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matlab1
matlab仿真程序,适合初学者,比较实用,可用性高。(matlab simulation program, suitable for beginners, more practical, high-availability.)
- 2008-05-27 10:00:28下载
- 积分:1
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dikstra
说明: dijkstra算法求最短路径及路径标号的matlab实现(dijkstra,shortest path)
- 2011-03-31 09:44:57下载
- 积分:1
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Greedy-Snake
Greedy sanke algorithm implements(贪婪蛇算法的实现,该算法是对原Donna J. Williams 《A fast algorithm for active contours》 (1990) 论文的简化实现。对算法研究很有帮助。参数很多,需要调节才能获得良好的效果。)
- 2014-11-08 09:09:01下载
- 积分:1
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gaussian-matlab
高斯拟合。。。。。。。。。。。。。。。。。。。。。。。(gaussian fitting。。。。。。。。。。。。。。。)
- 2013-05-08 22:00:29下载
- 积分:1
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BPSK_Simulation_for_AWGN_Rayleigh_Channels
BPSK SYSTEM SIMULATION
We simulate the generation of random variables r0 and r1, which constitutes the input to detector.The detector output is compared with the binary transmitted sequence and an error counter is used to count the number of bit errors.
(BPSK We simulate the gen Kearney of random variables r0 and r1. which constitutes the input to detector.The de tector output is compared with the binary trans mitted sequence and an error counter is used to c been the number of bit errors.)
- 2006-06-20 04:25:43下载
- 积分:1
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基于罚函数的粒子群算法
基于罚函数法的粒子群算法,处理优化调度问题(Particle swarm optimization based on penalty function method to deal with optimal scheduling problem)
- 2020-11-04 14:39:51下载
- 积分:1
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mod_zulu-1.5.4-2
zulu component for joomla
- 2009-11-27 23:55:55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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FillInWrap
This FloatValue represents a float value that is converted from another scalar value.
- 2014-02-17 13:02:20下载
- 积分:1
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bozcuoglu_hw3
MATLAB IMPLEMENTATION
OF STAR ALGORITHM
- 2010-11-23 02:41:05下载
- 积分:1