power spectral

The globe and local bifurcation diagrams, power spectral density plot of the chaos and the time history plot and phase plane plot of three periodic motions are given, which are instructive to the real design of aircraft structures.

给出了全局分岔图、局部分岔图、混沌运动的功率谱密度图及3种周期运动的时间历程曲线和相平面图，对于实际的飞行结构设计具有重要的指导意义。

By computing the power spectral density and defining a measure parameter, we show that under certain temperature, action potential reach a maximum, which corresponding to the coherence resonance.

通过计算功率谱以及由功率谱定义的β因子，很清楚地看到β在某些温度时达到了最大值，产生了相干共振。

Chaos analysis of the dynamic behavior of temperature fluctuations in a vapor-liquid-solid three phases flow boiling system was conducted in terms of power spectral density function, autocorrelation function, reconstructed phase space, correlation dimension and Kolmogorov entropy.

运用功率谱分析、自相关分析、相图、关联维数和K熵等非线性分析技术对汽液固三相流动沸腾传热系统中的温度波动信号进行了定性和定量研究。

A new statistical model for non-frequency mobilechannel is presented in this paper from the Doppler-Power-Spectral-Density.

本文从多普勒功率谱的角度研究了 非 频率选择性衰落的信道模型.

Three methods for analyzing and processing the laser scattering signal of bubbles in water, the threshold detection, noise elimination processing and power spectral estimation, are put forward.

提出了阈值检测、降噪处理和功率谱估计三种分析和处理水中气泡激光散射信号的方法。

AMI generated code, and for its power spectral density and time-domain waveform.

产生AMI码, 并求其功率谱密度和时域波形.

The matrix of power spectral density function of fluctuating wind load is established first.

首先建立了脉动风荷载的功率谱密度函数矩阵.

Applying the power spectral analysis, the laws of 2.2-year-periodicity can be found. With the method of the degree and time of concentration, we found that hails and cold disasters have a high frequency in spring and floods, droughts and typhoons often happen in summer.

对地震、水灾等6种灾害的功率谱、集中度和集中期分析显示，南通市自然灾害具有2.2年的年际变化规律和春季多冰雹、寒害，夏季多旱涝、台风的年内分布规律；