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easy-modern-power-spectrum-estimate
现代谱估计，较传统的经典功率谱估计，在分辨率和估计正确程度上有了一定的提高(AR estimate of spectrum)
- 2012-09-05 20:11:52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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sound
matlab的处理程序，对“hello”声音信号进行采样滤波后重放。(matlab handler, after hello voice signal is sampled filter replay.)
- 2014-12-01 15:45:42下载
- 积分：1
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power_tcsc
Matlab的TCS仿真程序，可以运行试用！(The TCS Matlab simulation program, you can run trial!)
- 2010-05-26 15:17:04下载
- 积分：1
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IIR-filter-coefficients
Calculating IIR filter coefficients of 2nd Order IIR Filter
- 2015-01-15 21:09:26下载
- 积分：1
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tssrcolor120131007
用matlab实现的MSR增强算法，对低照度图像有一定的增强效果(Using matlab realize the MSR enhancement algorithms for enhanced low-light images have a certain effect)
- 2014-01-22 18:02:58下载
- 积分：1
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Graphics_and_Image_Processing_Matlab_function_comm
Matlab图形图像处理函数命令Graphics and Image Processing Matlab function commands(Graphics and Image Processing Matlab function commands Graphics and Image Processing Matlab function commands)
- 2010-08-02 11:17:28下载
- 积分：1
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MATLABCODES
內涵模糊理論與類神經網路的程式碼...提供初學者做研究參考(Connotation of fuzzy theory and neural network code ... to provide a reference for beginners to do research)
- 2008-07-16 11:13:22下载
- 积分：1
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mimo-ofdm
主要是将MIMO-OFDM系统中的空时分组码与MIMO系统中的空时分组码进行对比，着重突出MIMO-OFDM的优点。(Mainly in the MIMO-OFDM systems with space-time block codes in MIMO systems space-time block codes are compared to highlight the advantages of MIMO-OFDM.
)
- 2011-12-18 17:55:53下载
- 积分：1
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演化博弈
演化博弈 数值分析 图形展示等(game theory)
- 2018-07-15 10:00:57下载
- 积分：1
