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The spectrum sensing of a wideband frequency range is studied by dividing it int...
Cognitive radio frequency spectrum detection-The spectrum sensing of a wideband frequency range is studied by dividing it into multiple subbands.
It is assumed that in each subband either a primary user (PU) is active or absent in a additive white Gaussian
noise environment with an unknown variance. It is also assumed that at least a minimum given number of
subbands are vacant of PUs. In this multiple interrelated hypothesis testing problem, the noise variance is
estimated and a generalised likelihood ratio detector is proposed to identify possible spectrum holes at a
secondary user (SU). Provided that it is known that a specific PU can occupy a subset of subbands
simultaneously, a grouping algorithm which allows faster spectrum sensing is proposed. The collaboration of
multiple SUs can also be considered in order to enhance the detection performance. The collaborative
algorithms are compared in terms of the required exchange information among SUs in some collaboration
- 2022-04-01 19:11:06下载
- 积分：1
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将图片转换为BMP图形，J2SE5.0适用
将图片转换为BMP图形，J2SE5.0适用-photos converted to BMP graphics, J2SE 5.0 application
- 2023-08-25 14:10:03下载
- 积分：1
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MATLAB 7.x界面设计与编译技巧。包括：第二篇，图形化使用者界面；第三篇，深入活用MATLAB Compiler....
MATLAB 7.x界面设计与编译技巧。包括：第二篇，图形化使用者界面；第三篇，深入活用MATLAB Compiler.-MATLAB 7.x interface design and build skills. Include: second, a graphical user interface third part, in-depth utilize MATLAB Compiler.
- 2022-01-29 04:34:17下载
- 积分：1
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类似mschart的功能,完成柱状图象的生成,
类似mschart的功能,完成柱状图象的生成,-mschart similar function as a complete column generation,
- 2022-01-25 23:48:17下载
- 积分：1
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right image mask operation
对图像进行掩摸操作-right image mask operation
- 2022-04-21 15:52:37下载
- 积分：1
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一种蚁群优化的边缘检测算法，可实现！用matlab编写
一种蚁群优化的边缘检测算法，可实现！用matlab编写-An ant colony optimization algorithm for edge detection can be realized! Prepared using matlab
- 2022-02-10 05:12:05下载
- 积分：1
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image processing, Matlab, had, a stopgap
图象处理,matlab,不得不上,充数
-image processing, Matlab, had, a stopgap
- 2022-07-27 15:52:21下载
- 积分：1
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基本的图像处理
basic image prossesing
- 2022-07-14 07:18:44下载
- 积分：1
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用bezier曲线绘制的线框，可实现线框的移动、旋转并可改变线框的形状...
用bezier曲线绘制的线框，可实现线框的移动、旋转并可改变线框的形状-with bezier curve drawing the frame, the frame can achieve mobile, rotating frame can change the shape
- 2023-05-20 07:20:04下载
- 积分：1
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图形学中的纹理贴图程序
图形学中的纹理贴图程序-graphics textures of procedures
- 2022-09-13 06:30:02下载
- 积分：1
