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ER23JDJ

于 2014-01-13 发布文件大小:654KB

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在Matlab环境中编制了以雨流计数法为理论基础的二维载荷谱程序,用以对混合动力电动车电机驱动系统载荷时间历程进行统计处理,得到载荷幅均值雨流矩阵,进行幅均值各自分布假设检验,以及独立性和相关性检验,获得二维联合分布概率密度函数,建立混合动力电动车电机驱动系统台架试验用二维载荷谱.(Prepared in Matlab environment of the rain flow counting method with the theoretical basis of the two-dimensional load spectrum procedure for hybrid electric vehicles on the motor drive system for statistical processing time course load, get a load amplitude mean rain flow matrix, be the mean amplitude of each distribution hypothesis testing, as well as independence and correlation test to obtain a two-dimensional probability density function of the joint distribution, the establishment of a hybrid electric vehicle motor drive system with two-dimensional bench load spectrum.)

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hi_2
The program implements the use of χ2 test for determining the distribution law of fluctuations of the signals. Hypotheses about the distribution of this or innogo parameter system, such as expectation, variance, probability density for a given level of significance accepted or refuted, in accordance with the results. The program implements two distributions: the exponential and Rayleigh.

2009-11-26 17:43:45下载

积分：1
aerodynamics-of-wind-turbines
Denmark Technical University的大牛Hansen，第二版风力机空气动力学。(Denmark Technical University' s Daniel Hansen, the second edition of wind turbine aerodynamics.)

2013-07-19 09:00:35下载

积分：1
zcro
说明：按照对应的数字语音信号的短时帧，求出它的过零率。(Digital voice signals in accordance with the corresponding short-time frame, find its zero rate.)

2011-04-18 15:32:10下载

积分：1
Eye-diagram-of-received-signal-using-a-band-width
Band limited Eye diagram for 2-ary & 4-ary

2013-10-06 15:13:42下载

积分：1
biulao
保证准确无误，是学习通信的好帮手，汽车课设货车Matlab驱动力图程序，旋转机械二维全息谱计算的实用例程。( Ensure accurate communication is learning a good helper, Car class-based truck driver trying to Matlab program, Rotating Machinery dimensional hologram of practical spectrum calculation routines.)

2016-05-17 10:19:43下载

积分：1
Newmark-method
用Newmark 来计算地震反应谱，主要用地震动分析(With Newmark to calculate earthquake response spectrum, the main land vibration analysis )

2012-05-28 19:55:10下载

积分：1
Matlab-File-Exchange-Center
实现希尔伯特-黄变换的功能，并带有一段测试数据。希尔伯特-黄变换是使用EMD分解将信号分解为本征模态函数（IMF），然后求得IMF分量的瞬时频率。其对于非稳态和非线性信号具有优良的效果。(The function plot_hht is a realization of the Hilbert-Huang transform (HHT). The HHT decomposes a signal into intrinsic mode functions (or IMFs), and obtain the instantaneous frequency data. It is designed to work well for data that are nonstationary and nonlinear.)

2013-12-25 22:22:50下载

积分：1
VDI_2230_calculation
螺栓行业标准，介绍了各种螺栓的受力分析和计算，图表等举例说明。(Bolt industry standards, describes the various bolt stress analysis and calculations, charts illustrate.)

2013-11-30 22:46:59下载

积分：1
chordsol
CHORDSOL Chord method code for scalar equations. This code terminates on small relative-absolute errors, function [X, HIST] = CHORDSOL(X, F, TOLA, TOLR) Inputs: X = initial iterate F = function TOLA = absolute error tolerance TOLR = relative error tolerance Output: x=approximate result

2009-12-04 03:37:11下载

积分：1
beterbi
用MATLAB语言实现的卷积码编码，维特比译码(With the MATLAB language implementation of the convolutional coding, Viterbi decoding)

2010-01-16 15:12:20下载

积分：1

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