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hht和emd源代码，可以直接出图像，MATLAB开发环境(hht and emd source code, the image can be directly)

wireless communication 5g OFDM

说明：  简要介绍了认知无线电中基于能量检测的频谱感知方法,在分析能量检测法原理和性能基础上,研究了噪声的不确定性对检测性能的影响. 仿真表明,能量检测法是一种简单、有效的频谱感知方法.(A brief introduction of cognitive radio spectrum sensing based on energy detection method, the analysis and performance of energy detection principle, based on the uncertainty of the noise effect on detection performance. Simulations show that the energy detection method is a simple, effective spectrum sensing method.)

采用锦标赛选择算子改进的遗传算法解决函数优化问题(Tournament selection operator using improved genetic algorithm to solve function optimization problems)

本案例通过对图像加入高斯噪声，利用sym4小波函数对该图像和信号进行三级分解，用小波阀值去噪的方法对该图像进行去噪，并给出了仿真结果。(This case through join Gaussian noise image, use the sym4 wavelet decomposition of the image and signal, the wavelet threshold to filter method for the image denoising is presented, and the simulation results.)

theoretical and simulated BER are in good agreement in AWGN channel the result can be extended to general M-QAM using slight modification .

粒子群算法 吐血推荐。欢迎大家一块交流。MATLAB程序实现的。(Particle Swarm recommended blood. Welcome to an exchange. MATLAB perfectly.)

介绍了MIMO-OFDM系统检测的一种改进的算法--球形解码算法.具体包括:VB球形,CL球形解码算法和改进的算法(KCL和CL-MMSE算法).能仿真出结果.(MIMO-OFDM Systems introduced an improved detection algorithm- sphere decoding algorithm. Specifically include: VB spherical, CL sphere decoding algorithm and improved algorithm (KCL and CL-MMSE algorithm). To simulation result.)

netcdf插件、安装说明及netcdf数据读取(Nc plug-ins, installation instructions and nc data read )

gilber strang matlab files Computational Science and Engineering