1) identification of mode frequency
模态频率识别
2) Frequency identification
频率识别
1.
In the process of acquisition,a fast frequency identification method was used to realize the hybrid DS/FH systems fast acquisition.
同步包括捕获和跟踪两个阶段,在捕获阶段,利用快速频率识别方法对接收信号频率进行估计,实现混合系统的快速捕获;在跟踪阶段,根据获得的接收信号频率信息,等待在某一个特定的频率,通过直扩信号的捕获、跟踪、解调过程,获取接收信号的跳频同步信息,从而实现混合系统的快速同步。
4) mode identification
模态识别
1.
Also, the process of the experiment and the method of mode identification are discussed in details.
介绍了实验背景 ,实验过程 ,及模态识别的方法 ,得到了拉线塔横向、纵向及扭转向的一阶频率、振型和阻尼比。
5) modal identification
模态识别
1.
Method of modal identification based on wavelet transform in LTI system under non-stationary random excitation;
非平稳随机激励下线性系统模态识别的小波方法
2.
A kind of method of modal identification subject to ambient excitation is presented.
提出一种环境激励下的模态识别方法。
3.
A poly-reference time-domain operating modal identification complex exponential method is presented since cross-correlation functions have the same form as impulse response functions.
对于一些大型工作结构 ,有时很难测得输入信号 ,只能单独利用实测响应数据进行工作模态识别。
6) modal analysis
模态识别
1.
A method of cross power spectral density between responses is derived and a poly reference modal analysis method using cross power spectral density method in frequency domain is presented in this paper.
对各测点响应的互功率谱密度函数进行了详细推导 ,提出了一种基于互功率谱密度的频域多参点辨识法 ,这意味着许多原本利用频响函数的传统频域识别法可以很容易地用于工作状态下的模态识别 ,大大开阔了未知激励下模态识别的视野。
补充资料：频率计量(见时间频率计量)
频率计量(见时间频率计量)
frequency metrology: see time and frequency metrology
口n IQ liliang顷率频率计皿(f比quency metrolo盯) 计t。见时闰
说明：补充资料仅用于学习参考，请勿用于其它任何用途。
参考词条