当保持输入信号的幅度不变，改变频率使输出信号降至最大值的0.707倍，即用频响特性来表述即为-3dB点处即为截止频率，它是用来说明频率特性指标的一个特殊频率。
毕业论文天下网_Butterworth滤波器设计_通信工程毕业论文格式范文 关键词：有源滤波器，截止频率，传递函数 [gap=1148]Keywords: APF, Cut-off frequency, Transfer Function
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... 放大极限频率 amplification limit frequency 截止频率,极限频率 limiting frequency 吸收极限频率,吸收截止频率 absorption limiting frequency ...
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上限截止频率 [物] upper cut-off frequency ; highter cut-off frequency
理论截止频率 [电] theoretical cutoff frequency ; cut-off frequency theoretical
低通滤波器截止频率 lp filter cutoff
高通滤波器截止频率 hp filter cutof
负阻截止频率 resistive cut-off frequency
额定截止频率 [电] nominal cut-off frequency
滤波器截止频率 filter cutoff frequency ; Filter Cutoff
下限截止频率 lower-cut-off frequency ; lower limiting frequency
截止频率与带宽 Cutoff frequency and bandwidth
The maximum cut-off frequency and equivalent diameters under the different filling factors of dual three sub-apertures for model are given by calculating.
通过数值计算给出复合三子镜Ⅰ型结构的最大截止频率和不同填充因子的等效直径。
参考来源 - 期刊学术社区Thirdly, giving the conception about All Phase shift filter based on the traditional frequency sample filter, it has the virtues of the traditional frequency sample filter, and can conquer the disadvantage that the cut-off frequence is forward.
第三,在介绍传统频率抽样滤波器的基础上,得到了全相位移位滤波器的概念。 它具有传统频率抽样滤波器的优点,同时还能够克服其截止频率不易控制的缺点。
参考来源 - 全相位方法在频谱分析及数字滤波上的应用By analyzing the impact of probe radius on close condition, an idea is put forward that minishing taper radius can enhance close frequency to make high rank light pass.
通过分析探针半径对截止条件的影响,提出减小锥形半径可以使截止频率更高从而使高阶光通过。
参考来源 - 基于倏逝波光纤生物传感器探针的研制A low-pass filter with cut-off frequency f_c is used to process the output signals of electromagnetic flowmeter with square wave excitation,which only removes noise whose frequency is higher than f_c,but noise whose frequency is lower than f_c is still existed.
采用截止频率为F的低通滤波器对方波励磁的电磁流量计输出信号进行处理,只能去除频率高于F的噪声,频率低于F的噪声仍然存在。
参考来源 - 基于小波变换的电磁流量计信号的去噪研究The improved procedures adding digital filter function can filtering the designated cutoff frequency , and we validate the result briefly.
反演过程中添加数字滤波功能,可输入截止频率,对输入信号进行低通滤波,并对结果进行初步验证。
参考来源 - SQUID无损检测中的相关问题研究·2,447,543篇论文数据，部分数据来源于NoteExpress
极光嘶声则有明显的上截止频率和下截止频率。
As to auroral hiss, there are upper and lower frequency cut-offs.
采用模匹配方法分析了月形波导和加片圆波导的截止频率。
The Lunar waveguides and vained circular waveguides are analyzed by using the mode matching method.
它能直观的测试一个系统的幅频特性、相频特性和截止频率。
It can measure the magnitude characteristic, phase characteristic and limiting frequency of a system.
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