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说明：  告诉你如何使用matlab添加压缩文件，这是很实用的(Tell you how to use matlab compressed files to add, this is very useful)

该程序和文档研究了在单径瑞利信道中，BPSK的误码率性能，画出比特信噪比与误码率的关系曲线，具体公式在文档中给出。(The study of the relationship between programs and documents in a single path Rayleigh channel curve, the BER performance of BPSK, draw the bit error rate and signal to noise ratio, the specific formula is given in the document.)

FRFT和线性调频信号中的子程序，FRFT中的a，也就是需要估计的角度。两个程序需要一起使用(FRFT and chirp signal subroutine, FRFT of a, is the need to estimate the angle. Both programs need to be used together)

　计算机人脸识别技术( Face Reocgnition)就利用计算机分析人脸图像,从中提取出有效的识别信息,用来辨认身份的一门技术。[ 1 ]即对已知人脸进行标准化处理后,通过某种方法和数据库中的人脸样本进行匹配,寻找库中对应人脸及该人脸相关信息。人脸自动识别系统有两个主要技术环节,一是人脸定位,即从输入图像中找到人脸存在的位置,将人脸从背景中分割出来,二是对标准化后的人脸图像进行特征提取和识别。本文中介绍的PCA (特征脸)方法就是一种常用的人脸 特征提取方法。(Computer Face Recognition Technology (Face Reocgnition) on the use of computer analysis of facial image, to extract the valid identification information used to identify the status of a technology. [1] that is known to standardize treatment of face, through a method and a database of face samples for matching, search library, the corresponding face and the face-related information. Automatic face recognition system has two main technical aspects, first, face location, that is, from the input image to find the location of the face there, the faces will be split out from the background, the second is, the standard features of face images extraction and recognition. Described in this paper PCA (Eigenfaces) method is a common facial feature extraction method.)

switching median filter for removing impulse noise

带通滤波器的simulation仿真源码(Band-pass filter)

交互式多模型算法的matlab程序，用于混合系统估计的多模型方法，在跟踪器设计过程中，目标模型的选择将直接关系到滤波性能的好坏。 (Interactive multiple model algorithm matlab program for hybrid systems is estimated that the multi-model approach, in the tracker design process, the object model will have a direct bearing on the choice of filtering performance is good or bad.)

此程序主要是对振动速度和位移信号的在线采集和处理，功能较为齐全。(This program is mainly for vibration velocity and displacement signal acquisition and processing online, function more complete.)

利用传递矩阵计算转子系统的临界转速 很实用的 (critical speed)

good code good code good code good code good code good code good code good code good code (good code good code good code good code good code good code good code good code good code)