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- This is equivalent to requiring that the Nyquist frequency be strictly greater than the bandwidth or the signal. 一个频率正好是采样频率一半的正弦信号，通常会混叠成另一相同频率的正弦信号，但它的相位和幅度改变了。
- Genotypic frequency was much higher in Amy 1 AB . Amy- 1 AB型频率很高。
- But there will be signal cancellation in the presence of coherent interference. 一旦出现同调干扰将会有信号抵销的现象。
- From Wiener solution the average canceling-ratio is derived when the interference is a sinusoidal AM signal. 从 Wiener 解出发,以单频调幅干扰为例子,导出了平均对消比之概念。
- How may copies of each output frequency are required? 需要多少个输出?
- Based on the Parseval energy integral equation, energy values included in vibration signal of corresponding frequency are calculated. 依据Parseval能量积分等式 ,计算出各频率对应振动响应的能量值。
- All the C3 allotype was C3S.The gene frequency was 1. 而且所有的第三补体异型均为C3S，而此基因频率为1。
- Finally, the designing correctness and feasibility of the receiver is proved by the simulation of AM signal demodulation with Matlab. 最后通过Matlab对调幅(AM)信号的解调仿真验证了该接收机设计的正确性和可行性。
- Wavelength and frequency are, of course, related reciprocally. 波长和频率当然是相反的关系。
- Common low impedance connection points are signal low and guard. 常见的低阻抗连接点为信号低电平和保护线路。
- Also,the software realization of demodulation of AM signal is performed using powerful Advanced Analysis function Library provided by LabWindows/CVI. 并在LabWindows/CVI软件平台下利用其提供的功能强大的信号分析函数库采用 3种不同方法实现调幅信号解调。
- Stride length and frequency are the most important elements of sprinting. 步长和步频是短跑最重要的因素。
- Look, the traffic cop are signalling. 瞧，交通警察在发信号呢。
- She was signalling wildly, waving her arms. 她发狂地挥动手臂发信号。
- The direction of the low frequency current with maximum frequency was also WSW. 低频流出现频率最多的方向和潮流基本一致。
- The antigen frequency and gene frequency were calculated by direct counting. 用直接计数法进行抗原频率和基因频率计算。
- She was signaling wildly, waving her arms. 她奋力挥臂发信号。
- F2 frequency was highest in normal control group and lowest in IAr group. 3组 F2值均有明显差异 ;按值大小分别为 N>NAr>IAr.
- Five back-to-back PMIs are signalling contraction. 5个相互映衬的制造业采购经理指数（PMI）都在缩小。
- If the frequencies are low, this approach cannot be used. 若频率很低时,这种方法就不能使用。
