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one_dimension_wavelet
一维小波数据处理,matlab,有详细的注释和效果对比(1 dimension wavelet transform, detailed comments included in the files)
- 2010-08-22 16:55:37下载
- 积分:1
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sigshift
说明: 此程序用语计算信号的位移是用MATLAB编写的,是一函数的形式可以直接调用
(Term this procedure the calculation of the displacement signal is prepared MATLAB is a function of the form can be directly called)
- 2008-11-16 16:56:09下载
- 积分:1
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语音去噪
说明: 针对噪声消除的一个简单LMS算法,适于初学者(A simple LMS algorithm for noise elimination, suitable for beginners)
- 2020-11-29 09:00:39下载
- 积分:1
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stego
lsb water marking lsb water marking lsb water marking lsb water marking lsb water marking lsb water marking lsb water marking
- 2014-10-18 14:04:46下载
- 积分:1
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最大似然
说明: 两种不同的假设:
H1 : 0 xn A fn wn ( ) cos(2 ) ( ) = ++ π θ n=1,2,…,N,f0 为规一化频率
H0 : xn wn () () = n=1,2,…,N
其中 w[n]是均值为 0,方差为 2 σ n 的高斯白噪声,A 已知,样本间相互
独立,信号与噪声相互独立; 相位θ 是随机变量,它服从均匀分布
1 0 2 ( ) 20 p
θ π θ π ?? ≤ ≤ = ??? 其它
1)改变输入信噪比(改变 A 或噪声方差均可),给定虚警概率,画出
输入信噪比与检测概率之间的理论曲线。(注意:理论检测曲线与样本
数有关) 2)改变样本数,用 Monte-Carlo 实验方法得出 PF=0.001 时输入信噪比
与检测概率之间关系曲线(至少三条),并得出结论。 3)改变 M-C 实验次数,样本数不变,用 Monte-Carlo 实验方法得出 PF =0.001 时输入信噪比与检测概率之间关系曲线(至少三条),并得出
结论(Draw the theoretical curve between input SNR and detection probability)
- 2020-01-03 22:32:15下载
- 积分:1
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yuyinxinhaochuli
本实验要求掌握时域特征分析原理,并利用已学知识,编写程序求解语音信号的短时过零率、短时能量、短时自相关特征,分析实验结果,并能掌握借助时域分析方法所求得的参数分析语音信号的基音周期及共振峰。基于MATLAB的语音信号时域特征分析(In this study, the analysis required to master the principles of time-domain characteristics, and use the learned knowledge to write programs to solve short-time speech signal zero-crossing rate, short-time energy, short-term autocorrelation features, analysis of the experimental results, and can grasp the time domain by means of analytical methods pitch the determined parameter analysis of the speech signal and formant. Based on time-domain characteristics of the speech signal analysis MATLAB)
- 2014-11-25 22:18:09下载
- 积分:1
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BP-neural-network
BP神经网络的非线性系统建模——非线性函数拟合。(BP neural network for nonlinear system modeling nonlinear function fitting.)
- 2015-01-08 16:39:38下载
- 积分:1
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PLL
锁相环仿真,有三个独立的文件,输入信号都是FM信号(PLL Simulation)
- 2016-11-05 15:53:05下载
- 积分:1
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spectralanalysis
功率谱分析是信号处理的重要内容,包括频率解与动态区域解、误差改进方法等程序(Power spectrum analysis is an important aspect of signal processing, including the frequency of solutions and dynamic regional solutions to improve the methods of procedure error)
- 2009-05-12 15:51:22下载
- 积分:1
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matchingpursuitswithtimefrequencydictionary
时频原子分解法的一些基本资料 基于MP算法 (matching pursuits with time-frequency dictionary )
- 2010-12-08 10:38:04下载
- 积分:1