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射线追踪,包含了起点和终点的射线函数，对于地震传播研究具有重要意义！(Raytracing in a v(z) world. The toolbox contains functions forshooting fans of rays and functions for tracing rays with specific start and end points. General multi-bounce rays with any number of mode conversions can be traced. Automatic routines for P-P and P-S primaries in shot-gather geometry are provided for convenience. Any recording geometry can be used but most functions vectorize (e.g. are most efficient) for shot-gather geometry. Only traveltimes and rayparameters are detemined, not amplitudes. In these routines, the velocity models should be considered as "background" models. This means that the depths at which flections and mode conversions occur are dependent of the depths given as layer boundaries in the velocity models. Velocity models are specified by a vector of velocities and a same-size vector of depths. The j th velocity is in effect from the j th to the j+1 th depth. The bottom of the model is assumed at infinite depth. Thus v=5000 and z=0 specifies a cons)

关于matlab矩阵操作的初级教程，对新生很有用。建议大家看看！(Matlab matrix operation on the primary curriculum for freshmen useful. Recommendations to see everyone!)

Probabilistic neural network algorithm matlab experimental procedure can be used for license plate recognition to identify issues such as character recognition

使用SIMULINK构建Turbo码仿真系统 A simulation system of Turbo Code using SIMULINK (北京科技大学信息工程学院)周贤(Turbo code constructed using SIMULINK simulation A simulation system of Turbo Code using SIMULINK (Beijing University of Science and Technology Information Technology Institute) Zhou)

介绍卫星星历数据的解码格式，为计算卫星伪距改正数做铺垫。(Introduction of satellite ephemeris data decoding formats, for the calculation of the satellite pseudorange corrections to pave the way.)

Matlab编写的图像配准函数,可达到0.01像素精度，并附有算法说明pdf文档(Timage registration function writen by Matlab. It can reach 0.01 pixel accuracy. The algorithm description of pdf document is include.)

这是周建兴编写的<<matlab从入门到精通》第三章的所有源代码，都可以运行的出来，和课本上的一样，(This is Zhoujian Xing written < <matlab从入门到精通》第三章的所有源代码，都可以运行的出来，和课本上的一样，)

先进PID控制 MATLAB仿真 第2版 刘金琨等编著和书中的所有程序，模糊控制及其MATLAB应用 张国良，是很好的学习模糊控制的资料。(Advanced PID control of MATLAB version 2 Jin-kun liu huang, and all the procedures of the book, such as fuzzy control and its application MATLAB RON cheung, is a very good learning fuzzy control information.)

对M=16的PSK系统仿真，分析系统的误码率，画出仿真误码率曲线，与理论误码率曲线进行对比。（MATLAB语言实现）(M = 16 for the PSK system simulation, analysis of system bit error rate, BER simulation draw curves with the theoretical BER curves are compared. (MATLAB language))

利用模式理论，对给定几何尺寸以及折射率分布的光纤进行模式求解与绘图，该程序给出LP21模的求解与绘图。(the LP21 mode of the fiber)