Description: 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，我选择了现代谱估计中的AR模型法的仿真作为题目。下面给出AR模型的相关理论和仿真实现。-Power Spectral Estimation of very extensive, in all disciplines and fields of application of a great deal of attention. The "modern signal processing" on the curriculum of classical and modern spectral estimation spectrum is estimated that the two types of spectrum estimation method; Classical spectrum estimation is based on Fourier transform, although high computing efficiency advantages, but also low-resolution spectrum Sidelobe serious leakage of long sequences have good estimates. In order to overcome the classic shortcomings of the spectrum estimation, there have been a pair of modern spectral estimation methods. Modern spectral estimation is the random process model parameters based on the maximum likelihood estimation, maximum entropy method, AR model, forecast filter. Spe Platform: |
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Description: 利用最大熵方法求图像二值化的阈值
输入的图像名称，读取名称是M的图像文件
统计各个灰度级出现的概率
-Using the maximum entropy method for image binarization threshold input image name, the name is M read image files in various gray-scale statistical probability Platform: |
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Description: MATLAB实现功率谱估计的程序最大熵谱法,Brug法和Levinson法。-MATLAB realize the power spectrum estimation procedure for maximum entropy spectral method, Brug law and Levinson Law. Platform: |
Size: 2048 |
Author:贺桀 |
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Description: 用于实现加了噪声的灰度图像阈值分割的一维最大熵方法，matlab源程序-Used to realize the addition of noise gray image threshold segmentation of the one-dimensional maximum entropy method, matlab source Platform: |
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Author:coco |
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Description: 最大熵直接迭代法,维纳滤波和盲恢复对水平方向匀速直线运动造成的模糊图像的恢复研究-Direct iterative maximum entropy method, Wiener filtering and blind restoration of the horizontal direction caused by uniform linear motion blurred image restoration Platform: |
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Author:田艳 |
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Description: MATLAB的程序最大熵谱法,Brug法和Levinson法MATLAB procedures maximum entropy spectrum, Brug law and the law Levinson-MATLAB procedure for maximum entropy spectral method, Brug law and Levinson Law MATLAB procedures maximum entropy spectrum, Brug law and the law Levinson Platform: |
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Author:walkinghill |
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Description: matlab,功率谱估计，包括PSD,DFT,最大熵等方法-matlab, power spectrum estimation, including PSD, DFT, such as maximum entropy method Platform: |
Size: 3072 |
Author:air |
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Description: 最大熵图像复原方法，效果还好，这是最近努力的结果，不过或许需要适当的改进之后会有更好的结果，分享一下-Maximum entropy image restoration method, the effect Fortunately, this is the result of recent efforts, but may need to be appropriate to improve after the better results, share Platform: |
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Author:重大包 |
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Description: 基于像素点的全局阈值法求图像的分割
实现方法有五种：
最小极值法，最优阈值法，最大方差方法，最大熵法，迭代法-Pixel-based global threshold method for image segmentation method there are five: the smallest extreme value method, the optimal threshold method, the largest variance method, the maximum entropy method, iterative method Platform: |
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Author:余小勇 |
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Description: 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. Platform: |
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Author:chenjuntang |
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Description: 使用最大熵法和二维最大商法实现医学图像的分割-Using the maximum entropy method and the largest commercial two-dimensional segmentation of medical images Platform: |
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Author:lee |
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Description: 图像分割是把图像划分成具有实际意义的互补交迭的区域的集合。在图像分割之前，图像区域的数目未知，而在分割后各个区域同时满足均匀性和连通性的条件，故图像分割是一个复杂的过程，目前大多数研究都是针对某一类型图像或者某一具体应用的分割。图像阈值化分割的基本思想是确定一个阈值，然后把每个像素点的像素值和阈值相比较，根据比较的结果把像素划分为两类，前景(1)或背景(0)。该方法的关键是确定一个最优的阈值。常用的阈值确定方法有直接门限法、类间最大方差法(otsu法)、分水岭算法、最小误差法、最大熵法等。该段代码就是图像的阈值分割。-The image segmentation is divided into the practical significance of the emerging area of complementary set. In the image segmentation, before the number of image region, the unknown, and after each area in division at the same time satisfy the uniformity and connectivity condition, so the image segmentation is a complicated process now, most research are for a certain type image or a particular application of the division. Image threshold segmentation of the basic idea is to determine a threshold, then put each pixel threshold value of the pixels and compared, according to the result of the comparison the pixel divided into two categories, the prospect (1) or background (0). This method is the key to determine an optimal threshold. Commonly used method to determine the threshold value of direct threshold method, the largest of the variance between method (otsu method), watershed algorithm, the minimum error method, the maximum entropy method, etc. When the code is image threshold segm Platform: |
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Author:杨莎莎 |
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Description: matlab中的一些参数建模的方法，例如AR模型，ARMA模型，周期图法，多窗口法，最大熵法，以及小波分析的应用举例。-Some of the parameters of the matlab modeling methods, such as AR model, ARMA model, a periodic chart, window method, the maximum entropy method, as well as the application of wavelet analysis, for example.
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Author:施利利 |
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Description: 用于利用最大熵法求解数据资料服从的分布类型。并应用最小二乘法求解模型以得到最优解-Using the maximum entropy method for solving the data distribution type of obedience. And apply the least squares method to obtain the optimal solution to solve the model Platform: |
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Author:reed |
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Search - matlab maximum entropy method