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3dwind1
空间风场模拟程序，采用谐波平衡法模拟大气边界层(code for simulation of wind field of boundary layer.)
- 2013-10-09 08:32:01下载
- 积分：1
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Optimization-by-simulated-annealing
Optimization by simulated annealing genetic algorithm, genetic algorithm so that the reverse search capabilities, through the simulation shows that can be better value.
- 2013-12-10 05:31:57下载
- 积分：1
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Overlap-add-method
this is explains overlap save and add method in matlab
- 2011-10-14 03:04:21下载
- 积分：1
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chengxu
小波变换进行变速箱故障诊断
首先将s1和s2信号时域谱（s1代表维修前的振动信号，s2代表维修后的振动信号），画出来进行对比，会发现s1信号的振动幅值会比较高；然后对s1和s2分别进行小波分解并画出各层的时域谱，只对比s1和s2分后的最高时域谱，s2更加的具有周期性，且幅值较小，s2周期性不够明显，且振动过于密集。分析完时域谱后开始分析频谱，首先对原信号s1和s2fft转换，得到频谱图，如图，然后再对小波分析后高频部分进行fft转换，做出频谱图。对比后我们发现，在f 2375HZ出（也就是齿轮的啮合频率），s1信号频谱幅值会有急剧的升高，然后，其谐波的幅值也会增大。所以可以推断出该维修前的增速箱的齿轮可能出现问题。(Gearbox fault diagnosis based on wavelet transform s1 and s2 first time domain signal spectrum (s1 behalf of the vibration signal before maintenance, vibration signal s2 representative of repaired), drawn comparison, you will find a signal s1 vibration amplitude will be higher then s1 and s2 respectively wavelet decomposition and draw the layers of time-domain spectrum to only a maximum time domain spectroscopy s1 and s2 points after, s2 is more cyclical and smaller magnitude, s2 cyclical enough obviously, and the vibration is too dense. End domain spectral analysis after the beginning of the spectrum analysis, the first of the original signal s1 and s2fft conversion to give the spectrum, as shown, and then after the high frequency part of wavelet analysis fft transformation to make spectrum. We found that after the comparison, at f 2375HZ out (i.e. the gear mesh frequency), there will be a sharp increase in the amplitude spectrum of the signal s1, and then, the amplitude of the ha)
- 2017-01-17 19:18:02下载
- 积分：1
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ofdm
完整的OFDM仿真平台，包括信道估计，调制，编码(ＯＦＤＭ ｓｉｍｕｌａｔｉｏｎ)
- 2020-11-11 19:39:44下载
- 积分：1
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cskmeans
cskmeans 聚类算法的一种
1. 分裂法(partitioning methods)：给定一个有N个元组或者纪录的数据集，分裂法将构造K个分组，每一个分组就代表一个聚类，K<N。而且这K个分组满足下列条件：（1） 每一个分组至少包含一个数据纪录；（2）每一个数据纪录属于且仅属于一个分组（注意：这个要求在某些模糊聚类算法中可以放宽）；对于给定的K，算法首先给出一个初始的分组方法，以后通过反复迭代的方法改变分组，使得每一次改进之后的分组方案都较前一次好，而所谓好的标准就是：同一分组中的记录越近越好，而不同分组中的纪录越远越好。使用这个基本思想的算法有：K-MEANS算法、K-MEDOIDS算法、CLARANS算法；()
- 2008-07-07 10:52:51下载
- 积分：1
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ACO-TSP-matlab-code
ant colony optomization tsp code in matlab
- 2015-04-10 16:31:46下载
- 积分：1
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SPWM
用MATLAB实现的二电平三相逆变器仿真分析。基于simulink的spwm电压型三相逆变器仿真(Simulation with MATLAB realization of the two-level three-phase inverter. Simulink based spwm voltage three-phase inverter simulation)
- 2015-05-21 22:28:02下载
- 积分：1
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simplecharrec(I&II)
Character Recognition Example (I&II)- Pre-processing of Image (Matlab Code)(Character Recognition (I)
- 2006-05-19 01:00:01下载
- 积分：1
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multi-curve_in_one_plane
说明： 同一坐标系中的多条曲线的MATLAB程序，直接运行。希望对大家有帮助。(The same coordinate system in the curve of a number of MATLAB procedures, direct running. We want to help.)
- 2009-08-01 18:27:04下载
- 积分：1
