digital-signal-process1

基于特征块匹配的快速稳像算法，方法用块匹配方法对图像进行匹配，并进行稳像(Feature-based block matching algorithm for fast stabilization, methods using block-matching method to match the image, and conduct stabilization)

说明：  这是语音信号处理里面的，基本谱减法，处理的效果很不错，很适合初学者研究！(This is the speech signal processing inside the basic spectral subtraction to deal with the effect of very good, very suitable for beginners study!)

this programme implements David Lowe s Scale Invariant Feature Transform (SIFT) algorithm to a grayscale image

在一段文字中嵌入4bit水印，方法是基于系数类嵌入的，经过打印扫描攻击后能正确提取水印(4bit watermark embedded in a piece of text, the method is based on the coefficient of class embedded, after the print scan attack correctly extract the watermark)

MFCC algorithm for calculating mel frequenc cepstral coefficients.

协同过滤算法 基于用户和基于项目（在readme中有详细解释） 里面已dataset数据集(Collaborative filtering)

无速度传感器MARS _PMSG相关仿真资料(MARS _PMSG)

function [X, gamma_ind, gamma_est, count] = MFOCUSS(Phi, Y, lambda, varargin) MFOCUSS algorithm for the MMV model

本仿真为电动汽车充电仿真，采用了非隔离式的DC/DC环节(The simulation for the electric car charging simulation, using a non-isolated DC/the DC link)

1、利用自相关法找出含有大量数据的周期信号的周期 2、利用互相关对齐含有大量数据的多路采样信号以便分析 3、使用分段平滑经过求导后的含有干扰的图像曲线(1, using the autocorrelation method contains large amounts of data to identify the period of the periodic signal 2, using the cross-correlation contains a large amount of data aligned with the sampling signal for the multiplexed analysis, the use of segmented through derivative after smoothing with interference by the image curve)