beamformingCodes

使用超声进行人脸识别分类 face recognition with ultrasonics(The use of ultrasound classification for face recognition face recognition with ultrasonics)

本程序设计的是咬尾编码的turbo码，用matlab编写。咬尾turbo码也即不需要拖尾比特，使得前后两个状态相同，译码采用修正的MAP译码算法(This program is designed to encode the turbo tail biting code, written with matlab. Tail biting turbo code that is not trailing bits to make the same before and after the two states, decoding, MAP decoding algorithm using modified)

说明：  128QAM调制仿真的星座图。matlab源文件。(Simulation 128QAM modulation constellation diagram. matlab source file.)

此程序能够很好的实现调频调相调幅等多种调制方式和多进制的调制。(This process can achieve the frequency modulation and amplitude modulation and other multi-band modulation.)

说明：  盲分离算法,处理语音信号，方法简单，实用！(bbs)

对激光通过大气传输的主要非线性过程进行数值模拟, 列出大气的流体动力学方程组和与 大气相互作用的波方程，推导出受激热瑞利散射引起的小扰动不稳定性的波与大气的耦合方程, 还对湍流作了处理。(Of laser transmission through the atmosphere, the main non-linear process to simulate the fluid dynamics are listed in the atmosphere and atmospheric interaction equations and the wave equation is derived by stimulated thermal Rayleigh scattering instability caused by the wave perturbation coupled equations with the atmosphere, but also made a deal with turbulence.)

求PI的值，根据莱布尼茨公式求PI，PI=4*（1-1/3+1/5-1/7+1/9-1/11+……(PI uated, find PI, PI= 4* (1-1/3+1/5-1/7+1/9-1/11+ Leibniz formula based on ......)

Matlab编写的关于各种电压源的M文件，有效解决了Matlab中电源形式单一的问题，具有很好的参考价值(Matlab about all kinds of voltage source file of M, effectively solve the power supply in the form of a single Matlab, has the very good reference value )

An Improved Smoothed

计算二维图像的灰度游程矩阵，并计算特征统计量(Calculating the gray range matrix of a two-dimensional image and calculating the characteristic statistics)