学科:地球物理勘探 词目:纯相位滤波器 英文:pure phase filter 释文:当信号通过这个滤波器后,仅改变输入信号的相位谱而不改变其振幅谱。
相比于其他相关滤波器,如逆滤波器(Inverse Filter)和纯相位滤波器(Phase-only Filter),他们具有类似的性质,统称为分数幂滤波器(Fractional Power Filter),匹配滤波器能够使输出信号抽样值的信噪比达到最大,而逆滤...
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利用改进的磁通积分算法,克服了纯积分器直流漂移和初始值问题,消除了一阶低通滤波器的幅值和相位偏差。
The DC drift and initial problems of pure integrator were overcome, and the magnitude and the phase error of one-order low pass filter eliminated by using a novel integration method.
根据空间光调制器的相位调制作用,提出了一种灰阶纯位相匹配滤波器编码方法。
A kind of coding method of gray-scale phase-only matched filter according to the phase modulation property of the spatial light modulator has presented.
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