ber_bpsk

本人亲手做的一个matlab扩频通信系统simulink仿真系统。从发送端到接收到，每部分都相应得加了示波器或频谱仪，可以对照理论清楚观察到信号发生的变化。matlab6.5及以上版本上运行。(I personally make a matlab Spread Spectrum Communication System simulink simulation system. Send-ended to receive from every part of a corresponding increase in the oscilloscope or spectrum analyzer can be clearly observed in the control theory of signal changes. matlab6.5 and above to run.)

用root—music方法计算正弦信号的频率估计(root-music )

trajetory of mobile robot

matlab程序，用于计算振动测试中歪度与峭度的函数。(matlab program, used to calculate the vibration test skewness and kurtosis of the function.)

ultra wide band frequency transmission between two channels with high data transfer rate

Data files are in Matlab format. Each file contains fan and drive end vibration data as well as motor rotational speed. For all files, the following item in the variable name indicates: DE - drive end accelerometer data FE - fan end accelerometer data BA - base accelerometer data time - time series data RPM- rpm during testing

奇异值分解及欧式距离计算，两组数据之间的计算(singular and calculate distense)

线性分类器设计-感知机算法，对一组数据进行分类，分析w不同时的影响(Linear classifier design- Perceptron Algorithm)

一个OFDM同步的程序，包括发送，接收程序(An OFDM synchronization process, including sending, receiving procedures)

水声通信面临的最困难的问题是多途干扰,其中自多途引起接收信号的幅度衰落,互多途引起接收信号的码间干扰,再加上海洋环境的高噪声背景、低的载波频率、极为有限的带宽以及传输条件的时间—空间—频率变化特性,使得通信过程十分困难。此外，水声通信试验的成本高，难度大，也为水声通信研究带来挑战。 本软件对水声信道的仿真研究很有帮助，可以产生声线图，冲激响应，声速图等仿真文件，结合Matlab画图工具绘制图像，对水声信道的模拟仿真很有帮助。(The most difficult problem faced by underwater acoustic communication is multi-path interference, which since multipath fading caused by the magnitude of the received signal, and mutual inter-symbol interference caused by multipath signal reception, plus the marine environment of high background noise, low carrier frequency , very limited bandwidth and transmission conditions of time- space- frequency characteristic such that the communication process is very difficult. In addition, the high cost of underwater acoustic communication experiment, difficult, and challenges for the study of underwater acoustic communication. This software is useful for simulation study of underwater acoustic channel can produce sound chart, impulse response, sound velocity diagrams simulation files, combined with Matlab drawing tools to draw the image of underwater acoustic channel simulation helpful.)