Chapter01

Twincat dali Programierung

空间信号的波达方向（Direction of Arrival，简称DOA）估计作为阵列信号处理研究的一个主要课题，在近些年来越来越得到大量的关注和研究。它可实现对空间中信源信号的准确的角度估计，实现信源方位等参数的具体精确检测，并且还具有很高的分辨力。这些特性使得DOA估计在声呐、通信及雷达等多种领域具有广阔的应用和发展前景。此程序为经典doa估计方法esprit算法。(direction of arrival,usually called DOA,has been an important subject recently.This program contains esprit)

说明：  读取音频，采用分帧处理，最后使用广义互相关算法求时延(Reading audio, adopting framing process, and finally using generalized cross-correlation algorithm to calculate time delay)

QSB example in Labview 8.6

Electro Magnetic Theory Tutorial Questions & solutions

说明：  PSF点扩展函数生成器 用于去卷积图像处理(Point extension function generator)

说明：  这是三机九节点系统潮流计算的模型，适合于初学者了解潮流计算。是在matlab/simulink下建立的模型，非常直观。(This is the model of 3-generator 9-bus system which can be used to calculate the power flow)

source code for computer rental shop system

Flash游来游去的鱼，Flash制作跟随鼠标游动的金鱼动画，非常逼真的金鱼动画效果，并且跟随鼠标游动，Flash源文件没有细看，或许里面用了比较多的ActionScript动作脚本。

80C51的串行通信口是一个功能强大的通信口，而且是相当好用的通信口，用于显示驱动电路再合适不过了，下面我们就根据这种需要设计一个用两个串行通信口线加上两根普通I/O口，设计一个4位LED显示电路。当然只要再加上两根I/O口线即可轻易实现8位LED的显示电路。 -80C51 Serial Communications mouth is a powerful communications mouth, but is very handy communications mouth, for the display driver circuit could not have been more appropriate, Now we need to design the basis of this one with two serial communication lines with two general I/O Hau, Design of a four LED display circuit. Of course if coupled with two I/O lines I could easily achieved eight LED display circuit.