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谱减法的语音降噪模型仿真，具有较好的降噪效果。(Spectral subtraction noise model simulation of voice and has good noise reduction.)

说明：  MATLAB通信系统随机数产生mfiles，均匀、瑞利、高斯随机数发生器(Communication systems random number generator MATLAB mfiles, uniform, Rayleigh, Gaussian random number generator)

说明：  基于频熵的改进减谱算法，程序中的r值，需根据实际情况更改大小！(Entropy-based frequency spectrum by improving the algorithm, the program of the r value, need to change the size of the actual situation!)

dv-hop算法的matlab仿真编码 (dv-hop algorithm matlab simulation code)

Abstract— We propose a simple speech compression algorithm using subband division and ADPCM (Adaptive Differential Pulse Code Modulation) algorithm. Although speech data are stored in a semiconductor memory device, its capacity and the available network capacity are limited. Therefore, it is necessary to compress the data as much as possible. The first is that the reconstructed datum must be understood correctly. Speech signal is compressed with a ratio of 1/4 using the proposed subband division and ADPCM (Adaptive Differential Pulse Code Modulation) algorithm.

MATLAB程序设计教程，ppt格式，同时包含有大量程序设计案例源代码(MATLAB programming tutorials, ppt format, also contains a large number of cases the source code programming)

this source code zy2abcd in matlab

OFDM发射和接收收机，包括QAM、信道估计和S&C同步算法。(OFDM receiver and transmitter，include QAM modulation ，channel estimation and S&C synchronization algorithm。)

风机 直驱永磁同步风力发电机 最大功率跟踪 自己搭的永磁发电机模型(Fan Direct-drive permanent magnet synchronous wind turbine Maximum power tracking Self-rigid permanent magnet generator model Suitable for beginners to learn)

利用MLC来估计GMM 模型参数，压缩文件没有加密可以直接使用(use MLC to estimate model parameters GMM, compressed files directly without the use of encryption)