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DOA
高阶谱分析工具6,适用于阵列信号处理、雷达信号处理等。(High-order spectral analysis toolbox for array signal processing, radar signal processing.)
- 2009-04-04 16:10:49下载
- 积分:1
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uniformestimatesdoaParkarray
均匀园阵doa估计music算法源程序,实现对均匀园阵doa估计(Park doa uniform array algorithm estimates source music, to achieve uniform estimates doa Park array)
- 2009-05-06 10:58:13下载
- 积分:1
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GM11
说明: GM(1,1)的程序,要用就下啥,可以预测的,里面有详细的说明,很容易看懂的!(GM (1,1) procedures, to use on the next receivers, and can be predicted, there are detailed explanations, it is easy to read!)
- 2005-09-17 15:27:17下载
- 积分:1
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knn_self
数据统计学习中的knn算法,实现对多组数据的交叉验证(Statistics Learning knn algorithm to achieve the multi-group cross-validation data)
- 2013-10-20 21:49:25下载
- 积分:1
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OFDM-MATLAB-simulate
关于ODFM的仿真程序,程序挺多的,有你想要的。(About ODFM simulation program, a lot of programs have what you want.)
- 2021-04-12 14:38:57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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Desktop
在齿轮箱故障诊断中,需要对故障信号进行特征提取,本程序是齿轮箱特征提取源代码。(Gearbox fault diagnosis, the need for fault signal feature extraction, the procedure is to extract the source code gearbox features.)
- 2021-04-07 22:49:01下载
- 积分:1
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New-folder-(3)
musc this program calculates arrival
- 2013-10-01 23:53:23下载
- 积分:1
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daul_ps_sector_2D_4s
光子筛孔分布的例程,环数不同,用于光子筛成像时使用(Photon sieve distribution routines different rings, used for imaging photon sieve)
- 2013-10-14 20:03:02下载
- 积分:1
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时间序列的G-P算法
时间序列的G_P算法,计算出序列的关联维数d,然后利用嵌入维数m>=2d+1,选取合适的嵌入维数。(G_P time series algorithm to calculate the correlation dimension d sequence, and then use the embedding dimension m> = 2d+1, select the appropriate embedding dimension.)
- 2014-01-19 13:47:49下载
- 积分:1