射线追踪法

说明：  对接受到的调制信号的特征提取，用于调制识别(automatic modulation recognition)

利用MATLAB进行信道建模仿真，包括SUI模型，Clarke/Gans模型，多径衰落仿真GUI，UWB模型，两径模型，指数PDP模型(MATLAB for channel modeling simulation, including SUI model, Clarke/Gans model, multi-path fading simulation GUI, UWB model, two-path model, index PDP mode)

值得深刻阅读的基于CP的OFDM同步程序这是一个非常好的用于OFDM的基于CP的 最大似然符号定时同步和载波同步的MATLAB仿真程序，经本人深入阅读吸收经典文献，反复编程调试而提炼而成，代码精炼有序序，绝对没有错误，由此程序仿真得到的同步曲线与经典文献完全一致。同仁们阅读此程序一定受益匪浅！ 这里不吝成果，特上载与诸位网友共享。也欢迎同仁们提供更多的优秀程序。 由于文献要求采用N＝1024个子载波 (Worthy of profound reading of the CP-based OFDM synchronization program which is a very good based on the CP maximum likelihood symbol timing synchronization and carrier synchronization for OFDM MATLAB simulation program, after I read in-depth absorption of classical literature, repeated programming and debugging and refining made, the code refined and orderly sequence is absolutely no mistake, this program simulation synchronization curves and classic literature is exactly the same. Colleagues to read this program must benefit Generous achievements, special upload to share with you friends. Also welcome colleagues to provide more excellent program. Because the literature require the use of N = 1024 subcarriers)

现代谱估计yulewalker法，现代的谱估计方法，(PSD yulewalker method，)

利用matlab实现OFDM的接收和发送，QPSK调制，IFFT串并转换(Receive and transmit OFDM, QPSK modulation, IFFT series-to-parallel conversion using MATLAB)

说明：   ()

document for OFDM system

这是矩阵计算一书的第二部分，由于是从网上下载的，两部分是分开的，没法合并，所以只好分两次上传，欢迎下载浏览。(This is the matrix of the second part of the book, as it is downloaded from the Internet, the two parts are separated, can not be combined, so only two upload, please download the browser.)

串口通讯技术实现--两台pc机通过串口通讯（C语言）并可以调整波特率，奇偶校验位等。 (Serial Communication Technology- two pc machine through serial communication (C language) and can adjust the baud rate, parity bit and so on.)

Modbus for Field Technicians 介绍modbus的相当好的资料，包括原理和编程和协议介绍(Modbus for Field Technicians introduction modbus fairly good information, including schematics and programming and protocol description)