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ga jsp
用遗传算法解决车间生产调度。Matlab下实现。(Using genetic algorithms to solve production scheduling workshop. Matlab under implementation.)
- 2009-02-24 17:18:02下载
- 积分:1
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chepaishibie
车牌定位系统的目的在于正确获取整个图像中车牌的区域,并识别出车牌号。(The purpose of plate positioning system to obtain the correct license plate area in the whole image, and brand recognition out of the bus.)
- 2010-11-25 17:27:37下载
- 积分:1
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fz
说明: Matlab仿真过程中随机取样生成图形的一个例子(Matlab simulation of random sampling to generate a graphic example of)
- 2011-10-14 13:04:26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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fhase_dif_estimate
基于DFT的正弦波的频率、初相以及幅度三项参数的高精度估计方法,含测试程序。(DFT-based sine wave frequency, initial phase and amplitude of three high-precision parameter estimation methods, including test procedures.)
- 2013-07-01 14:36:31下载
- 积分:1
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rs1
完整的RS编译码仿真程序,基于matlab仿真实现(integrity of the RS encryption simulation program, based on Matlab Simulation)
- 2007-05-13 13:00:36下载
- 积分:1
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Program
聚类分析的有效性的视觉方法 VAT DBE(Cluster analysis of the effectiveness of visual methods VAT, DBE)
- 2012-08-16 18:24:40下载
- 积分:1
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noise
捷联惯导随机漂移白噪声计算matlab仿真程序,包含数据(SINS random drift of white noise matlab simulation program, contains data)
- 2012-09-05 14:49:16下载
- 积分:1
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Statistical-Learning_programming
统计学习编程题目,是在做作业的时候碰到的一些小例子,对统计学习课程的学习有帮助(Statistical learning programming problem, some small examples encountered at homework time, can be helpful to learn the statistical learning courses)
- 2015-06-29 11:21:58下载
- 积分:1
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12101674581
画函数用的matlab界面源代码 多多指教(Painting function used in the source code matlab interface exhibitions)
- 2008-06-08 18:45:24下载
- 积分:1