该滤波器在基频处的幅值无衰减,相位无延时,能将2次以上的谐波全部滤掉。
The filter has no fundamental frequency decay and phase delay, and all harmonics above2nd order are filtered.
由于锚固体系中有不同大小和程度的缺陷,声波在传播过程中将产生能量衰减、相位突变及频散现象。
The existence of various lacunas in bolt bonding system will cause the acoustic wave energy attenuation, phase aberration and frequency dispersion.
通过实验获得了声相位图与声幅度图,并通过数字图像处理获得了相应的速度图与衰减图。
After processing the amplitude image and phase image which was come from experiment we obtain the distribution of the velocity and attenuation.
为了解决这一矛盾,在尘埃等离子体理论基础上,导出了弱电离尘埃等离子体的微波衰减常数和相位常数计算公式。
In order to solve the problem, the calculation formula of microwave attenuation constant and phase constant of weakly ionized dusty plasma was deduce.
核磁共振测量中,由于不均匀磁场相位滞后引起的驰豫或衰减。
In a nuclear magnetic resonance measurement, the decay, or relaxation, caused by dephasing in an inhomogeneous magnetic field.
同态处理方法还可以同时估计单一波模式的衰减、幅度和初相位;
While homomorphic processing can also be used to calculate attenuation, amplitude and phase of one mode simultaneously.
试验结果表明,增加了线性相位这一重要性质的同时,分析和综合原型滤波器在阻带衰减、通带平坦性以及系统混叠等性能方面仅有很小的损失。
And the examples verified that the analysis and synthesis prototype filters with the linear phase constrains show a little loss in perfanmence compare with those without this property.
本发明通过分析信号经过衰减后的相位偏移,在信号进行衰减的衰减量变化时,能够控制所述信号的相位偏移。
The invention can control the phase offset of the signals when the attenuation amounts of attenuation of the signals vary through analyzing the phase offset of the signals after attenuation.
结果表明:输能装置和切断衰减器的不连续性是造成幅相一致性行波管相位不可补偿的重要因素之一。
The analysis indicates that the mismatches can lead to the possibility that the phase of phase coincidence TWT can't be compensated. It is necessary to measure the…
结果表明:输能装置和切断衰减器的不连续性是造成幅相一致性行波管相位不可补偿的重要因素之一。
The analysis indicates that the mismatches can lead to the possibility that the phase of phase coincidence TWT can't be compensated. It is necessary to measure the…
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