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Heisenberg Uncertainty Principle in time frequency analysis plays a very important role in signal analysis, which shows the close relationship between time and frequency in Time frequency analysis . 时频分析中的Heisenberg不确定原理在信号分析中具有重要作用和地位 ;它表明了在时频分析中时间与频率之间密不可分的关系 .
Keywords blasting vibration;time and frequency analysis;rough set;FNN;prediction; 爆破振动;时频分析;粗糙集;模糊神经网络;预测;
Specify the time and frequency with which to compile audiences. 指定搜集访问者所使用的时间和频率。
Keywords Arc sound Time and frequency analysis Linear prediction coding （LPC） model Radical basis function （RBF） neural network Gas metal arc welding （GMAW） Quality monitoring; 关键词电弧声;时频分析;线性预测模型;径向基函数神经网络;熔化极气体保护电弧焊;质量监控;
The time frequency analysis remedies the defect that short Fourier translation (SFT) has the same time resolution and frequency resolution to different frequency ranges. 该方法克服了SFT（短时Fourier变换）分析对高、低频段具有相同的时间分辨率和频率分辨率的缺点，弥补了小波变换只能粗糙地模拟基底膜带通滤波器特性的不足。
The application of MATLAB is described in mechanical control engineering basis teaching using concrete examples of time analysis and frequency analysis in a contrasting way. 以时域分析和频域分析中的具体实例,通过对比的手法,说明了MATLAB在机械控制工程基础教学中的应用。
As a new study, Wavelet analysis is called "the digital microscope" and applied well in time and frequency field. 小波分析是一门新兴学科，被称为“数字显微镜”，它在时频两域具有良好的局部特性。
The results show that the method of time-frequency analysis can be used to extract acoustic logging data for solving the practical problems related to time and frequency. 分析结果显示，时频分析方法应用于声波测井信息提取可以解决时间和频率相关的实际问题。
The analysis of individual segment reveals more sensitively the changes of the vibration signals in both time and frequency domain caused by gear faults. 它将振动平均信号等距分段（所分段数与被监测齿轮齿数相等），然后对分段信号进行频谱分析等。
Based on data analysis in both time and frequency domain, characteristics of blade vibration response at rotating stall and surge condition are introduced. 在对时域和频域数据分析的基础上,论述了旋转失速和喘振状态下叶片振动响应的特征。
As mentioned above, three parameter VFD model can characterize the viscoelasticity of solid propellant. Applied it to SRM dynamic analysis, time and frequency domain response can be calculated. 综上所述,三参数VFD模型能够很好的反映推进剂的粘弹特性,将它用于固体发动机动力学分析,可以得到药柱在时域和频域内的动态响应。
From the radio spectrum of Weissenau in Germany, we found a corresponding burst on time and frequency. 在德国Weissenau的太阳射电频谱记录上找到了对应的爆发;
Cursors give quick readouts of voltage,time and frequency with an accurancy of 1/32 div. 系统可以明显地提高示波器的读出性能:快速给出电压、时间和频率的测量值,读出精度达1/32DIV。
How to decrease anesthesin time and frequency is a important problem to be considered. 减少换药次数及住院天数是一个重要问题。
Learning a language require time and effort. 学习一种语言是需要时间和精力的。
The decorrelation caused by the time and frequency synchronization errors is presented for the first time. 基于该误差模型,分析了时间和频率同步误差对干涉相位的影响,首次推导了同步误差导致的信号去相关。
Traditionally, the SISO channel is described by the statistics along two dimensions: time and frequency. 传统上，单一输入单一输出的通道可以被两个维度的统计特性所描述，即时域和频域；
You must make sure of the time and place. 你必须把时间和地点弄清楚。
It realizes graphics protraction of time and frequency domain in every time period. 它实现了各个信号的时域和频域的图形的绘制。
Don't waste your time and energy on trifles. 别把你的时间和精力浪费在琐事上。