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matlab
汽车振动的频谱分析。很有意思，里面函数简单适合初学者。(Spectrum analysis of vehicle vibration. Very interesting, which a simple function suitable for beginners.)
- 2009-04-07 17:38:32下载
- 积分：1
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matlab
精通MATLAB—综合辅导与指南 精通MatLAB的很好的内容
(Proficient in MATLAB-comprehensive counseling and guidance of a good proficient in the content of MatLAB)
- 2009-05-02 11:42:00下载
- 积分：1
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tzsb
使用高阶累积量对MPSK信号进行调制识别，效果很好，可以达到很高的识别率，我曾论证了好久，确定它的结果没有问题，确实识别率很高(Modulation recognition of MPSK signals using higher order cumulants good effect, and can achieve a high recognition rate, I have argued for a long time, and its results, is indeed a high recognition rate)
- 2012-10-06 09:44:54下载
- 积分：1
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FENXING-QU-MIAN
给出了矩形域上分形插值数学模型,分形插值曲面的MATLAB程序,对程序中的主要变量进行了说明,并应用实际数据进行了分形插值曲面的实例研究。运用少量已知数据值,模拟出粗糙表面,这对于直观显示复杂物体的几何形态,研究具有分形特征的地形地貌、断层表面和材料裂隙表面,具有重要的理论意义和实用价值。 更多还原
(Gives the fractal interpolation on a rectangular field mathematical model of fractal interpolation MATLAB program, the main variables of the program are described and applied case studies actual data fractal interpolation surface. Use a small amount of known data values to simulate the rough surface, which visually displays the geometry of complex objects, study topography fractal characteristics, surface faults and fissures surface material has important theoretical and practical value. More Restore)
- 2013-12-16 09:41:52下载
- 积分：1
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Chapter-1
it is very useful paper for multilevel converter
- 2012-01-22 12:55:44下载
- 积分：1
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Gerhard-Weiss---Multiagent-Systems---A-Modern-App
multi agents systems 2
- 2011-05-21 03:07:55下载
- 积分：1
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ssss
sir/mam,,pls prvide me some matlab codes
- 2011-09-03 02:42:52下载
- 积分：1
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MATLAB-ISAR-Turntable-imaging
仿真了转台目标，并进行了R-D算法仿真。 (Simulation of the turntable-goal and the RD algorithm simulation.)
- 2021-01-31 23:20:01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
介绍了几种自适应数字波束形成的算法以及用MATLAB实现的例程(Introduced several adaptive digital beam forming algorithm and using MATLAB implementation of the routine)
- 2016-01-25 11:15:24下载
- 积分：1
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