conv2

water hammer （水锤）计算程序。

Bifurcation Diagram of Quadratic map

最小数据量法计算李雅普诺夫常数，给出matlab下的源代码(The minimum amount of data calculated Lyapunov constant, given the source code under matlab)

说明：   在三次样条中，要寻找三次多项式，以逼近每对数据点间的曲线。在样条术语中，这些数据点称之为断点。因为，两点只能决定一条直线，而在两点间的曲线可用无限多的三次多项式近似。因此，为使结果具有唯一性。在三次样条中，增加了三次多项式的约束条件。通过限定每个三次多项式的一阶和二阶导数，使其在断点处相等，就可以较好地确定所有内部三次多项式。此外，近似多项式通过这些断点的斜率和曲率是连续的。然而，第一个和最后一个三次多项式在第一个和最后一个断点以外，没有伴随多项式。因此必须通过其它方法确定其余的约束。最常用的方法，也是函数spline所采用的方法，就是采用非扭结(not-a-knot)条件。这个条件强迫第一个和第二个三次多项式的三阶导数相等。对最后一个和倒数第二个三次多项式也做同样地处理。 (the Cubic Spline, to find three polynomial, approaching every right to point the data curve. The kind of terms, these data points called breakpoints. Because only two points a straight decisions, and in between the two curves can be used an infinite number of cubic polynomial approximation. Therefore, in order for the outcome of uniqueness. The Cubic Spline, add the cubic polynomial bound by the conditions. By limiting each cubic polynomial of the first order and second-order derivative, it breakpoint in the same Department, we can better identify all internal cubic polynomial. In addition, the polynomial approximation of these breakpoints slope and curvature is continuous. However, the last one and a cubic polynomial in a breakpoint and the final one, not accompanied by polynomials. There)

说明：  使用环机制实现网格三角分割的简单m文件。(A simple m file for the triangle mesh subdivision using the Loop s scheme. The zip file includes four examples of subdivision. )

用MATLAB模拟干涉过程，探讨干涉计量中，各种数据对干涉的影响。(Interference using MATLAB simulation process to explore a variety of data interference interferometry.)

传统的信道估计仿真，有注释，有详细的教程流程解释，生成BER图，可改变调制方式等等(The traditional channel estimation simulation, notes, a detailed tutorial to explain the process to generate BER map, you can change the modulation scheme, etc.)

Travelling salesman problem description to code in matlab is provided in this document

ASK_FSK_PSK digital signals

reading Ply format file and exract vertex and face matrix for 3D-Objects