Arima模型选择差分项，并验证序列正确性-predict

matlab中文件的读写，可以将你想要的数据通过文件打印在sin.txt的文件中，适合初学者。(read and write files in matlab, you can file through the data you want printed on sin.txt file, suitable for beginners.)

The program computes and plots the equation of time, the declination, and an analemma curve for various orbital parameters. The analemma is the curve traced by the position of the sun, measured at clock noon, over a year.

自己编写的令RGB图像实现灰度化的简单函数，不是直接调用的那种。(Make an RGB image to write your own the graying simple function, not directly invoke the kind.)

MATLAB SIMULINK通信仿真系统，带有可执行文件和文档，可供参考修改(MATLAB SIMULINK communication simulation system with executable files and documentation is available for reference modification)

一个声纹识别的全代码matlab(需要录音)(A full code matlab for voiceprint recognition (recording required))

matlab 的一个knn分类例子和数据(knn。。。。。。。。。。。。。。。。。。。。。。。。。。。。。。。。。。。。。。。。。。。。。。。。。。)

COIN DETECTION IS TO IDENTIFY THE GIVEN COIN COUNT IN ANY GIVEN APPLICATION System will automatically delete the directory of debug and release, so please do not put files on these two directory.

The main idea behind this book, and the incentive for writing it, is that strong connections exist between adaptive filtering and signal analysis, to the extent that it is not realistic—at least from an engineering point of view—to separate them. In order to understand adaptive filters well enough to design them properly and apply them successfully, a certain amount of knowledge of the analysis of the signals involved is indispensable. Conversely, several major analysis techniques become really efficient and useful in products only when they are designed and implemented in an adaptive fashion. This book is dedicated to the intricate relationships between these two areas. Moreover, this approach can lead to new ideas and new techniques in either field.

读取RINEX星历文件，观测文件，存储为数组形式，matlab环境下(Read RINEX ephemeris file, observation file)

matlab program for calculating fractal dimension using boxcount algorithm