利用差分电路,可以有效地减小鉴相器相位失真的影响。
A differential circuit can be used to minimize the effects of detector phase distortion.
利用该方法可以使系统具有零相位特性,实现脑电信号的零相位失真滤波。
By using these methods, the system can be of the feature of zero phase error, and the filtering of EEG signals with zero phase error can be realized.
然而,如果相位的变化是非线性的,那么对非正弦信号会产生严重的相位失真。
However, if the phase change is non-linear, then the non-sinusoidal signals will have a serious phase distortion.
其好处是减少了的相位延时,从而减低了扬声器的相位失真,改良了扬声器的瞬态响应。
Its benefits is to reduce the phase delay, thus reducing the phase distortion speaker, improved transient response of the speaker.
简述了MD 1721型矢量示波器的工作原理和自检方法,微分增益失真dg和微分相位失真dp的测量方法。
This article simply introduces the work principles self-checking methods differential gain distortion DG differential phasic distortion DP of MD1721 Model Vector Oscollograph.
为了补偿数字电视发射机的频谱畸变与相位失真,以得到最佳的VSB频谱特性,可以在调制器中加入预均衡网络对频谱进行预畸变。
To minimize the frequency and phase distortion in a DTV transmitter in order to achieve best VSB frequency performance, a pre equalizer can be inserted into the modulator.
该群时延均衡器能与不同类型超导微带滤波器级联,实现相位均衡,减小相位失真,改善接收机前端信号群时延特性,提高通信质量。
This group-delay equalizer can follow any type of HTS microstrip filter in order to reduce phase distortion, enhance group-delay performance, and improve communication quality.
相位变化将造成失真。
基于傅里叶-梅林变换特性和相位相关性,提出了一种新的抗几何失真数字水印算法。
A new watermarking detecting algorithm which resists geometric distortion is proposed, based on Fourier-Mellin transform and phase correlation features.
文中简要地介绍了这种系列测试设备中的相位测试仪、阻尼测试仪、失真度测试仪及磁通量测试仪。
Several meters of the set, such as phase detector, damping tester, distortion meter and magnetic-flux detector, are briefly introduced in the paper.
交调失真的不对称性描述了功率放大器的记忆特性,但是与幅度相比,交调分量的相位特性很难测量。
Asymmetries of intermodulation distortions describe the memory effect of power amplifiers (PAs), but it is hard to measure asymmetries of the phase of the IM components.
利用椭圆函数滤波器较陡的过渡带特性设计前向和后向滤波器,消除由于IIR滤波器造成滤波后的数据相位非线性失真。
A back and forward filter with steeper transitional band was designed of ellipse function. It can remove nonlinear phase distortion caused by IIR filter.
粗糙面反射光的波前失真由相位共轭修复。
The distorted wave front of the light diffusely reflected from the rough surface is reconstructed by phase conjugation.
本文从线性系统分析的角度定义了音响系统的相位和群延迟失真,并讨论了所定义的群延迟物理意义。
This paper defines phase and group delay distortion of audio system based on point view of linear system analysis and the physical meanings of group delay is discussed.
L3特有的线性相位交点可以保证在常用波段之间不产生失真,而交点是由用户选定的。
The L3 features a linear phase crossover which doesn't introduce phase distortion between the frequency bands. The crossover points are selectable by the user.
在实际的相位生成载波(简称PGC)解调输出中,直流漂移会使解调结果产生失真。
In the practical phase generated carrier (PGC) demodulation outputs, the direct current (DC) drift can distort the demodulation results.
合适的初始脉冲时延和初始脉冲啁啾有利于频域相位共轭技术对交叉相位调制所致信号失真的抑制。
Suitable initial time delay and pulse chirp of pulses can improve the suppression and compensation for the distortion.
随后从脉冲信号的幅度谱和相位谱两个方面研究了脉冲波形失真情况。
Then it studied the pulse waveform distortion from two aspects of the amplitude spectrum and phase spectrum.
与步进频率信号在高速目标下成像失真相比,相位编码步进频率信号的多普勒性能有很明显改善。
Compared with the range profile distortion produced by SF signal in the presence of high moving targets, PCSF signal Doppler performance is obviously improved.
相位相关作为一种图像匹配技术对噪声有较高的容忍程度,检测结果与照度无关,受几何失真影响小。但该方法对旋转变化非常敏感。
Phase correlation algorithm as a kind of image matching method has many advantages such as insensitive to noise, unrelated to illumination of target, immune to geometric distortion.
相位相关作为一种图像匹配技术对噪声有较高的容忍程度,检测结果与照度无关,受几何失真影响小。但该方法对旋转变化非常敏感。
Phase correlation algorithm as a kind of image matching method has many advantages such as insensitive to noise, unrelated to illumination of target, immune to geometric distortion.
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