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0403435刘艳
- MATLAB实现功率谱估计的程序.采用现代谱估计方法,最大熵谱法,Brug法和Levinson法-MATLAB power spectrum estimation procedures. The introduction of modern spectral estimation methods, maximum entropy spectrum, Brug law and Levinson Law
ARMODEL
- 功率谱估计的应用范围很广,在各学科和应用领域中受到了极大的重视。在《现代信号处理》课程中讲述了经典谱估计和现代谱估计这两大类谱估计方法;经典谱估计是基于傅立叶变换的,虽然具有运算效率高的优点,但是频谱分辨率低同时旁瓣泄漏严重,对长序列有着良好的估计。为了克服经典谱估计的缺点,人们开展了对现代谱估计方法的研究。现代谱估计是以随机过程的参数模型为基础的,有最大似然估计法、最大熵法、AR模型法、预测滤波器法。现代谱估计对短序列的估计精度高,同经典谱估计互为补充。在认真学习了现 代谱估计方法后,我选择了
ARTnn
- 输入信号五个基于瞬时信息的特征:零中心归一化瞬时幅度功率谱密度的最大值,零中心归一化瞬时幅度绝对值的标准偏差,零中心非弱信号段瞬时相位非线性分量绝对值标准偏差,零中心非弱信号段瞬时相位非线性分量标准偏差,零中心归一化的非弱信号段瞬时频率绝对值的标准偏差,得到识别出的信号类别,本例为2PSK, 4PSK, GMSK, OQPSK, pi/4DQSK中的一个,还可以看Art网络的扩展性。-input signal instantaneous information on five character
featrue7
- 提取信号七个基于瞬时信息的特征:零中心归一化瞬时幅度功率谱密度的最大值,零中心归一化瞬时幅度绝对值的标准偏差,零中心非弱信号段瞬时相位非线性分量绝对值标准偏差,零中心非弱信号段瞬时相位非线性分量标准偏差,零中心归一化的非弱信号段瞬时频率绝对值的标准偏差,一个信号段的归一化瞬时频率功率谱密度的最大值,根据信号 QPSK 和16QAM在 XI 轴投影的不同表现,提出特征参数。-extract information based on the instan eous features : In the
ARMA_LAST
- This function provides an ARMA spectral estimate which is maximum entropy satisfying correlation constraint (number of poles)and cepstrum constrains (number of ceros) The function requires 3 inputs: Input signal, Order of denonominator, Order
arma_last
- This function provides an ARMA spectral estimate which is maximum entropy satisfying correlation constraint (number of poles)and cepstrum constrains (number of ceros)
hyplas
- ************************************************************************ * * * * * THIS IS THE H Y P L A S 2.0 README FILE * * ----------------- * * * * HYPLAS is a finite element program for implicit small and large * * strain analisys of hyperelast
周期图法谱估计需要对信号序列“截断”或加窗处理
- 周期图法谱估计需要对信号序列“截断”或加窗处理,其结果是使估计功率谱密度为信号序列真实谱和窗谱的卷积,导致误差的产生。本程序分别设计了周期图法,最大熵功率谱估计和Welch法以及它们的对比,最大熵功率谱估计目的是最大限度地保留截断后丢失的“窗口”以外信号的信息,使估计谱的熵最大。-Periodogram spectrum estimation signal sequence needs to " cut off" or add the window handle, the
cwtexe
- 97 law to enhance the classic procedure Ridge wavelet extraction Modulus maximum for the wavelet edge detection Small spectral analysis method mallat classic procedure-97 law to enhance the classic procedure Ridge wavelet extraction Modulus
PSD
- 利用最大值熵法和PSD函数法分别求信号的功率谱密度。-The use of maximum entropy method and the PSD function method for seeking signals in the respective power spectral density.
work1
- 计算一个501×501带状矩阵的最大特征值、最小特征值、谱范数条件数和行列式值。內附完整的问题描述说明文档。-Calculating a 501 × 501 matrix band maximum eigenvalue, the smallest eigenvalue, spectral norm condition number and determinant values. Included a complete descr iption of the problem.
tiqu
- 提取信号七个基于瞬时信息的特征:零中心归一化瞬时幅度功率谱密度的最大值,零中心归一化瞬时幅度绝对值的标准偏差,零中心非弱信号段瞬时相位非线性分量绝对值标准偏差,零中心非弱信号段瞬时相位非线性分量标准偏差,零中心归一化的非弱信号段瞬时频率绝对值的标准偏差,一个信号段的归一化瞬时频率功率谱密度的最大值,根据信号 QPSK 和16QAM在 XI 轴投影的不同表现,提出特征参数。-Extraction based on instantaneous information signal of seven
QPSK_16QAM
- 提取信号七个基于瞬时信息的特征:零中心归一化瞬时幅度功率谱密度的最大值,零中心归一化瞬时幅度绝对值的标准偏差,零中心非弱信号段瞬时相位非线性分量绝对值标准偏差,零中心非弱信号段瞬时相位非线性分量标准偏差,零中心归一化的非弱信号段瞬时频率绝对值的标准偏差,一个信号段的归一化瞬时频率功率谱密度的最大值,根据信号 QPSK 和16QAM在 XI 轴投影的不同表现,提出特征参数。-Extraction based on instantaneous information signal of seven
armalast
- 这个函数用于估算光谱中的最大信息熵,它同时满足了倒频谱的局限和相关谱的局限-This function provides an ARMA spectral estimate which is maximum entropy satisfying correlation constraint (number of poles)and cepstrum constrains (number of ceros)
MESA
- 最大熵谱分析,,希望能够给大家带去帮助。-Maximum entropy spectral analysis, in the hope of bringing everyone to help.
numerical_analysis
- 计算一给定方阵的最小特征值、最大特征值和按模最小的特征值,计算与给定值最接近的特征值,并计算方阵谱范数的条件数和行列式的值,要求设计算法,编程实现计算任务,给出设计思路和计算结果,并进行分析。-Calculation of the minimum for a given matrix eigenvalue, maximum eigenvalue and minimum eigenvalue by mode to calculate the value of the closest to a gi
MUSIC
- music算法:矩阵特征空间分解,在空间谱域求取谱函数最大值,其谱峰对应的角度即是来波方向角的估计值。-music algorithm: Matrix feature space decomposition, in the spatial spectral domain to strike a maximum spectral function, its spectral peaks corresponding to the angle that is DOA angle estimate.
test_MSS
- 遥感图像MSS测度,希望对大家有点帮助-maximum spectral similarity,a useful code
Spectral
- 用最大熵法作出N=32信噪比S/N=30db,两正弦信号的归一化频率的情况下,编程计算出该信号的最大熵谱估计。-Made using the maximum entropy method N = 32 signal to noise ratio S/N = 30db, the case of two sinusoidal signals normalized frequency programmed to calculate the maximum entropy spectral estima
new folder
- Wireless networking is the latest networking technology.Wireless network has few more advantages as compared to the wired Network. In this article I will explain to you comparison between Wireless and Wired network.
