According to the Nyquist Theorem, the sampling rate must be more than twice the maximum frequency component of the signal being measured.
根据Nyquist定理，采样率必须是被测信号最高频率分量的两倍以上。
The line noise is a primary low frequency component of self-noise in submarines.
线谱噪声主要集中在自噪声的低频段。
The linear time-invariant filter can' t improve SNR of single frequency component.
线性时不变滤波不能提高单一频率分量信噪比。
The high frequency component would be absorbed or reflected by the low resistance layer in the crust.
这些电磁波的高频部分将被地壳低电阻层吸收和反射。
Using LC tank circuit as the load of modified XOR, the frequency component desired can be extracted out.
改进的异或门中，利用LC谐振回路作为异或门的负载，提取出希望得到的频率分量。
Local artifical boundary condition in time domain is based on concept of travelingwave. It cannot simulate zero-frequency component(evanescent motion) generally.
时域局部人工边界是以行波概念为基础的，原则上不能用于模拟零频分量（消减运动）。
Experimental results show the algorithm is invisible and robust to certain common distortions. Thus the lowest frequency component is not prohibition for watermarking.
实验结果表明，该算法具有不可见性，对于通常的图像失真具有较好的鲁棒性，说明最低频成分并不是水印的禁区。
This algorithm can adaptively optimize the cost function and reduce the suppression of high frequency component of PET image by adaptively updating linear slope of the RP.
该算法通过对正则化线性斜率的自适应，更新动态优化代价函数，以降低对PET图像高频成分的抑制。
Several numerical results show that the proposed method is stable and accurate, and it is nearly not sensitive to the high -, low-frequency component of the incidence wave.
几个典型数值算例表明，利用本文方法求解时域积分方程的结果具有非常好的后时稳定性和精确性，并且对低频成份、高频成份不敏感。
We conclude through our research on the energy spectrum of typical transmitting wave - form that the best wave - form is the one for which the energy of each frequency component is equal.
通过对典型供电波形频谱结构的研究，认为各频率成份能量相等的波形是最佳波形。
This paper introduces the method of analyzing TEOAEs by short time Fourier transform and gives the experiment results of time frequency distribution, then we analyze each frequency component.
本文介绍了用短时傅立叶变换分析瞬态诱发耳声发射方法，并给出了其时频分布的实验结果，分析了其各个频率成份出现的不同时刻及持续时间。
Since heart sounds are generally of low frequency component and very faint, this method, depending on doctor's knowledge and experience, is subjective and sometimes is unreliable and ineffective.
由于心音的频率较低而且非常微弱，医务人员通过听诊器根据自己的知识和经验对心音做出主观分析判断并不一定可靠。
It acts as the LPF, effectively eliminating the high frequency component in the feed-in signal. The groove in the central region working as a loading capacitance in the open end is also discussed.
高频扼流圈是一段未闭合的铜，和其终端等效的边缘电容形成一个低通滤波器，可以有效地滤除馈入信号中的高频成分。
This paper describes a method to extract the low frequency component from rotor startup signal based on empirical mode decomposition, which overcomes the difficulties of traditional filter methods.
针对传统滤波方法处理非平稳信号的不足，提出利用经验模态分解法来处理转子启动信号，通过此方法的自适应滤波特性来提取这类信号中的低频分量。
To adequately preserve the shape of your signal, you should sample at a much higher rate than the Nyquist frequency, generally at least 5 or 10 times the maximum frequency component of your signal.
为充分保证信号的波形不失真，你的采样频率应比Nyquist频率高出许多，通常是你信号最高频率的5到10倍。
The analysis results also indicate rub-impact faults induced by oil-film instability can produce some low-frequency components with small amplitude and oil whip can produce half frequency component;
油膜失稳引起的转定子碰摩故障，会产生一些低频成分，油膜振荡会产生半频成分；
The analysis results also indicate rub-impact faults induced by oil-film instability can produce some low-frequency components with small amplitude and oil whip can produce half frequency component;
油膜失稳引起的转定子碰摩故障，会产生一些低频成分，油膜振荡会产生半频成分；
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