order elliptic high pass filter of the telephone system.The performance of this sixth order filter is found...

Staring from the general single amplifier topology,an optimal SAB filter structure is obtained.Taking the gain-sensitivity product and the minimum component spread as two criteria in optimization,the most suitable hybrid-integrated filter using SAB circuit is designed.The circuit presented in this paper is manufactured by the thick film hybrid IC technology and is used as a building block in the sixth order elliptic high pass filter of the telephone system.The performance of this sixth order filter is found to be very satisfactory.

本文从对单运放一般拓扑结构的讨论开始,导得最佳SAB滤波器的结构,然后对此电路根据GS及离散性两个指标进行了优化设计,从而得出SAB混合集成的最佳实际电路.本文中的电路己用厚膜混合集成工艺试制成功并在话路系统的高阶椭圆滤波器的有源实现中得到了应用.实践证明此SAB混合集成滤波节的性能非常优良.

The equalizations of the phase or group delay tesponse of an IIR lovpass filter are traditionally performed by an IIR all-pass filter. Ho-werer, the equalization can also be realized by using an FIR neerly all-pass filter, which may be superior over the IIR one in stability, roundoff noise and possibility of fast realization. Fisst a technique of designing FIR lowpass equalizers is introduced, illustrative examples, then, are give to show the performance of the FIR equalizers.

本文采用FIR近似全通网络与原系统级联,整个系统可以保留原有的幅频响应,且整个系统在通带范围内满足预先要求的相位或群延迟特性。我们首先介绍这种FIR近似全通网络的设计方法,然后根据具体设计实例,主要是均衡椭圆滤波器的相位,讨论FIR近似全通网络的阶数、常数群延迟τ,通带宽度以及幅度误差这些因素与相位误差之间的关系,并将这种近似全通网络与IIR全通相位网络,级联后的整个系统与纯FIR滤波器进行比较。由于FIR不存在稳定性问题,可以利用FFT等高速算法实现,所以比IIR全通网络有优越性。它可以直接应用于数字网络、信道等情况的相位均衡。

In accordance with the desired performance,the paper first works out the circuit and parameters of a passive filter by making use of the data and curves resulting from the approximation theory of passive filters.After applying ths state variables technique to this circuit,the paper finally accomplishes the design of a seven-order ellipse low-pass switched-capacitor filter,composed of switched-capacitor integrators and switched-capacitor adders.A brief analysie of the filter is also given.

本文根据预期指标,借鉴无源滤波器逼近理论所得的结果和所编置的图表得出无源滤波器的电路与参数。然后对电路作状态变量分解,用开关电容积分器及开关电容求和器设计成开关电容七阶低通椭圆滤波器,并作了简明扼要的分析.

 
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