-
OFDM信号频谱感10
说明： 前已提出的频谱感知方法主要包括匹配滤波器检测、 能量检测、 循环平稳特征检测以及多分辨率频谱感知. 这些方法均为单节点感知方法.然而，在阴影和深度衰落情况下， 单个节点的感知结果并不可靠， 因此， 需要对多个节点的感知结果进行融合，以提高检测可靠性， 即协作感知技术. 文献采用“或” 准则对各个 CR 感知结果进行融合. 文献则提出了基于 D-S 证据理论的协作频谱感知算法，虽然该算法的性能比“或” 准则或“与”准则要好， 但需要存储大量历史信息， 算法的计算复杂度也很高. 文献中分析了采用似然比检测(likelihood ratio test， LRT) 的软判决与采用“与” 准则的硬判决的性能， 结果表明采用软判决的协作感知性能更优(Previously proposed spectrum sensing methods mainly include matched filter detection, energy detection, cyclostationary feature detection and multi-resolution spectrum sensing. These methods are all single node sensing methods. However, in the case of shadow and deep fading, the sensing results of single node are not reliable, so, It is necessary to fuse the sensing results of multiple nodes to improve the detection reliability, i.e. cooperative sensing technology. In the literature, "or" criterion is used to fuse the CR sensing results. In the literature, a cooperative spectrum sensing algorithm based on D-S evidence theory is proposed. Although the performance of the algorithm is better than "or" criterion or "and" criterion, a large amount of historical information needs to be stored, The computational complexity of the algorithm is also very high. In the literature, the performance of the soft decision based on the likelihood ratio test)
- 2020-11-19 21:19:37下载
- 积分：1
-
led1
点亮led流水灯，通过调用锁相环，可以更改对应的时钟。(Lighting the LED pipelining lamp, the corresponding clock can be changed by calling the phase-locked loop.)
- 2020-06-16 07:00:01下载
- 积分：1
-
antenna-array-self-tuning-algorithm
通讯类：天线阵列自校正算法研究，天线阵列自校正算法研究，天线阵列自校正算法研究，天线阵列自校正算法研究(Communications: antenna array self-tuning algorithm, antenna array self-tuning algorithm, antenna array self-tuning algorithm, antenna array self-tuning algorithm)
- 2013-03-20 13:05:58下载
- 积分：1
-
8456457457
手机RSS阅读器(html5)，应用程序编程源码，很好的参考资料。(Mobile phone RSS reader (HTML5), application programming source code, a good reference.)
- 2013-11-09 17:41:16下载
- 积分：1
-
path loss
无线信道建模，路径损耗及正态阴影模型源代码，可出图，(Path loss Wireless channel modeling)
- 2019-05-07 17:39:48下载
- 积分：1
-
Modbus
用C#实现ModBus读写功能，用作客户端读写ModBus-TCP server数据(Modbus read and write functions in C#)
- 2013-09-02 15:08:53下载
- 积分：1
-
RTCA-DO-229D
RTCM协议说明文档，介绍RTCM协议详细内容，帧结构。(rtcm frame )
- 2016-11-14 15:45:52下载
- 积分：1
-
Bluetooth
CBluetoothDlg dlg
m_pMainWnd = &dlg
INT_PTR nResponse = dlg.DoModal()
- 2010-01-14 12:08:18下载
- 积分：1
-
gbcemu
说明： 手机游戏模拟器 对于开发手机游戏的朋友来说很难得 。只有源代码 没有文档(Mobile phone game emulator for the development of mobile games for a rare friend. Not only the source code documentation)
- 2008-09-15 15:22:13下载
- 积分：1
-
Principles-Of-Communication
通信系统仿真原理与无线应用 《通信系统仿真原理与无线应用》系统地介绍通信系统的设计、分析和仿真方法，还提供了大量极具参考价值的仿真实例。(Simulation principles of communication systems and wireless applications. "A systematic introduction to the design, analysis and simulation of communication systems, it also provides a large number of simulation examples of great reference value.)
- 2012-04-16 09:58:48下载
- 积分：1
