fdtd2D

说明：  利用共軛梯度法求解線性聯立方程組 從整體來搜索最佳方向(Using conjugate gradient method for solving linear simultaneous equations to search for the best direction for the overall)

a code to find the mean in 2d

多尺度熵matlab计算程序，应用于信号分析和处理(multi-scale entropy)

Matlab信号处理（刘波等编著）部分程序，内附有一个常用函数清单的PDF文档(Matlab Signal Processing (ed. Liu Bo, etc.) of the program, enclosing a list of commonly used functions PDF documents)

matlab书籍类的创建一章，有理多项式对象类型的构造、显示、运算符和函数重载等一些列程序代码(matlab class to create a chapter book, the construction of rational polynomial object type, display, operator and function overloading and some out code)

说明：  matlab source code for dsp

亚波长光栅的matlab模拟，可以更改相关参数，实现透射和反射的模拟(Subwavelength grating matlab simulation, you can change the relevant parameters, to achieve the analog transmission and reflection)

用于语音端点检测，可以将连续语音分割为孤立词。(For voice activity detection, continuous speech can be split into isolated words.)

matlab多种控制算法的源代码，包括时域响应的性能指标，由特征多项式构造胡尔维茨矩阵，根轨迹几何法设计串联超前控制器等(matlab variety of control algorithm source code, including the performance of the time domain response by the characteristic polynomial constructed Hurwitz matrix, root locus the geometric method designed series lead controller)

说明：  数字信号处理设计与仿真分析 (1)建立两个模拟信号的数学模型 sa1(t)和 sa2(t)， 其中 sa1(t)是有用信号， sa2(t)是干 扰信号。 两个信号的中心频率、信号带宽等参数由学生自己选定，要求两个信号的频谱不重 叠， sa2(t)的幅度比 sa1(t)的幅度高 20dB， 两个信号时域叠加得到合成信号 xa(t)， 即 xa(t)= sa1(t)+ sa2(t) 设计计算机程序仿真产生 sa1(t)、 sa2(t)、 xa(t)信号， 分别画出三个模拟信号的时域波 形和频谱图；(Establish two mathematical models of analog signals sa1(t) and SA2 (t), where SA1 (t) is the useful signal and SA2 (t) is the dry signal Interference signals.)