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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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chop recognition algorithm source, mainly from the original image from the backg...
印章识别算法源码，主要从原图像中提取各分量进行背景去除，然后提取特征-chop recognition algorithm source, mainly from the original image from the background component removed, and then extracting features
- 2022-03-10 15:06:50下载
- 积分：1
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fft2()的实现
本代码实现了图片2维的快速傅里叶变换，能够很好的算出结果；经过本人测试，效果很好。希望到家下载，互相学习学习。
- 2022-06-19 17:40:47下载
- 积分：1
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- 2022-11-17 08:10:03下载
- 积分：1
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一个用VC编写的图形界面，学习参考有用。
一个用VC编写的图形界面，学习参考有用。-a VC prepared by the graphical interface, learning useful reference.
- 2022-06-26 20:56:07下载
- 积分：1
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基于bresenham的画圆算法
基于bresenham的画圆算法-based on the algorithm Circle
- 2022-03-05 22:39:55下载
- 积分：1
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图像检索的一个检索算法（基于内容）。
图像检索的一个检索算法（基于内容）。-Image Retrieval of a search algorithm (based on the content).
- 2022-05-25 07:38:19下载
- 积分：1
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n皇后算法，多边形裁减，正方体旋转，三角形的绘制与填充，画虚的直线和曲线...
n皇后算法，多边形裁减，正方体旋转，三角形的绘制与填充，画虚的直线和曲线-n Queen s algorithm, polygon reduction, cube spins, drawing a triangle with the filling, painting imaginary straight lines and curves
- 2023-01-17 18:25:04下载
- 积分：1
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画反锯齿直线、矩形、弧线、曲线的demo，
画反锯齿直线、矩形、弧线、曲线的demo，-Anti-aliased line drawing, rectangle, arc, curve of the demo,
- 2022-01-25 23:49:28下载
- 积分：1
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Ageia s PhysX (well
Ageia s PhysX(著名的游戏物理库) D3D 9使用代码演示。由于PhysX物理库使用OpenGL代码实现图形着色，从而使许多用DirectX 3D的程序员不能使用/读懂demo代码，这是使用D3D着色引擎重新写的一些demo代码。-Convex Geometry（带执行文件）-Ageia s PhysX (well-known game physics library) D3D 9 demo using the code. PhysX physics library as a result of the use of OpenGL graphics rendering code so that many use the DirectX 3D programmer can not use/read demo code, which is the use of D3D shaders to re-write some demo code.-Convex Geometry (with the implementation of document)
- 2022-05-10 22:27:51下载
- 积分：1
