-
ChannelModelsforFixedWirelessApplications
无线信道模型的介绍,WIMAX工作组文档,对典型信道模型进行了描述,文中含SUI信道的MATLAB仿真代码(Wireless channel model introduction, WIMAX Working Group document, on a typical channel model is described, the text contains SUI channel MATLAB simulation code)
- 2009-11-06 11:53:42下载
- 积分:1
-
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
-
pca_cfa_denoising
denoising method. My friend give this to me. I hope it will be helpful to others.
- 2009-09-10 03:57:02下载
- 积分:1
-
LMI
Matlab求解线性矩阵不等式的例子和程序(Solove linear matrix inequalities in Matlab.)
- 2013-07-18 22:30:14下载
- 积分:1
-
louyufangzhen
一般楼宇信号衰减模型的仿真 其中带有界面支持鼠标操作(normal signal attenuation model simulation which interface with mouse support operation)
- 2007-04-09 17:13:16下载
- 积分:1
-
downsample
说明: 关于降采样和升采样的代码展示,可以在MATLAB中运行调试,能够给出结果(The code display of down sampling and up sampling can be run and debugged in MATLAB)
- 2020-03-26 20:14:43下载
- 积分:1
-
MicrosoftWord4
可以看到
变步长未必会需要更长的时间
因为它是一种自适应的方式
如果某阶段情况理想的话
就会用最大步长来做
那就会很快
(can see variable step may not need a longer period of time because it is an adaptive way if a certain phase of the the ideal would be the greatest step will be to do it quickly)
- 2007-04-17 16:07:31下载
- 积分:1
-
NJW
聚类分群方法,使用此程序处理数据可以避免高维数据的奇异性问题,然后使用配套的kmeans方法进行处理(Cluster grouping method to process data using this program to avoid the singularity problem of high-dimensional data, and then use the matching method for processing kmeans)
- 2014-12-03 10:41:04下载
- 积分:1
-
Sankhya
SANKHYA is an any base to any base convertor .
- 2014-12-22 16:19:25下载
- 积分:1
-
exif
自定义结构体 对照片的一些属性信息 进行赋值 并可以输出其值 可以扩展(set and input some information of attibute )
- 2009-11-19 18:33:48下载
- 积分:1