Finite-Element-Procedures

，用MATLAB实现快跳频通信系统的仿真。主要应用了SIMULINK和COMMUNICATION BLOCKETS两个模块。整个设计包括了信源产生部分、发送部分、跳频调制部分、信道部分、接收部分和结果分析部分共六个模块，核心技术是伪随机序列的产生和频率合成器的设计，而关键技术是收发两端的伪随机码元的同步。伪随机码的产生用S－函数编程来开发自己的SIMULINK模块。同步的实现是收发两端采用相同的扩频脉冲触发。而且在设计中每个模块都采用了模块封装技术，从而简化了框图结构(Using MATLAB to achieve fast frequency-hopping communication system simulation. The main use of SIMULINK and COMMUNICATION BLOCKETS two modules. The whole design, including part of the generated source, sending part of some frequency-hopping modulation, channel of the receiving part and the results of analysis of part of a total of six modules, the core technology is the emergence of pseudo-random sequence and frequency synthesizer design, and the key technology is the transceivers at both ends of the pseudo-random synchronization symbol. Pseudo-random code generated by S-function programming to develop their own modules SIMULINK. Synchronization is used to send and receive ends of the same spread-spectrum pulse trigger. But also in the design of each module using the module packaging technology, which simplifies the structure of the diagram)

说明：  通信系统仿真与分析中经常用到的高斯白噪声的产生方法(Communication System Simulation and Analysis in the frequently used Gaussian white noise, the method of)

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包含三个PDF文件，介绍Matlab在信号处理、科学计算、图像处理三个方面的应用，有讲解和代码示例(Contains three PDF files, presentation Matlab in signal processing, scientific computing, image processing, three aspects of the application, there are explanations and code examples)

带有时滞的DMC算法，可以修改参数，包括传递函数，优化时域，控制时域等等(DMC algorithm with Delay)

数字通信QAM调制的MATLAB仿真程序

本文主要介绍了如何在MATLAB中创建s函数，s函数的定义、功能以及如何正确的编写s函数，从而简化MATLAB的编程，使MATLAB模块更加清晰。(this passage mainly describe the s function in MATLAB about creating this function and how to use this function)

This code is the Navier Method for analyzing a plate for those who are familiar with the theory of "plates and shells".

These source codes performs matlab codes for Continues Time Fourier Transform (CTFT), Continues Time Fourier Series (CTFS).

Die Computertomographie (CT) hat seit ihrer Einfuhrung im Jahr 1972 [22] die medizinische Bildgebung revolutioniert. Die raumliche Abbildung gesamter Patientenvolumina mit hoher Genauigkeit und quantitativ verwertbaren Bildern ist ein immenser Vorteil gegenuber herkommlichen bildgebenden Verfahren in der Medizin wie z.B. der konventionellen Rontgendiagnostik. Die Entwicklung von kontinuierlich rotierenden CT Systemen und der darauf folgenden Einfuhrung der Spiral CT im Jahr 1989 [38, 40] mit der Moglichkeit, komplette Volumina wahrend einer Atempause zu scannen, steigerte die Bedeutung der Computertomographie noch mehr.