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FFTOcean
基于FFT的海面模拟。能够实现海面的复制，波浪模拟效果较好。(FFT-based simulation of the sea. Be able to achieve replication of the sea, wave simulation better.)
- 2020-07-01 09:40:02下载
- 积分：1
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energy-leakage--dual-tree
首先根据高斯白噪声频率充满整个频带的特性，通过双树复小波包变换对高斯白噪声进行分解，利用频带能量泄漏的定量分析方法，验证了双树复小波包变换具有较低的频带能量泄漏特性；其次利用双树复小波包变换逐层分解信号，对每层分解所得分量求其FFT谱的峭度，得到基于双树复小波包变换的谱峭度图，根据图中峭度最大的原则，可以自动准确的选择信号分解最佳层数和最佳分量；最后将基于双树复小波包变换的谱峭度图的故障诊断方法应用于实际工程中，对齿轮故障振动信号进行分析，选择最佳分解层数和分量后利用希尔伯特包络解调，有效准确地提取了故障特征信息，验证了方法的可行性和有效性(The parameters of a filter were determined by experience, and that has a great influence on the
results of signal processing. The discrete wavelet packet transform has a larger energy leakage of frequency band,
which obviously affected the results of the envelope demodulation. It is necessary to have a method with a lower
energy leakage of the frequency band before envelope demodulation. The dual tree complex wavelet packet
transform (DT-CWPT) was a new signal processing method that had many good qualities. Because the energy
leakage of the frequency band was smaller when the signal was decomposed by a dual tree complex wavelet
packet transform, the dual tree complex wavelet packet transform was used to extract the fault feature information
in the field of fault diagnosis. In this paper, first, according to the characteristics of Gaussian white noise, whose
frequency was full of the whole frequency band, Gaussian white noise was decomposed by a dual-tree complex
wavel)
- 2014-05-28 17:13:41下载
- 积分：1
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rwdrcoef
程序算任意点FFT和小波变换,以及可选择多种小波及小波变换后的单频带重够,另算信号的Lipschitz指数,高级数字信号处理!(counting procedures arbitrary point FFT and Wavelet Transform, and the choice of multiple wavelet and the wavelet transform of a single-band heavy enough, and another count signal Lipschitz index advanced digital signal processing!)
- 2006-08-01 09:35:03下载
- 积分：1
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SPH3DOnTheBook
Dr. Liu 在《光滑粒子流体动力学--一种无网格方法》一书中提供的光滑粒子流体动力学（SPH）源程序，采用Fortran语言编写，用于计算可压缩流体力学问题。(Dr. Liu in the " Smooth Particle Hydrodynamics- a meshless method," a book provided by the smooth particle hydrodynamics (SPH) source code, using Fortran language, used to calculate the fluid flow problem.)
- 2021-01-08 11:58:51下载
- 积分：1
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numerical-methods
数值方法的5个重要的算法：
1.[Dirich.m] 求解拉普拉斯方程的狄利克雷方法. 用于偏微分方程的数值解
2.[Hamming.m] 汉明方法是用来修正微分方程的多步预测。
3. [Milne.m] 米尔恩 - 辛普森差分方程求解方法，用于预测校正方法。
4. [Rkf45.m]龙格 - 库塔 - 沃尔伯格错误控制和步骤的方法求解微分方程的近似解
5.[Romber.m]著名的龙贝格积分源代码。计算结果存在并显示为下三角矩阵。(Numerical Methods in five of the more important algorithms:
1. [Dirich.m] to solve the Laplace equation Dirichlet method for the numerical solution of partial differential equations
2.[Hamming.m] Hamming method is the multistep forecast corrected differential equations.
3. [Milne.m] the Milne- Simpson method as a differential equation solver used forecast correction method.
4. [Rkf45.m] Runge- Kutta- Wahlberg error control and step method for solving differential equations approximate solution
5. [Romber.m] the famous Romberg integral source code numerical integration, the presence of computable results show a lower triangular matrix.)
- 2013-03-09 01:35:19下载
- 积分：1
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p4vasp_for_windows_install
这个windows下可视化晶体结构的软件,可用于构造晶体,界面,表面...对于做第一性原理初始模型的构建以及结果的可视化分析特别有用处.(Under the windows crystal structure visualization software can be used for the crystal structure, interface, surface ... do first principles for the construction of the initial model and the results of visual analysis is particularly useful.)
- 2010-11-05 01:35:00下载
- 积分：1
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eightpoints
八点法计算camera matrix，八点法计算camera matrix，八点法计算camera matrix，八点法计算camera matrix，八点法计算camera matrix(Eight law camera matrix, eight law camera matrix, eight law camera matrix, eight law camera matrix, eight law camera matrix)
- 2012-12-12 04:17:23下载
- 积分：1
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PQ decomposition method
进行PQ分解，计算电力系统潮流的有效方法，应用广泛(PQ decomposition is an effective method for calculating power flow in power system.)
- 2019-04-23 21:34:16下载
- 积分：1
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RLFWD01
经过修改杨成林的《瑞雷波勘探》附录得到的瑞雷面波一维频散曲线(Yang Chenglin modified Rayleigh wave of " Rayleigh wave exploration in" Appendix obtain one-dimensional dispersion curves)
- 2020-09-13 09:47:59下载
- 积分：1
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sy3
说明： matlab程序，有约束最优化问题直接法--复合形法(matlab program, constrained optimization problems are the direct method- the complex method)
- 2008-11-04 11:59:46下载
- 积分：1
