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2008年全国大学生数学建模获奖论文所需程序代码，其中有较详细的matlab编程，应该有些用处吧(Mathematical Contest in Modeling 2008, papers required for award-winning code, including more detailed matlab programming, it should be of some use)

说明：  matlab自编迭代法求阈值，并按照此阈值对图像进行二值化处理。(matlab self iterative method for threshold and follow this threshold for image binarization processing.)

this is good code.for our learing.

说明：  对采集到的数据进行分析，并有相对的频谱转换，观察频域的信号(On analysis of data collected, and the relative frequency conversion, frequency domain signal observed)

说明：  Direct Sequence Spread spectrum

实现半不变量法概率潮流计算，并与蒙特卡洛模拟法作比较(Probabilistic power flow based on cumulants, compared with monte-carlo simulink method)

low pass filter desined in matlab signal toolbox butterworth fiter

说明：  为NURBS曲线拟合程序，包括插值等内容。(it's the NURBS curve fitting program, including interpolation and so on.)

说明：  matlab 卫星N 文件、O文件读取，计算出卫星坐标和测站坐标，精度为10M左右(matlab satellite N files, O file read, calculate the satellite coordinates and station coordinates, and an accuracy of about 10M)

信号与系统软件实验工具箱，本系统包括七个实验，分别是：信号的时域基本运算、连续信号的卷积与连续时间系统的时域分析、离散信号的卷积与离散时间系统的时域分析、信号的频域分析、连续信号的采样与恢复、系统的频域分析、信号的幅度调制与解调。为了加强学生的计算机编程能力和应用能力，所有实验均提供设计性实验内容，让学生参与编程。本系统既可作为教师教学的实验演示，又可作为学生动手实验的实验系统。(Signals and Systems Software experimental toolbox, the system includes seven experiments, namely: basic operations signals in time domain, the convolution of continuous signals and continuous-time system time domain analysis, convolution of discrete signals and discrete-time systems when domain analysis, frequency domain signal analysis, continuous signal sampling and recovery, system frequency domain analysis, signal amplitude modulation and demodulation. In order to strengthen the student s computer programming skills and ability to provide all the experiments were designed experiment content, allowing students to participate in programming. This system can be used as experimental demonstration of teaching, but also as a student hands-on experiments the experimental system.)