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Periodogram-powe
说明: 平均周期图法和平滑平均周期图法估计功率谱
从经典功率谱估计周期图法原理入手,从理论上分析了其存在的局限性,借助Welch算法对其进行修正。依靠Matlab强大的数值分析和信号处理能力进行实验!!
用周期图法和welch法分别估计了一下信号的功率谱密度。采样频率200Hz,时间序列长度2048,FFT数据点数2048。其中welch法使用hanning窗,窗口长度600.(Average periodogram and periodogram smoothing method to estimate the average power spectrum from the classical power spectrum estimation periodogram principle starting from the theoretical analysis of the limitations of its existence, with the Welch algorithm, amending them. Rely on the powerful Matlab numerical analysis and signal processing capabilities to experiment!! With periodogram and welch method were estimated signal power spectral density about. Sampling frequency of 200Hz, the time sequence length 2048, FFT data points 2048. Welch method which uses hanning window, the window length of 600.)
- 2011-03-16 16:45:58下载
- 积分:1
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matlab
仿真程序:首先需要用一个随机发生器产生(0.1)内的均匀随机数,然后再将该序列映射到对应的幅度电平{Am}。然后将这个范围再分成4个相等的区间,这些子区间分别对应于4个信号比特的符号00,01,10,11。检测器观察到r=Am+n,并且计算r和4种可能传输的信号幅度之间的距离,它的输出Bm就是相应于最小距离的信号电平。Bm与真正的的传输信号幅度比较,差错计数器用来对检测器产生的差错计数。(Simulation program: first need to use a random generator (0.1) the uniform random number, then the sequence is mapped to the corresponding amplitude level {Am}. Then this range has been divided into four equal intervals, these sub-intervals corresponding to four signal bits of the symbol 00,01,10,11. Detector observed r = Am+ n, and calculate r and 4 possible transmission distance between the signal amplitude, its output corresponding to the minimum distance Bm is the signal level. Bm and the real rate of transmission of the signal comparison, error detection counter is used to generate the error count.)
- 2011-05-21 12:18:13下载
- 积分:1
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chronix-player-code-r13
To modify your build process, add your task inside one of the targets below and uncomment it
- 2018-12-22 05:24:25下载
- 积分:1
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matlab-GAOT
matlab遗传学命令大全,提供给你研究遗传学所需要的所有命令,是matlab工具书必备(matlab)
- 2010-11-24 21:46:42下载
- 积分:1
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Chen---Robust-PID-controller-autotuning-with-a-ph
ROBUST PID CONTROLLER AUTOTUNING
WITH A PHASE SHAPER
- 2011-04-20 01:20:55下载
- 积分:1
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matlab90example
matlab的90个实例,比较实用,可以下来看看或许有你用得到的(matlab 90 instances, more practical, you can see down may have you used to get)
- 2012-09-05 21:58:13下载
- 积分:1
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BFSK
BFSK的rayleigh信道传输中的误码率计算(BFSK of rayleigh channel transmission bit error rate calculation)
- 2015-03-02 10:21:08下载
- 积分:1
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DihotomiGoldenRatioFibonacci
Implemented methods are:
Bisection method
The method of the golden section
Fibonacci method
Development Environment Visual Studio 2010.
no comments
C / C ++ | Windows NT / 2000 / XP / Vista / 7
- 2016-12-09 00:53:22下载
- 积分:1
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waveletdenoising
wavelet小波通用去噪方法,包括几幅雷达图像(General wavelet wavelet denoising methods, including the pieces of radar images)
- 2010-05-06 10:29:11下载
- 积分:1
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协方差矩阵稀疏DOA SRACV
协方差矩阵稀疏DOA,对利用压缩感知进行定位有参考作用(Covariance matrix sparse DOA, fixing the use of compression perception has reference function
)
- 2020-12-01 20:19:27下载
- 积分:1