The_process_of_spread_spectrum_communication

地球物理方法中的电测深正演程序，本程序设计了GUI界面，方便用户进行简单的一维正演(Geophysical method of electrical sounding forward modeling procedure, the program design the GUI interface, convenient for the user to carry on the simple one dimensional forward)

深空阵列中的SUMPLE与SIMPLE算法性能对比 以及SUMPLE算法相位漂移与补偿算法 一种基于SUMPLE幅度修正算法(the comparsion of the sumple and simple algorithms, the phase wandering and compensation including)

里面有大量的Matlab的应用实例，可以给大家的学习带来帮助，它不仅适合初学者而且也可以提高大家的Matlab编程能力。(Which a large number of Matlab application example, can help to bring everyone to learn, not only for beginners but also can improve our ability to Matlab programming.)

灰色gm(1,1)模型，当做函数可以调用，中间注释写得很详细，稍加修改即可成为灰色系统中别的算法。(Gray gm (1,1) model, as a function can call the Notes between very detailed, a little modification to the system as a gray-level algorithm.)

说明：  信号与系统实验一：连续时间信号 1.1 表示信号的基本MATLAB函数 1.2 连续时间复指数信号 (Signal and system experiment: a continuous time signal)

对数据集特征压缩，用样本熵的方法进行压缩，简单，易懂，matlab程序源代码(Compressed data set characteristics, sample entropy compression, simple, understandable, matlab program source code)

船舰尾迹识别，包括尾迹增强，边界识别，边界识别及船只定位(failed to translate)

SAR图像自动目标识别，包含完整计算方法以及matlab源代码(SAR image automatic target recognition, contains the complete calculation method and matlab source code)

PIECEWISE_EVAL: evaluates a piecewise function of x usage: y = PIECEWISE_EVAL(x,breakpoints,funs) arguments (input) x - vector or array of points to evaluate though the function breakpoints - list of n breakpoints, -inf and +inf are implicitly(PIECEWISE_EVAL : evaluates a piecewise function of x usage : PIECEWISE_EVAL y = (x, breakpoints, funs) arguments (input) x-vector or array of po ints to evaluate the function though breakpoin ts-list of n breakpoints.- inf and inf are implicitly)

说明：  利用最速下降法可以求得非线性方程的最优解，运算过程简单易懂。(By using the steepest descent method, the optimal solution of nonlinear equation can be obtained, and the operation process is simple and easy to understand.)