The loads and the distribution of stress amplitude frequency are obtained by cycle count and reliable data for fatigue design are provided by probability density function fit.
用循环计数法求出载荷及应力幅频率分布，用概率密度函数拟合，为疲劳设计提供可靠性高的数据资。
The coding used to impress information on the wave can be a function of the frequency (the number of waves or cycles per second) or amplitude of the waves or cycles.
对载波中的信息进行压缩的编码方式可以是载波或周期的频率调制或振幅调制。
The frequency response function was a function of stiffness and damping when a rotor vibrated, so a proper adjustment of stiffness and damping could reduce the vibration amplitude.
转子振动时其频响函数是其刚度和阻尼的函数，调节合适的刚度和阻尼，可以抑制转子振动。
The electromagnetic vibrational machine which has function of automatic frequency follow-up and stable amplitude was studied.
本文对具有自动频率跟踪和反馈稳幅功能的电磁振动机械进行了研究。
A window function which has a flat top in frequency domain is designed to correct the amplitude error caused by Picket_Fence effect.
并从减小栅栏效应带来的幅值估计误差的角度，设计了一个具有平顶窗谱的窗函数，分析对比了它和矩形窗函数的性能差异。
The transmission function and the amplitude-frequency characteristic of the filter is deeply analyzed. This filter guarantees the system precision as the components of the BPF were picked with choice.
带通滤波电路是本系统消除噪声的关键部分，论文深入分析了带通滤波器的传输函数和幅频特性。
Compared with the amplitude-frequency characteristic of the window functions often used at present, its property has an advantage over the rising-cosine function improved.
与目前常用的几种窗函数的频率特性相比较，其性能优于改进的升余弦窗函数。
The traditional method for amplitude-phase frequency characteristic calculation is first to solve the numerator polynomials and denominator polynomials of a transfer function.
频域计算的传统方法是先求出传递函数的分子多项式和分母多项式。
The system stability is determined by analyzing the amplitude-frequency characteristics of closed-loop transfer function.
通过分析闭环传递函数的幅频特性，对系统的稳定性进行了判定。
It completes the system control software and FPGA control logic design, and achieves the data-processing function of amplitude and phase-frequency testing, parameter storage, calculation of Q-value.
完成了系统控制软件和FPGA控制逻辑设计，实现了幅频和相频测试，参数存储，Q值计算等数据处理功能。
It completes the system control software and FPGA control logic design, and achieves the data-processing function of amplitude and phase-frequency testing, parameter storage, calculation of Q-value.
完成了系统控制软件和FPGA控制逻辑设计，实现了幅频和相频测试，参数存储，Q值计算等数据处理功能。
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