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sparfilt
优点:1.对于信噪比高的信号滤波效果好;
% 2.对于边沿的保护强过阈值滤波,不会产生阈值滤波情况下的过于平滑与Gibbs现象。
%缺点:1.由于对边沿信号没做任何处理,所以边沿可能会有脉冲噪声保留下来;
% 2.计算相关系数中,如果计算出来的小波系数点位置偏差大,则相关系数计算受影响;
% 3.需要迭代运算,迭代的噪声能量阈值选取很重要,这里以开始段无信号处估计噪声;
% 4.需要迭代运算,所以运算量比阈值法大;
% 5.受分解层次影响,在大尺度上小波系数点位置偏差更大,相关系数计算不准确。
%需要具体调整的地方:1.分解的尺度;()
- 2008-03-28 10:26:51下载
- 积分:1
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yjjjmA
2014研究生数学建模竞赛A题及相关资料,供大家学习交流(2014 Graduate Mathematical Contest in Modeling A title and related information , for we learn
)
- 2014-09-19 10:20:07下载
- 积分:1
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facegamacepro
A face recognition program in matlab
- 2013-01-30 21:26:54下载
- 积分:1
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LMFnlsq2testPDF
L-M(Levenberg—Marquardt)是一种非线性最优化里面最常用的方法之一,改方法能快速而准确的逼近收敛值。本文简述了改方法的操作原理和具体运用,如可以方便的用于有约束与无约束最优化的求解。(L- M (Levenberg- Marquardt) is a kind of nonlinear optimization inside one of the most commonly used method, change method can fast and accurate approximation convergence value.This paper briefly describes the operating principle of change method and concrete application, such as easy to solve constrained and unconstrained optimization.)
- 2014-11-12 22:01:25下载
- 积分:1
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Eng_Pouya
Reduced model of ieee 39 bus test system in MATLAB
- 2014-12-15 17:28:13下载
- 积分:1
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noise-mudulation
根据干扰信号波形样式的不同,压制性干扰可分为噪声调幅干扰、噪声调频干扰、噪声调相干扰。就是用噪声或类似噪声的干扰信号遮盖或淹没有用信号,阻止雷达检测目标信息。它的基本原理是:任何一部雷达都有外部噪声和内部噪声,雷达对目标的检测是在这些噪声中进行的,其检测又是基于一定的概率准则的。一般来说,如果目标信号能量S与噪声能量N相比(信噪比S/N),超过检测门限D,则可以保证一定的虚警概率Pfa的条件下达到可检测目标回波所要求的检测概率Pd,简称为可发现目标,否则便称为不可发现目标。(Blanket Jamming can be divided into different styles according to the interference signal waveform, noise AM interference, noise FM jamming noise phase modulation interference. With noise or noise-like interference signal covered or submerged useful signal prevent radar detection target information from. Its basic principle is: any one radar has the external noise and the internal noise of the radar target detection in these noise detection is based on a certain probability criterion. Generally, compared to if the target signal energy S and noise energy N (signal-to-noise ratio S/N), more than the detection threshold D, you can guarantee reach target echo can be detected under the conditions of a certain false alarm probability Pfa requirements detection probability Pd, referred to can be found in the target, otherwise known as not finding the target.)
- 2012-11-28 20:27:15下载
- 积分:1
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solarradiationHcd
本程序用来计算太阳能的直射辐射,晴天模型(simulation the direct radiation of solar)
- 2012-05-03 14:08:52下载
- 积分:1
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FP-recognition-source-code
fingerprint recognition matlab code
- 2011-06-16 16:57:30下载
- 积分:1
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MATLAB
MATLAB教程:有入门介绍,符号计算,数值计算,数组,可视化编程等等(MATLAB Tutorial: Getting Started with introduction, symbolic computation, numerical computation, arrays, visual programming, etc.)
- 2011-10-30 11:38:25下载
- 积分:1
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Apartment_Management
Apartment Management
- 2014-01-12 16:45:56下载
- 积分:1