period-spectrum的意思|示意

The detection and parameter estimation of DS signal are studied in this paper. Cyclic period chart spectrum estimation is used on parameter estimation.

本文研究了直扩信号的检测和参数估计两方面内容，参数估计使用了循环周期图谱估计方法。

The ratio of vertical and horizontal predominant period is 0.7-0.9, so independent characteristic period of vertical design response spectrum should be defined.

竖向与水平向地震动分量卓越周期的比值在0.7 - 0.9之间，竖向设计反应谱的特征周期应有单独规定。

Applying period frequency spectrum method to analysis of digital seismic recording is discussed in this parer.

论述了周期-频度谱方法在分析数字化地震记录中的应用。

After the chatter frequency is idenrified through the power spectrum of the chatter signals dy carrying out FFT, the best phase difference and the related tooth cutting period are calculated.

然后根据颤振系统与切削周期的能量关系，计算出最优相位差及相应的切削周期；

The probationary period plan estimates the signal power spectrum;

试用周期图法估计信号的功率谱；

Load spectrum of danger points was simulated by collecting the working frequency of different types of cranes in a period time.

采集不同类型，不同额定起重量起重机一段时间内相应起重量的工作次数数据，以模拟出危险点处相应的载荷谱。