soundfield

3GPP推荐的SCM信道模型的MATLAB源码，实现了LOS场景和NLOS场景，以及极化天线情况下的仿真。(the simulation of SCM channel model suggested by 3GPP completed the environment of LOS and NLOS including the polarize antenna.)

implementation of 1D dwt in matlab

通过matlab代码实现PCA算法程序设计步骤： 包括1、去均值 2、计算协方差矩阵及其特征值和 qZHBpQ 特征向量 3、计算协方差矩阵的特征值大于阈值的个数以及 ixDqskB值 4、降序排列特征值，编译通过达到很高的性能。(PCA algorithm program realization by matlab code design steps include: 1, 2 to the mean, covariance matrix and its eigenvalues and eigenvectors qZHBpQ 3, calculate the covariance matrix of eigenvalues greater than the number of threshold values, and only 4 ixDqskB, in descending order eigenvalues, compiled by achieving high performance.)

Peak to average power ratio calculator for OFDMA signal which is use for LTE downlink transimission and wimax sytems.

自己编写的AR过程信号线形预测器RLS算法。(I have written of the AR process of linear prediction RLS algorithm)

该书第一章系统讲述MATLAB6.5 的集成工作平台，引导读者初会MATLAB 基本用法。第二、三章系统叙述MATLAB6.1 的四大基本数据类型（数值数组、字符串数组、元胞数组、构架数组），至于其它扩展数据类型（函数句柄、符号数据、内联函数、unit 数组、稀疏类）则另辟章节专述。此后，本书用九个独立章分述MATLAB6.5 的数值计算、符号计算、函数和数据可视、面向对象编程、GUI 交互操作界面设计、EXE 独立应用程序生成、实现不同软件平台交互的API、M-book 数据图形文字环境集成等八大通用功能。本书用专门的一章深入浅出地阐明SIMULINK 的分层建模、仿真功能、与MATLAB 交互的功能。(err)

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)

图形用户界面（Graphical User Interfaces ，GUI）则是由窗口、光标、按键、菜单、文字说明等对象（Objects）构成的一个用户界面。用户通过一定的方法（如鼠标或键盘）选择、激活这些图形对象，使计算机产生某种动作或变化，比如实现计算、绘图等。(matlab gui)

杨氏双缝干涉，圆孔衍射，单缝衍射，光栅衍射的MATLAB实现代码(Young' s double-slit interference, circular aperture diffraction, single slit diffraction grating diffraction MATLAB code)

以Simulink为主要工具介绍了系统仿真方法与技巧，包括连续系统、离散系统、随机输入系统和复数系统的仿真。介绍了模声封装技术、电力系统模块集、非线性系统设计模块集、S-函数编写与应用、Stateflow有限状态机、虚拟现实工具箱等中高级使用方法，最后还介绍了半实物仿真技术与实时控制技术。(Simulink as the main tool to introduce a system simulation methods and techniques, including continuous systems, discrete systems, stochastic input system and the simulation of complex systems. Introduce a sound module packaging technology, power system module set, non-linear system design blockset, S-function of the preparation and application, Stateflow finite state machine, virtual reality and other high use of the toolbox, and finally also introduce a semi-physical simulation technology and real-time control technology.)