介绍了瞬时频率的概念和瞬态谱的小波包计算方法,并结合时间域模拟信号给出了其时频分布。
The conception of transient frequency and calculation method of wavelet packet are introduced, and time frequency distribution about simulation and actual seismic signals is given.
来自澳大利亚和日本的研究人员成功地实现了光波包传送,这项技术可能会为量子通信及计算带来变革。
Researchers from Australia and Japan have successfully teleported wave packets of light, potentially revolutionizing quantum communications and computing.
该方法具有编程简单、使用方便和实用性强 等特点,可使波包运动分析计算的工作量大为减少。
This method is simple in programming, convenient in operation and practical. By using it, the workload in analysis and calculation of wave packet movement can be reduced greatly.
用计算机程序建立波包的模型,演示粒子在一维方势阶处的行为。
The model of wave-packet is established by using computer, to demonstrate the action of a particle at the square potential altar of one-dimensional.
根据数值计算误差的特点分析及小波包多尺度、高分辨的特性,设计了一种基于小波包的滤波器,较好地解决了消除数值积分计算引入误差的问题。
A filter is designed based on wavelet packet according to the features of numerical integral errors and those of multiple scales and high resolving power of wavelet packet.
量子波包动力学计算对于实验结果的解释和预测起着关键作用。
The quantum wave packet dynamics calculations play an important role in explanation and anticipation of experimental results.
论文中引入了一种特殊的经典波包——矩形波包,计算了笛卡尔坐标、动量以及它们平方的平均值。
This dissertation basically includes the following two studies:First, we calculate the expectations of the Cartesian momentum operator over the wave packet on sphere.
提出了一种基于导频信号和最大似然信道估计算法的离散小波包调制(DWPM)系统。
Discrete Wavelet Packet Modulation (DWPM) System based on ML (Maximum Likelihood) algorithm and Optimum Pilot Symbol Assisted Modulation (OPSAM) is studied for Rayleigh Fading Channels.
将信号样本进行小波包变换,并选择最好基,计算各子频带的平均能量,得到14维特征向量。
Signal sample is analyzed through wavelet packet theory, best base is chose, and the average energy of every sub frequency band is calculated, at last 14 links of characteristic vectors are get.
该方法研究了幅度起伏和时间漂移条件下回波包络模型,并对模型进行了简化处理,可以更准确地计算超声波渡越时间。
This method researches the echo envelope model which has been simplified in this paper under range wave and time excursion, and can compute the transmitting time more accurately.
小波包分析提取振动信号中的特征频率,利用matlabGUI实现的串口编程例子,自写曲率计算函数。
Wavelet packet analysis to extract vibration signal characteristic frequency, Use serial programming examples matlab GUI implementation, Since writing the curvature calculation function.
在数值计算中,采用I2的一个二势能面系统,得到了监测基电子态高振动激发波包的吸收光谱。
The detection of a highly vibrationally pump-dumped iodine wave packet dynamics in the ground X state is numerically demonstrated by using a model I2 molecule with two Morse potential surfaces.
在数值计算中,采用I2的一个二势能面系统,得到了监测基电子态高振动激发波包的吸收光谱。
The detection of a highly vibrationally pump-dumped iodine wave packet dynamics in the ground X state is numerically demonstrated by using a model I2 molecule with two Morse potential surfaces.
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