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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
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GF2_DLL
说明： Download and Install Matlab r2015a Full - Duration
- 2019-09-25 10:56:43下载
- 积分：1
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仿真技术在光纤通信实验教学中的应用
通过两个例子，将Optisystem和matlab这两个软件结合进行光学仿真，两个例子分别为光波频率右移和光波幅度调制。通过这两个例子，能很好的理解这两个软件的协同仿真。上传的文件包括文献和源码，还有optisystem的osd文件，文件很全。(Two examples are used to combine the two software Optisystem and MATLAB for optical simulation. The two examples are the right shift of the light frequency and the modulation of the amplitude of the light wave. Through these two examples, we can well understand the collaborative simulation of these two software. Upload files, including documents and source code, as well as the optisystem OSD file, the document is very complete)
- 2020-11-28 15:29:29下载
- 积分：1
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klt
说明： MATLAB 子空间语音增强，输入一个wav，生成一个增强语音wav(Matlab
subspace speech enhancement,
input a WAV, generate an enhanced voice wav)
- 2020-04-21 16:55:17下载
- 积分：1
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YouToo
说明： sip开发相关资料集,为sip开发人员提供了很丰富的资料,适合初学者.
- 2010-03-23 17:00:26下载
- 积分：1
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Satellite
自己需要给出坐标，GPS测距。主要是实现了基于maltab测距GPS测距原理(you should give coordinates, GPS ranging)
- 2017-08-12 11:22:35下载
- 积分：1
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TD-SCDMA物理层原理
说明： TD-SCDMA物理层原理，了解物理层技术，了解信道编码的基本原理。(TD-SCDMA Physical Layer Principle)
- 2020-06-25 19:40:02下载
- 积分：1
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bettprprovide
一个C++的简单的原代码,可以提供学习比较好,大家可以下了(C of a simple code, can provide a better learning, we can go down)
- 2018-12-30 08:51:43下载
- 积分：1
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Schmidl Cox ferr
OFDM 同步技术研究 Schmidl_Cox算法 定时估计加频偏估计 matlab程序(The the OFDM synchronization technology research Schmidl_Cox algorithm timing and frequency offset estimation matlab program is estimated)
- 2012-10-15 07:35:44下载
- 积分：1
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AGC
说明： 数字AGC仿真代码适合于基础的了解数字控制模块(Digital AGC simulation code is suitable for understanding the basis of the digital control module)
- 2008-10-16 17:22:19下载
- 积分：1
