welch

说明：  提取短时能量，短时过零率，清音/浊音自相关函数(Extraction of short-term energy, short-term zero crossing rate, voiceless/voiced autocorrelation function)

Imu Mechanization Equations for inertial navigation calculation accelerometer and gyroscope data

Transform two case , the one case 1 is Fourier the 8X8 size and then use the mask to clear the high fitter . the second case 2 is cosine the 8X8 size and then use the mask to clear the high fitter .

this file is an imlementation of PII scheme of PAPR reduction for MCMs Scheme

说明：  这是一篇关于GPS信号的捕获文章，采用的是DF差分相关捕获的算法，具有在较低信噪比的情况下捕获信号(This is an article about the capture of GPS signal, using the DF algorithm to capture differential associated with low signal to noise ratio in the case of capture signal)

对归一化最小均方算法NLMS的matlab仿真，包括收敛曲线(The normalized least mean square algorithm NLMS matlab simulation, including convergence curve )

基于神经网络的人脸识别，主要识别人脸的面对的方向，开发环境matlab(Face recognition based on neural networks, mainly face to face identification of the direction, development environment matlab)

Steganography LSB by 3bits find and hide information in a image

Controle vetorial do motor de induç ã o

matlab code for the envelope detector in analog communications.