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介绍matlab的各种用法，属于matlab教学类资料(Introduction matlab various uses of the matlab teaching class information)

The ANPR (Automatic Number Plate Recognition) using ALR (Automatic line Tracking Robot) is a system designed to help in recognition of number plates of vehicles. This system is designed for the purpose of the security and it is a security system. This system is based on the image processing system. This system helps in the functions like detection of the number plates of the vehicles, processing them and using processed data for further processes like storing, allowing vehicle to pass or to reject vehicle. This system also helps to conduct the graphic images of the vehicles which can be further stored in the database in text format reducing size of data to be stored.

三种方法实现数字下变频：直接法、bessel插值、多相滤波等(three method of DDC)

segy数据格式读入，对地震资料处理有用，我开发的(segy read into the data format for seismic data processing useful, I developed)

PCA Discrete wavelet face recognition

可以对已有的信号求其循环谱，信号可以通用的。(The cyclic spectrum of the existing signal can be obtained, and the signal can be universal.)

unconstrain function matlab code, optimizition benchmark problem (test problem) in matlab

精通MATLAB6.5教程与实例（北京航空航天大学出版社，张志涌编）(Tutorials and examples of proficient MATLAB6.5 (Beijing Aerospace University Press, Zhang Yong ed.))

说明：  OFDM信号的matlab实现，里面有具体的分析和说明(OFDM signals in matlab to achieve, there are specific analysis and description)

说明：  describe the file once again