test

一套完整的8-PSK调制解调的程序，对学习通信原理的初学者很有帮助。(A GOOD RESOURCE FOR STUDING MODULATION AND DEMODULATION )

说明：  认知无线电里的能量检测，适合初学者，比较简单(Energy detection in cognitive radio, suitable for beginners, is relatively simple)

针对风电场短期风速的预测提出一种基于小波变换的组合预测方法。首先利用Mallat 算法对短期风速时间序列进行db3 小波三层分解与重构，得到短期风速时间序列的近似分量和细节分量。针对近似分量和细节分量的不同特性，对近似分量利用粒子群算法优化的最小二乘支持向量机进行预测，对细节分量利用自回归求和滑动平均模型进行预测。最后各预测模型预测值组合叠加得到最终的短期风速预测值。仿真结果表明该方法具有较高的预测准确度。(In order to improve short-term wind speed prediction accuracy of wind farms，a combined prediction method based on the wavelet transform is proposed. Firstly，the db3 wavelet is used for three-layer decomposition and reconstruction for short-term wind speed time series through Mallat algorithm. The approximation components and the detail components of the short-term wind speed are then obtained. Next，according to the different characteristics of these components，the least square support vector machine optimized by particle swarm algorithm and the autoregressive integrated moving average model are adopted as the predictivemodels for the approximate components and the detail components respectively. Then，the final predictive value of the short-term wind speed is obtained by the combination of the two components. The simulation results indicate that higher accuracy can be obtained in this prediction method.)

无线信道小尺度衰落suzuki模型的matlab实现(Wireless channel small-scale fading matlab implementation of the suzuki model)

大家都为了学习，学习，在学习，努力，认真学习才是王道，希望有用( If you hadn’t told me about your birthday party tonight, If you hadn’t told me about your birthday party tonight。)

quantization simulation for audio file, mulaw and uniform

在多径瑞利衰落信道下，采用理想信道估计，Rake接收，仿真该系统在不同SNR下的信源误比特率性能，分析系统性能(In multipath Rayleigh fading channels, using the ideal channel estimation, Rake reception, simulation of the system at the source under different SNR BER performance, analyze system performance)

This is some code for recording in Matlab.

说明：  学习阶段自己写的，语音信号去噪的matlab程序，希望大家给出批评指正意见。(Stages of learning to write their own, the speech signal denoising matlab program, hope that we are given the views of critics correction.)

无线传感网中分布式LEACH路由协议Lower Energy Adaptive Clustering Hierarchy(wsn LEACH routing protocol)