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说明：  基于matlab的卡尔曼滤波器设计。主要是可以显著消除随机误差。(Based on the Kalman filter design matlab. Mainly can significantly eliminate the random error.)

set up the trellis with code generator G in binary matrix form.

多项式求值的四种算法的运行时间复杂度的比较。将四个算法在一个程序中实现，并在一个运行结果图中比较显示。(Value of the four algorithms polynomial time complexity of running the comparison. Four algorithms will be implemented in a program and run the results in a comparison chart display.)

MATLAB 模式识别包 初学者的好工具 (Pattern recognition package MATLAB good tool for beginners)

中文的matlab使用说明，这对初学者来说是一个很好的资源，毕竟对英文的理解可能达不到那么深(the prduction of matlab)

研究中我么采用分段的方法对数字音频信号嵌入水印。为便于研 究，以灰度图像为数字水印原始信号经二值化处理后得到水印再嵌入 音频信号的离散变换域中，从而得到嵌入水印的音频信号，其实现过 程原理框图如图1 所示。在水印嵌入的过程主要实现四个阶段的任 务：(1)数据准备与预处理，主要是准备好水印原始图片和待嵌入水印 的音频信号 (2)音频信号分段处理，用于嵌入水印的音频数据部分等 分成(m1*m2)个音频数据段 (3)水印图像降维处理，在此过程灰度图像 水印转化为二值图象, 要将其嵌入到一维的数字音频信号中, 必须将 二维的图像转化成一维的序列 (4)将水印嵌入到数字音频信号中,从而 最终获得带数字水印的音频信号。(The study I Mody, segmented digital audio signal embedded watermark. Discrete transform domain to facilitate the study of the grayscale image for the digital watermark the original signal is obtained after the binarization processing watermark embedded in the audio signal, thereby obtaining the watermark embedded in the audio signal, and its implementation process schematic block diagram shown in Figure 1. Mainly in the watermark embedding process to achieve the task of four phases: (1) The data preparation and pretreatment, is ready to watermark the original picture and to be embedded in the audio signal of the watermark (2) audio signal segment processing for embedding watermark The audio data portion is divided into (m1* m2) audio data segment (3) The watermark image dimension reduction processing, binary image is converted to grayscale image watermark in this process, and to be embedded into a digital audio signal of a one-dimensional , two-dimensional images must be converted in)

这是在cnki上下载的关于gps伪卫星定位精度的文献，里面有matlab仿真实验操作，可以通过实验发现dop值影响定位精度(This is the download in CNKI on GPS pseudo satellite positioning accuracy of the literature, there are matlab simulation operation, can be found through experiments that DOP value affects the positioning accuracy)

Matlab code to calculate ArgMin and ArgMax

从经典功率谱估计周期图法原理入手，从理论上分析了其存在的局限性，借助Welch算法对其进行修正。依靠Matlab强大的数值分析和信号处理能力，进行实验仿真，比较不同的窗函数，不同的数据长度对Welch法谱估计质量的影响，并分析了造成这些影响的原因。(The paper mainly introduces the principles of Periodogram method of classical PSD estimation,analyzes the deficiency of Periodogram method in theory,and makes use of Welch to amend Perodogram method. By the use of simulation in Matlab, the impacts of different window function and different lenghth of data on estimation quality of Welch are discussed and the reasons of the impacts are analyzed.)

提供积分算法变步长Gill法代码，欢迎大家探讨！(Variable step integration algorithm to provide long-Gill method code, welcomed everyone to explore!)