xianxingyucefengxi

Z-transform, like the Laplace transform, is an indispensable mathematical tool for the design, analysis and monitoring of systems. The z-transform is the discrete-time counter-part of the Laplace transform and a generalization of the Fourier transform of a sampled signal. Like Laplace transform the z- transform allows insight into the transient behavior, the steady state behavior, and the stability of discrete-time systems. A working knowledge of the z-transform is essential to the study of digital filters and systems.

本毕业设计用Matlab中的建模仿真工具Simulink对通信原理实验进行仿真。作为系列实验的第一部分，包括模拟信号的线性调制解调(AM、DSB、SSB)过程、扰码与解扰实验和低通信号的抽样定理实验。论文中讲述了Matlab的基础知识、Simulink仿真操作方法以及在通信系统中的应用，对被仿真实验的基本原理也进行了简要介绍。 通过本设计对构造通信原理虚拟实验室这一课题进行了初步的探索。(design with the graduation of Matlab Simulink modeling and simulation tools for Progressive Communications principle experiment OK simulation. As the first series of experiments, including a linear analog signal modulation and demodulation (AM, DSB, SSB) process. encryption code and experimental communications, and low sampling theorem experiment. Papers on the basis of Matlab knowledge, Simulink operation and the communication system, the application Simulation experiments on the basic principle was also briefly introduced. Through the design of communication principle structure of the virtual laboratory conducted a preliminary exploration.)

利用matlab来实现工程光学里面一些实例，让学生们更容易了解这门学科的更实质性的问题！(Using matlab to achieve engineering optics inside some examples, so that students are more likely to understand this discipline more substantive issues!)

ex2_1 利用Z变换求系统输出 ex2_2 求DFT ex2_3 求序列的圆周移位 ex2_4 求序列的圆周卷积 ex2_5 简单的DFT实例(ex2_1 seeking to use the Z-transform system output ex2_2 seeking DFT ex2_3 find the circumference of the shift sequence ex2_4 find circular convolution sequence ex2_5 simple example of DFT)

Text to speech code in matlab

基于db2小波包的信号分解，便于理解，方便阅读(Db2 wavelet packet-based signal decomposition, easy to understand, easy to read)

计算以Nomoto模型为基础的船只控制传递函数，需要输入相应的船只参数(This program is used to calculate the ship control transfer function based on the Nomoto model, and we need to input the corresponding ship parameters.)

二维FDTD TE波圆柱仿真 频率 波长 圆柱的周长，改变圆柱的尺寸 每最小波长20个采样点 划分的网格数(Two dimensional FDTD TE wave cylindrical simulation frequency wavelength cylindrical perimeter, change the size of the minimum wavelength of each cylinder of20 sampling points of grid number)

I found this code internet and i try this code. maybe you can try

本程序模拟了无线通信中常用的AWGN，瑞利信道模型！！！！(This procedure simulates the wireless communications commonly used in AWGN, Rayleigh channel model! ! ! !)