homework1

说明：  基于clarke模型的瑞利多径衰落产生器，由移动台速度确定的瑞利衰落随机过程(A Rayleigh fading simulator based on Clarke s Model. Creates a Rayleigh random process with PSD determined by the vehicle s speed)

Morphological skeleton transform implementation (image processing)

锐利信道仿真程序，已经调试通过，有详细的注释，非常有用(sharp channel simulation procedures, testing has passed, detailed notes, very useful!)

灰色模型的几个源代码，给新手使用吧，里面包含了xcdxgm11.m；verhust.m；gm11.m；ccgm11.m四个文件(Several source code of the gray model, to use for novice)

粒子滤波matlab仿真程序.粒子滤波的基本思想是：首先依据系统状态向量的经验条件分布，在状态空间抽样产生一组随机样本集合，这些样本集合称为粒子；然后根据观测值不断调整粒子的权重大小和样本位置；最后通过调整后的粒子信息修正最初的的经验条件分布，估计出系统状态和参数。该算法是一种递推滤波算法，可以用来估计任意非线性非高斯随机系统的状态和参数。 粒子滤波主要有三步基本操作：采样（从不含观察值的状态空间产生新的粒子）、权值计算（根据观察值计算各个粒子的权值）、重采样（抛弃权值小的粒子，使用权值大的粒子代替），这三步构成了粒子滤波的基本算法。 SIRF(Sample Importance Resampling Filter)算法是粒子滤波的一种基本算法。(Particle filter matlab simulation program)

This is a code in matlab for face recognition using PCA

复接入，B/W双用户使用直接扩频序列 ％ >>>multiple access b/w 2 users using DS CDMA ％ >>>format is : cdmamodem(user1,user2,snr_in_dbs) ％ >>>user1 and user2 are vectors and they should be of equal length ％ >>>e.g. user1=[1 0 1 0 1 0 1] , user2=[1 1 0 0 0 1 1],snr_in_dbs=-50 ％ >>>or snr_in_dbs=50 just any number wud do ％ Waqas Mansoor ％ NUST , Pakistan(Complex access, B/W dual-use direct sequence spread spectrum>>> multiple access b/w 2 users using DS CDMA>>> format is: cdmamodem (user1, user2, snr_in_dbs)>>> user1 and user2 are vectors and they should be of equal length>>> eg user1 = [1 0 1 0)

说明：  近10年来的大量研究充分肯定了自主神经活动与心血 管疾病死亡率特别是猝死率之间的关系。同时也公认心率变 异(HRV)是判断自主神经活动的最好的定量指标(Nearly 10 years of extensive research activities in full recognition of the autonomic nervous and cardiovascular disease mortality rate in particular, the relationship between sudden death. Heart rate variability also recognized (HRV) is the best judge of autonomic nervous activity quantitative index)

MATLAB程序，改进p的灰色预测m文件，可直接使用(MATLAB program, improved gray forecasting p m files can be used directly)

介绍matlab中字符串、元胞和构架数组的建立、使用和用法(Introduction matlab in the string array of cellular and framework of the establishment, use and usage)