UPS

The computing world has undergone a revolution since the publication of The C Programming Language in 1978. Big computers are much bigger, and personal computers have capabilities that rival mainframes of a decade ago. During this time, C has changed too, although only modestly, and it has spread far beyond its origins as the language of the UNIX operating system.

这是一个简单的卡尔曼滤波程序，仅供初学者参照(This is a simple Kalman filter procedure, only for reference for beginners)

ARMA有理谱估计的阶数估计，用于估计用ARMA过程估计功率谱时要用几阶比较合适。(ARMA spectrum order estimation. It is used to compute the order of ARMA process that suited for signal estimation. )

基于Mtalab实现的指纹特征提取的实例(Mtalab realize fingerprint-based feature extraction examples)

说明：  我自己寫的matlab教學，給初學者更快上手。(Matlab write my own teaching, for beginners to get started quickly.)

harris角点提取，是基于matlab的 大家做图像处理的都可以用的到(harris corner detection)

画出下述情况下均匀线阵方向图 1）计算来波方向为0度方向图 2）画出来波方向为45度时的方向图 3）画出来波方向为0度，幅度取分贝数：20log***（单位为dB）时的方向图 4）画出来波方向为0度，随着阵元数的增加，当N=16，N=32时的方向图，并对方向图的变化情况进行说明(Draw the following conditions uniform linear array 1) calculation of wave direction is 0 degrees direction diagram 2) draw out the wave direction is 45 degrees direction map 3) draw out the wave direction is 0 degrees, and amplitude decibels: 20log*** (unit dB) when the direction of FIG. 4) draw out the wave direction is 0 degrees, with the increase of the number of array elements, when N=16, N=32 pattern, and the change of direction is described )

说明：  基于matlab的语音信号提取与处理程序(Based on matlab voice signal extraction and processing procedures)

说明：  qpsk 求误码率（BER:Bit Error Rate）．用Matlab绘出BER的图，并与理论曲线比较．(qpsk seek error rate (BER: Bit Error Rate). BER graph drawn by Matlab, and compared with the theoretical curve.)

hvac transmission lines system