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说明：  LTE小区，主同步，辅同步参考信号生成，对于LTE理解很有帮助

一个判断年份，是闰年还是平年的小工具，可以非常方便的查询个个年份(A judge year, or a non-leap year is a leap year a small tool that can be very convenient to check everybody Year)

SAR 点目标仿真经典 适合初学者学习合成孔径雷达(SAR point target)

About sift algorithm

10V到5V的DCDCbuck电路，自己搭建(10V to 5V DCDCbuck circuit, build their own)

matlab注水算法的代码，详细描述了注水算法的过程。(matlab water algorithm code, a detailed description of the process water algorithm.)

FUZZY LOGIC WITH ENGINEERING APPLICATIONS(2nd Edition) Author: Timothy J. Ross Introduction:The second edition of this text has been ‘‘on the drawing board’’ for quite some time.Since the first edition was published, in 1995, the technology of fuzzy set theory and its application to systems, using fuzzy logic, has moved rapidly.

an ICM algorithm that is very useful and gives spectacular resuls

说明：  BP神经网络数字图像几何畸变矫正L-M优化算法(BP neural network LM digital image geometric distortion correction algorithm)

this program test certain system is timevariant or not. linear or not, causal or not