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MATLAB-GUI-instruction-video-8
MATLAB GUI教学视频8：选择参数绘制曲线(MATLAB GUI instruction video 8: Select the parameters to draw the curve)
- 2011-07-15 11:05:25下载
- 积分：1
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examp16_2
二维小波分析在图像平滑、融合与增强中的应用(D wavelet analysis in image smoothing, integration and enhancement of)
- 2016-01-25 15:18:01下载
- 积分：1
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antmoving
pheromone levels of terms based on the quality of the best rule among the rules
constructed improves the predictive accuracy for some datasets.
- 2010-09-06 21:30:27下载
- 积分：1
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Reducing_APR_of_OFDM
用部分传输序列算法降低OFDM信号峰均功率比算法(Reduction algorithm with Partial Transmit Sequence OFDM signal PAPR Algorithm)
- 2010-03-14 11:25:24下载
- 积分：1
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ss3
二阶系统一次性完成的最小二乘法辨识程序，便于理解最小二乘辨识的原理(Completed a one-time second-order system least squares identification procedure, easy to understand the principle of least squares identification)
- 2011-10-12 17:15:57下载
- 积分：1
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anticuttingattack
图像受到裁剪攻击时的一些算法 只要输入图像和想要裁剪的位置 就可以得到想要的结果(Images by cutting attack some algorithm as long as the input image and want to cut position can be the desired results)
- 2009-03-17 00:20:27下载
- 积分：1
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recognizewriting
C#的手写汉字识别程序，小程序用来参考一下(C#, handwritten Chinese character recognition program)
- 2010-02-03 19:23:23下载
- 积分：1
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fangzhen
实验一 双极性矩形随机信号的归一化功率谱密度一
1.1 功率谱密度简介
平稳过程的任何一个非零样本函数的持续时间为无限长，显然都不满足绝对可积和总能量有限的条件。因此，它的傅里叶变换不存在即没有频谱函数。所以我们用功率谱密度来表述其频谱特性。
随机过程的任一实现是一个确定的功率型信号。而对于任意的确定功率信号f(t)，它的功率谱密度为：
式中， 是f(t)的截短函数 对应的频谱函数。f(t)是平稳随机过程 的一个实现。而随机过程某一个实现的功率谱密度不能作为过程的功率谱密度。过程的功率谱密度应该看作是任一实现的功率谱密度的统计平均，即
虽然该式给出了平稳随机过程的功率谱密度，但我们通常都不利用这个式子来计算功率谱。我们知道，确知的非周期功率信号的自相关函数与功率谱密度是一对傅里叶变换。对于平稳随机过程，也有类似的关系，即
和
对于平稳随机过程我们通常先求出其自相关函数再利用上式求出其功率谱密度。
1.2 实验要求
1.了解平稳随机信号功率谱的概念及计算方法
2.仿真不同占空比，等概、非等概双极性矩形随机信号的归一化功率谱密度
3.分析不同信号所包含的频谱分量，有无直流分量和定时分量信息
(A pair of rectangular random experiment polarity signal sample return a nonzero function of any duration power spectral density of a 1.1 power spectral density of a stationary process Introduction of infinite length, apparently not satisfied absolutely integrable and the total energy of the limited conditions. Therefore, it is the Fourier transform of the spectrum that does not function does not exist. Therefore, we use the power spectral density to express their spectral characteristics. Any random process is a realization of a certain type signal power. For arbitrarily determined power signal f (t), its power spectral density is: wherein, is f (t) is a function corresponding to the truncated spectrum function. f (t) is a stationary random process of realization. The random process to achieve a certain power spectral density can not serve as the power spectral density of the process. Power spectral density process should be seen as a statistical average power spectral density of any r)
- 2014-11-30 20:39:29下载
- 积分：1
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MATLAB
MATLAB有限元分析与应用,详细的介绍了matlab在结构分析中的应用(MATLAB finite element analysis and application, a detailed description of the matlab in Structural Analysis)
- 2014-02-12 13:02:19下载
- 积分：1
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多尺度散布熵(matlab)
说明： 用matlab编写的多尺度散布熵程序，还保存精细多尺度散布熵程序(The program of multi-scale dispersion entropy written by MATLAB also preserves the program of fine multi-scale dispersion entropy.)
- 2021-03-17 09:59:20下载
- 积分：1
