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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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正方体透视投影变换,可通过鼠标及键盘实现动画效果
正方体透视投影变换,可通过鼠标及键盘实现动画效果-cube perspective projection transform, through mouse and keyboard to achieve animation effects
- 2023-06-25 01:20:03下载
- 积分：1
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图像处理技术已经渗透到人类生活的各个领域并得到越来越多的应用，图像处理所涉及的图像格式有很多种，如TIF、JEMP、BMP等等，工程应用中经常要处理256级的灰...
图像处理技术已经渗透到人类生活的各个领域并得到越来越多的应用，图像处理所涉及的图像格式有很多种，如TIF、JEMP、BMP等等，工程应用中经常要处理256级的灰度BMP图像，如通过黑白采集卡采集得到的图像-image processing technology has been integrated into all areas of life and to be more and more applications, image processing involved in the format images can take many forms, such as TIF, JEMP, BMP, etc., engineering applications often have to deal with 256 Gray BMP images, such as through black-and-white collection in acquisition card The images
- 2023-01-19 23:10:03下载
- 积分：1
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一些重要的东西，图像编程必用
一些重要的东西，图像编程必用-some important things, certainly with images Programming
- 2022-03-03 08:53:33下载
- 积分：1
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晕线多边形填充，课堂实验题目，可以画多边形，也可以加载多边形文件...
晕线多边形填充，课堂实验题目，可以画多边形，也可以加载多边形文件-Halo line polygon fill, classroom test subject, you can draw polygons, you can also load the polygon file
- 2023-05-18 12:55:04下载
- 积分：1
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CC2431单片机原理图，支持802.15.4Mac层协议，在多种无线应用中作为无线传输模块。...
CC2431单片机原理图，支持802.15.4Mac层协议，在多种无线应用中作为无线传输模块。-CC2431 single-chip schematic to support 802.15.4Mac layer protocol, in a variety of wireless applications as wireless transmission module.
- 2023-05-19 03:05:04下载
- 积分：1
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VC++的信息波形显示程序，输入波形后，可以设置不同的编辑类型：NRZ法编码、单极归零码、双级非归零、双极归零码、AMI法编码、HDB3编码法等，并根据这些设置...
VC++的信息波形显示程序，输入波形后，可以设置不同的编辑类型：NRZ法编码、单极归零码、双级非归零、双极归零码、AMI法编码、HDB3编码法等，并根据这些设置选项生成波形图，软件界面友好，像是很专业的软件，如上图示。
-VC++ waveform display program information, input waveform, you can set different types of editors: NRZ encoding method, unipolar NRZ, dual-stage non-zero, bipolar NRZ, AMI law coding, HDB3 encoding method, etc. and, based on these settings option to generate a waveform diagram, the software user-friendly, such as very professional software icons above.
- 2023-06-17 21:15:03下载
- 积分：1
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matlab中读取*.txt文件数据程序，*.txt文件
可以是串口调试助手等采集到的16进制数据。...
matlab中读取*.txt文件数据程序，*.txt文件
可以是串口调试助手等采集到的16进制数据。-Use Matlab to open*.txt files and can open all kinds of*.txt files shch as 16bit files come from debug the assistant with one bunch of mouths
- 2022-04-12 14:53:48下载
- 积分：1
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图像融合论文的两个论文
图像融合论文的两个论文-image fusion of the two papers papers
- 2022-06-16 14:42:22下载
- 积分：1
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similar brush graphics controls source code
类似画笔的绘图控件源代码-similar brush graphics controls source code
- 2022-08-16 18:12:50下载
- 积分：1
