speechcode1

使用各种滤波器对语音信号实现处理，并且通过播放处理前后的语音信号来对比各种滤波器的滤波效果(Using various filters to achieve the speech signal processing, and to compare the effect of various filters filtering the speech signal playback processing by before and after)

buck电路的搭建和仿真，搞电源的童鞋可以相互学习。( 英语 中文(简体) 日语 buck circuit structures and simulation, to engage the power of children s shoes can learn from each other.)

均匀分布随机数参数检验，均匀性检验和独立性检验(Uniformly distributed random numbers parametric tests, homogeneity testing and independence testing)

维纳滤波器（Wiener filter）是由数学家维纳（Rorbert Wiener）提出的一种以最小平方为最优准则的线性滤波器。在一定的约束条件下，其输出与一给定函数（通常称为期望输出）的差的平方达到最小，通过数学运算最终可变为一个托布利兹方程的求解问题。维纳滤波器又被称为最小二乘滤波器或最小平方滤波器，目前是基本的滤波方法之一。(Wiener filter (Wiener filter) is caused by a mathematician Wiener (Rorbert Wiener) proposed guidelines for the minimum square optimal linear filter. Under certain constraints, which outputs a given function (often called the desired output) reaches the minimum squared differential, the final mathematical operation may become a problem solving Equation Leeds Taub. Wiener filter is also known as the least squares filter or least squares filter, currently one of the basic filtering methods.)

GPS抗干扰处理 利用下载的星历数据建立卫星运动模型，建立贴近于真实的信号接收环境，在此环境下对各种抗干扰算法进行仿真测试。(GPS antijam processing, using RINEX file to construnt simulation environment to test varies algorithms.)

代码优化讲义，介绍如何优化代码，使代码运行效率最高(Code optimization notes on how to optimize the code, so that the most efficient code to run)

使用matlab做关于雷达的仿真，并且含有雷达性能的讲解与代码(Use matlab to do simulations on the radar, and contains the code to explain radar performance)

直流电机的启动与能耗制动过程，这里有直接启动和能耗制动的仿真图(Start with energy during braking DC motor， there is a direct start-up and braking energy simulation map)

主成分分析PCA(含有详细推导过程以及案例分析matlab版).doc(Principal component analysis PCA (containing detailed derivation and case studies matlab version). Doc)

2-D FDTD TE code with PML absorbing boundary conditions Program author: Susan C. Hagness