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说明：  有效计算李氏指数！lyapunov指数的求取(lyapunov指数的求取！)

研究了重频参差相参脉冲串的频率估计算法。通过脉内相关积累，提高了新序列的信噪比。对新序列的相位差按参差重数抽样平均，减小了等效的相位噪声方差，利用重频参差比解相位模糊，扩大了频偏允许范围，降低了算法的信噪比门限。分析了本算法实现相参频率估计的条件，推导了相应信噪比门限的解析表达式，指出了信噪比门限与信号样本总数、参差重数、参差比之阎的关系。仿真结果表明：上述结论是正确的，在满足信噪比门限条件下，频率估计的精度接近相参脉冲串频率估计的克拉美一罗限(CRLB)。(Frequency Estimation for Staggered Coherent Pulse Train)

说明：  2011年我校数学建模第二轮测试题，有关于肾炎问题的，相关文档(Mathematical modeling school in 2011 I tested the second round of questions, questions about the nephritis, and related documents)

用Matlab编写的相机标定程序，球去了相机参数。内附标定图像。(Prepared by the Matlab camera calibration procedures, the ball to the camera parameters. Enclosing the image calibration.)

这是机械工业张德丰《MATLAB与外部程序接口编程》随书源码，这本书详细介绍了MATLAB与C、C++、Excel、VB、Delphi、FORTRAN相互调用的方法，使得我们可以综合利用传统编程语言执行效率高和MATLAB函数库功能强大的优势，本书对于MEX和MAT文件、MATLAB引擎、MATLAB C/C++函数库、Matcom等都作了详细的介绍并举例说明，书籍最后还介绍了MATLAB的串口接口。(This is the machine-building industry张德丰" MATLAB and external program interface programming" with the source book, this book details MATLAB with C, C++, Excel, VB, Delphi, FORTRAN calls each method, allows us to provision of comprehensive utilization of traditional efficient way to implement the language and MATLAB function library powerful advantages, this book MEX and MAT files for, MATLAB engine, MATLAB C/C++ function library, Matcom have made a detailed introduction and examples, the book also introduced the final MATLAB serial interface.)

说明：  多用户mimo的另一种线性预编码，区别于原有的迫零和最大信噪比发射(Another multi-user mimo linear pre-coding, different from the original force and maximum signal to noise ratio of zero emission)

IIR数字滤波器的设计 上学的时候一直不知道如何用C语言来编写IIR滤波器，终于找到了，上传给大家 希望能帮到大家。(IIR digital filter design when the school did not know how to use C language to write IIR filters, and finally found it, upload to hope to help you.)

这个是一个两级式三相光伏并网逆变器仿真系统，包括前级最大功率点跟踪，后及采用svpwm控制算法进行逆变(This is a two and three-phase photovoltaic grid-connected inverter simulation systems, including pre-maximum power point tracking, and the use of the inverter control algorithm svpwm)

matlab的随机过程仿真实现，包含泊松过程，指数分布，高斯分布等(matlab random process simulation to achieve, including the Poisson process, exponential distribution, Gaussian distribution)

滤波器的MATLAB实现程序 内附多个源代码，可作学习参考(Filter containing the MATLAB program to achieve a number of source code, reference can be used for learning)