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说明： 认知无线电技术的提出是为提高频谱利用率，而认知无线实现的关键技术是频谱感知，众所周知协作检测提高了衰落环境中认知用户系统检测的性能，该文章是基于协作检测提出新的检测方案，利用了双门限方法提高了系统性能，兼顾带宽有限和增强性能两个方面，是基于门限检测的协作检测性能优化的前提。对以后门限优化协作检测非常有用。(In this paper, we employ a double threshold method in energy detector to perform spectrum sensing, while a fusion center in the cognitive radio network collects the local decisions and observational values of the secondary users, and then makes the final decision to determine whether the primary user is absence or not. Simulation results will show that the spectrum sensing performance channels is improved significantly under the proposed scheme as opposed to the conventional method.)
- 2010-04-14 21:02:35下载
- 积分：1
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fuzzy-controller-program
说明： 在MATLAB环境下，实现模糊控制，在必要的地方都有注释，适合研究模糊控制(In the MATLAB environment, fuzzy control, where necessary, have the notes for the fuzzy control)
- 2011-04-17 12:32:45下载
- 积分：1
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pinghuaaruihua
用巴特沃兹低通（高通）、高斯低通（高通）、拉普拉斯高通滤波器对图像进行平滑（锐化）处理，以及Unsharp mask与highboost filtering(Butterworth low-pass (high-pass), Gaussian low-pass (high-pass), Laplacian high-pass filter on the image smoothing (sharpening) processing, and Unsharp mask highboost filtering)
- 2013-04-08 17:00:12下载
- 积分：1
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Adaptive-Threshold
说明： 自动阈值分割，matlab版，可以参考学习，两个.m文件。(Automatic threshold segmentation, matlab version, can refer to the study, two. M file.)
- 2009-07-24 09:12:38下载
- 积分：1
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MATLABofdm
纯ofdm仿真代码，QAM调制，有注释，可运行(Pure ofdm simulation code, QAM modulation, with annotations, can run)
- 2010-05-24 10:20:13下载
- 积分：1
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newton
数值分析 孙志忠 上机题 牛顿法,计算机(Numerical analysis of Newton' s method RAIL-on title)
- 2014-11-22 19:31:46下载
- 积分：1
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MATLAB
matlab本科 长江大学 地球物理与石油资源学院 ppt(matlab Yangtze University
Undergraduate courseware)
- 2013-04-01 22:37:28下载
- 积分：1
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variogramfit
断层插值函数代码，采用matlab软件环境编制(Fault code matlab interpolation function, the soft environment system
)
- 2013-11-27 23:30:51下载
- 积分：1
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automatic-control--MATLAB
有关自动控制原理的相关MATLAB例程。使用MATLAB进行求解相关的问题，如：根轨迹，波特图。(The relevant MATLAB routines for the automatic control principle. Solve related problems using MATLAB, such as: root locus, Bode plot.)
- 2016-12-27 11:25:52下载
- 积分：1
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activeContoursSnakesDemo
本演示实现了主动轮廓模型由Kass等人提出。
要运行它的图形用户界面
1。基于MATLAB型引导提示。
2。关于“到现有的图形用户界面，点击”
3。选择在与本文件相同的目录snk.fig文件
4。按一下上方的绿色箭头启动图形界面
一旦GUI已经启动，您可以通过使用蛇
1。点击“新形象”，并加载输入图像。提供的样品图像。
2。平滑参数设置“西格玛”或保留其默认值并点击“过滤器”。这将平滑图像。
3。只要你点击“过滤器”，头发会出现交叉，用他们和你左击鼠标，您可以选择在图像上的初始轮廓的位置。会出现一个红色圆圈到处您单击并在多数情况下，你应该单击对象周围的一切你想要的部分。最后一点，必须挑选使用右键单击，以阻止更多的积分为MATLAB的要求。
4。设置各种蛇参数（在能源方面的相对权重的蛇目标函数）或离开它们的默认值，然后按一下他们“迭代”按钮。蛇会出现和移动，因为它收敛到它的低能量状态。(This demo implements the Active Contour Models as proposed by Kass et al.
To run it with GUI
1. Type guide on the matlab prompt.
2. Click on "Go to Existing GUI"
3. Select the snk.fig file in the same directory as this file
4. Click the green arrow at the top to launch the GUI
Once the GUI has been launched, you can use snakes by
1. Click on "New Image" and load an input image. Samples image are provided.
2. Set the smoothing parameter "sigma" or leave it at its default value and click "Filter". This will smooth the image.
3. As soon as you click "Filter", cross hairs would appear and using them and left click of you mouse you can pick initial contour location on the image. A red circle would appear everywhere you click and in most cases you should click all the way around the object you want to segment. The last point must be picked using a right-click in order to stop matlab for asking for more points.
4. Set the various snake paramete)
- 2010-07-05 11:54:13下载
- 积分：1
