4bitSM

this programs explain the basic functionality of QPSK Modulation and Demodulation program. Check this.

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.

This code for target tracker in matlab

超全的模式识别matlab程序，欢迎下载(Pattern recognition matlab)

运用Sobel算子对图像进行锐化的源代码(Using Sobel operator to sharpen the image source code)

用分布傅里叶计算硅波导中的非线性薛定谔方程，考虑硅波导中色散及非线性损耗(solution of NLSE(two pulses propagate in silicon waveguide) using split step fourier method)

apply economics with matlab

异步电动机直接转矩控制基本原理及交流变频调速系统设计(Induction motor direct torque control and the basic principles of AC variable speed system design)

平面波展开法计算能带，计算速度快，资源占用少(Plane wave expansion method to calculate the energy band, fast calculation)

说明：  matlab 仿真JAKE 模型 用于信道估计 (matlab simulation model for channel estimation JAKE)