然而，DYNASDSP的不对称滤波器响应往往意味着的T- 4970将很难锁定到一个以上的DX信号或信号之间的地方(第)。
However, the DYNAS DSP asymmetrical filter response often means the T-4970 will have difficulty locking on to a DX signal above or in between the local signal (s).
该光瞳滤波器由两个平行偏光镜，一个电光晶体与一个径向对称双折射晶体组成。
It consists of two parallel polarizers, an electro-optical crystal and a birefringent crystal with radial symmetry.
提出了一种基于不对称级联多电平逆变器(ACMI)的串联混合有源电力滤波器(SHAPF)及其控制策略。
This paper presents a series hybrid active power filter (SHAPF) based on asymmetry cascade multilevel inverter (ACMI) and its control strategy.
本文介绍了不对称和对称带通fir滤波器。
In this paper, the nonsymmetrical and symmetrical bandpass FIR filters are presented.
另外，三相四线制有源电力滤波器能有效地抑制零线电流，并能有效地解决系统的不对称问题。
Moreover, three-phase four-wire active filters can suppress zero line current, and solve symmetric problem of system effectively.
本文阐述了不对称半桥逆变器的工作原理，讨论了软开关的实现条件，给出了谐振滤波器的设计方法。
The operational principle of the inverter is analyzed and the ZVS achievement condition is discussed. The design method for the resonant filter is provided.
并针对不同的滤波器长度N和频率向量的设置（传统对称或偶对称），设计出了4种全相位半带滤波器。
Moreover, corresponding to different filter length N and frequency vector setting modes(traditional symmetry or even symmetry), 4 types of all-phase half-band filters were designed.
根据三角窗函数的对称性和三角滤波器的递归性，给出了高斯滤波器的实用逼近算法。
According to the symmetry of the triangle window function and the recurrence relations of triangle filter, the practical algorithm of the approximated Gaussian filter is obtained.
并进一步构造了与尺度函数对称点一致、系数长度不超过8的所有对称（反对称） 小波滤波器组。
Moreover, all symmetric and antisymmetric wavelets, which have same symmetric point as the scaling function and the length of their filters are no more than 8, are also given.
采用左右对称的输入输出耦合结构便于调整滤波器的传输零点，从而改善带外特性。
Tapped coupling can be used to change the transmission zeros so that the performance of filter is improved.
具有杂波抑制特性的带通滤波器不仅可以实现这个功能，同时由于抑制了杂波还可以提高带通滤波器的通带对称性以及高端阻带的衰减特性。
The bandpass filter that has spurious suppression characteristics can solve this problem and it has excellent bandpass symmetry and stopband attenuation characteristics at high frequency.
电力有源滤波器能动态补偿不对称三相电路的畸变电流、负序电流分量。
Active power filter can compensate current components which include distortion and negative sequence current components when it is used in unbalanced three-phase circuit.
电力有源滤波器能动态补偿不对称三相电路的畸变电流、负序电流分量。
Active power filter can compensate current components which include distortion and negative sequence current components when it is used in unbalanced three-phase circuit.
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