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PN码同步仿真实验
基于matlab的PN码的同步仿真，包含详细代码，可以直接运行(Matlab based PN code synchronization simulation, including detailed code, can run directly)
- 2021-03-17 19:29:20下载
- 积分：1
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FFT
语音信号处理的fft算法
编程实现了FFT算法，运用编写的FFT程序对信号进行FFT计算和还原，待分析的信号是一段音乐，与Matlab的FFT函数进行了比较并设计系统页面
(FFT algorithm for speech signal processing
FFT programming algorithm, the use of the preparation of the FFT program to calculate and restore the signal FFT, the signal to be analyzed is a piece of music, and the Matlab function of the FFT and the design of the system page)
- 2017-04-09 09:20:18下载
- 积分：1
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GMSK
GMSK基带信号的调制解调基于SIMULINK的系统，计算误码率，(Modulation and Demodulation of GMSK Baseband Signal)
- 2019-04-18 15:33:07下载
- 积分：1
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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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Multiphase filter
运用matlab仿真实现多相滤波结构，带有中文注释，简单易懂。可以运行直接观察波形(Using MATLAB simulation to achieve polyphase filter structure, with Chinese annotation, easy to understand. Direct observation waveforms can be run)
- 2018-05-14 14:49:30下载
- 积分：1
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communication
说明： cdma系统matlab仿真，在两个用户的背景下采用了直接扩频码实现扩频解扩，bpsk调制解调，程序已经运行过，没有问题！(Establishment of multipath channel model)
- 2020-06-23 09:00:02下载
- 积分：1
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main1MAX
终端直通技术，cellular用户同D2D用户间的资源分配(Device-to-Device，resource allocation)
- 2021-01-27 21:18:40下载
- 积分：1
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KP_factor
该函数主要通过两个矩阵的克罗内克积来对两个因子矩阵进行估计。输入变量为克罗内积，输出为指定维度值得两个因子矩阵。(This function is used to estimate the two factor of a matrix which is the Kronecker product of the aforementioned factor matrix.)
- 2017-11-24 17:03:44下载
- 积分：1
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OFDM
OFDM系统仿真，适合初学者，程序简单易于理解(OFDM system simulation, suitable for beginners, the program is simple and easy to understand)
- 2013-05-14 15:50:17下载
- 积分：1
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370511
psk调制,在matlab命令区输入bpskdigital[1 0 1 1 0 0 1 0],1]按运行,即可看到调制波(Psk modulation, input bpskdigital [1 0 1 0 0 0] in the matlab command area, 1] press operation, you can see the modulation wave)
- 2019-03-26 23:08:40下载
- 积分：1
