登录
首页 » matlab » xiaobofenxi

xiaobofenxi

于 2010-05-06 发布 文件大小:329KB
0 311
下载积分: 1 下载次数: 7

代码说明:

  小波工程主要包括一两部分:一、连续小波分析的应用,二、离散小波分析的应用。下面分两个部分分别说明这两个程序的分析结果: 一、连续小波分析: 所用信号为自己构造的三角波和正弦波叠加的信号:s=(-1).^(floor(n/50)+1).*(mod(n,50)-25)*2-(-1).^(floor(n/17)+1).*(mod(n,17)-8.5)*3+1*cos(n/2)*10。其中第一项(-1).^(floor(n/50)+1).*(mod(n,50)-25)*2为一周期为100的锯齿波,第二项-(-1).^(floor(n/17)+1).*(mod(n,17)-8.5)*3为一周期为34的锯波,第三项为一周期为4*pi正(余)弦波。另外叠加了一幅度为5的噪音信号。 程序包包含程序与说明文档。(Wavelet works mainly consists of two parts: first, the application of continuous wavelet analysis, II, Discrete Wavelet Analysis.)

下载说明:请别用迅雷下载,失败请重下,重下不扣分!

发表评论

0 个回复

  • pcnn
    利用pcnn,每当有一批像素对应的神经元点火,对像素值进行一次修正。第n次点火的所有神经元用矩阵B(n)表示, 已经点火的像素位置标记为‘1’,未点火的标记为‘0’。通过一个3*3的模板滑过B(n),判断若模板内的值全为‘1’或全为‘0’, 则这些像素值不进行处理,否则若模板中心的值为‘1’,则增加该位置的像素值的大小,中心值为‘0’,则减小像素值。该功能由xiugai(B,K)函数实现 Beta取负值来抑制周围的神经元点火,因为输入pcnn(X)的是模糊图像,抑制之后使处理的像素值更加接近原图像的像素值(抑制参数通过试验确定,并不精确) 总之运行结果只是对像素值变化较大的边缘区域进行了像素值的修正。 通过不断调整参数使峰值信噪比有所升高,但是升高得不是太多(Use pcnn, whenever a group of pixels corresponding to the firing of neurons, a correction value for the pixel. Ignition of all the n-th neuron matrix B (n) represents, Already ignition pixel position labeled 1 , unfired labeled 0 . By a 3* 3 templates over the B (n), determines if the value within the template are all 1 or all 0 , These pixel values are not processed, otherwise the value if the template center 1 , then the increase in the size of the pixel values of the position, the center value of 0 , the pixel value is reduced. This function is implemented by xiugai (B, K) function Beta is a negative value around the element to inhibit neuronal firing, because the input pcnn (X) is a blurred image, the pixel values of inhibition after treatment of the pixel value closer to an original image (suppression parameter determined by experiment, is not exact) Results only in short run large changes in the edge region of the pixel values of the corrected pixel values. )
    2014-12-01 09:16:42下载
    积分:1
  • oc
    说明:  提取opencart产品名称里的属性信息到目录属性里,实现opencart的目录筛选功能。具体属性需添加到文件内,具体看文件说明。(Extraction of Opencart product name in the attribute information to the directory attributes, implementation of Opencart directory screening function. The specific attributes need to add to a file, see the specific documentation. )
    2015-01-07 16:51:54下载
    积分:1
  • BPneural network
    说明:  BP_Adaboost模型即把BP神经网络作为弱分类器,反复训练BP神经网络预测样本输出,通过Adaboost算法得到多个BP神经网络弱分类器组成的强分类器,利用此方法设计出强分类器。(The BP_Adaboost model uses the BP neural network as a weak classifier, repeatedly trains the BP neural network to predict the sample output, and uses the Adaboost algorithm to obtain a strong classifier composed of multiple BP neural network weak classifiers. This method is used to design a strong classifier.)
    2019-02-26 14:38:11下载
    积分:1
  • fenchatu
    非线性动力系统中分叉图用来定性的表示系统行为的演化,本代码中ode1.m定义了一个经典的Lorenz系统,sode3.m对该系统计算并画出了参数敏感区的分叉图。(Nonlinear dynamic system bifurcation diagram used to express qualitative evolution of system behavior, the code defines a ode1.m classical Lorenz system, sode3.m of the system to calculate and draw the sensitive areas of the bifurcation parameter Fig.)
    2008-05-21 11:17:17下载
    积分:1
  • kongying
    实现bpsk的调制解调 ,有图,基于matlab仿真 (Achieve bpsk modulation and demodulation, a map)
    2011-06-09 22:01:47下载
    积分:1
  • pap-smear-data
    data analysis of pap smear data reqiuired in analysis of pap smear images
    2013-04-06 13:58:47下载
    积分:1
  • 元胞自动机模型,模拟高层建筑火灾疏散场景
    用蚁群算法做的人口疏散模型,用于消防疏散危机时的仿真系统(sxabxnjsxnxnl;smmskx)
    2021-01-30 18:08:37下载
    积分:1
  • CCC_PID4_LOAD0
    自搭建-4相开关磁阻电机电流斩波控制仿真,有速度闭环。(Since the phase switched reluctance motor structures-4 current chopping control simulation, the speed loop.)
    2021-04-27 14:38:44下载
    积分:1
  • EZW
    mbedded Zerotrees of Wavelet transforms (EZW) is a lossy image compression algorithm. At low bit rates, i.e. high compression ratios, most of the coefficients produced by a subband transform (such as the wavelet transform) will be zero, or very close to zero. This occurs because "real world" images tend to contain mostly low frequency information (highly correlated). The locations where high frequency information does occur (such as edges in the image) this is particularly important in terms of human perception of the image quality, and thus must be represented accurately in any high quality coding scheme.
    2014-02-18 20:06:01下载
    积分:1
  • flycontrol
    飞控程序加仿真模块 简单实用 可以控制高度的简单程序(Flight Control program plus simple and practical simulation module can control the height of a simple program)
    2016-03-12 11:33:58下载
    积分:1
  • 696516资源总数
  • 106914会员总数
  • 0今日下载