dspbuild1

This is a Matlab program. It creates the checkerbox images for image processing and test applications.

一本MATLAB在光学工程方面应用的好书(A MATLAB application in optical engineering books)

测试文本，选用著名的gettysburg这篇英文文本做为测试文本(Second, it fuses the features of the first singular value component and the second one, and then gets the complex feature vectors which reflect not only the statistic frequency but also the sequential structure of letters. In the end, the cosine similarity of texts is used to measure the similarity between the query and documents.)

实现各阶本原多项式的小m序列的长生，通过改变本原多项式的生成矩阵可以产生想要的m序列的(Order to achieve the small-m primitive polynomial sequence longevity, by changing the primitive polynomial generator matrix m can produce the desired sequence)

matlab的学习课件，关于科学计算的应用，以数学计算主要要内容(matlab learning courseware, on the application of scientific computing, mathematical calculations primarily to content)

研究生时的现代信号处理的作业，在MATLAB中求图像纹理特征，基于分段非线性权重值的Pso算法，最大信噪比的独立分量分析算法，快速扩展随机生成树算法。( Modern signal processing jobs when the graduate, In the MATLAB image texture feature, Based on piecewise nonlinear weight value Pso algorithm, SNR largest independent component analysis algorithm, Rapid expansion of random spanning tree algorithm.)

说明：  《现代信号处理》中关于利用最小二乘法估计ARMA模型的参数，并进行谐波恢复的仿真程序(err)

ROBUST PID CONTROLLER AUTOTUNING WITH A PHASE SHAPER

frequency modulation concerning FCN in communication systems

在一个移动通信系统中，发射信号是一个未调制的音频x(t)=cos(2πft)，其中f=f0+fi。设标称载波为f0=1GHz，并设fi =512Hz。假定移动用户在一个繁忙的高速公路上距离基站l公里处的地方，从开始从每小时60公里的速度开始，其速度（在0.01秒的时间间隔内测量）以1/2的概率随机的增加或减少1/10公里每小时。试仿真移动用户在这2s的时间间隔内所接收到的信号(及其频谱)。接收信号可以表示为： y(t)=a(t)Cos[2π(fo+f1)(t-△t)] 式中 △(t)=d(t)/c 且 a(t)=k/d2(t) 在上面的表达式中d(t)是在t时刻基站与移动用户的距离，c是光速，△(t)是传播延迟，而a(t)是信号在t时刻的衰减，并假设在这2s内a(t)是一个常数。利用复低通等效模型来进行仿真。(In a mobile communication system, the transmitted signal is an unmodulated audio x (t) = cos (2πft), where f = f0+ fi. Let nominal carrier of f0 = 1GHz, and set fi = 512Hz. Assume that mobile users on a busy motorway station l kilometers place, starting the beginning of 60 kilometers per hour, the speed (measured in 0.01 second interval) to increase the probability of a random 1/2 or reducing 1/10 km/h. Simulation test signal which the mobile subscriber in the 2s time intervals of the received (and its spectrum). The received signal can be expressed as: y (t) = a (t) Cos [2π (fo+ f1) (t- △ t)] Where △ (t) = d (t)/c And a (t) = k/d2 (t) In the above expression, d (t) at time t is a base station and a mobile user s distance, c is the speed of light, △ (t) is the propagation delay, and a (t) is the attenuation of the signal at time t, and assuming that 2s within a (t) is a constant. Using complex low-pass equivalent model for emulation.)