456

利用相关函数求信号功率谱,信号的自相关函数及不同信号的互相关函数(Use of correlation function for the signal power spectrum, the signal of the autocorrelation function and different signal cross-correlation function)

说明：  对ask调制解调过程进行了matlab仿真，程序完整！(Ask modulation and demodulation process of a matlab simulation of a complete program!)

最小数据量法计算李雅普诺夫常数，给出matlab下的源代码(The minimum amount of data calculated Lyapunov constant, given the source code under matlab)

用AR模型和KARMAN功率谱对脉动风进行模拟，在此基础上叠加平均风，得到风序列(KARMAN power spectrum with AR model and simulate the fluctuating wind , the average wind overlay, get wind sequence)

信号处理书中所附光盘，包括各个章节，很全，大部分能直接拿来用，很实用(The book accompanying CD-ROM signal processing, including various chapters, it is the whole, most can be brought directly to use, very practical)

说明：  用中文书，非常详细的讲解了3相交流电的基础知识，对实际实用很有帮助！(Chinese books, explained in great detail the basics of 3-phase alternating current, the actual practical help!)

在这项工作中所使用的方法是基于一个由大卫阿诺德教程。 http://online.redwoods.cc.ca.us/instruct/darnold/diffeq/logistic/logistic.pdf 这将运行该Logistic.m带来了图形用户界面。 1。放弃在列的格式文本文件中的x值 2。放弃在山口格式文本文件中的y值 3。的阴谋初始 按钮将绘制的分布 4。 查找适合 按钮，会找到最适合 5。 重置 将删除的情节（虽然我想打扫所有的领域 -没有时间） 5。地下K，糖尿病在下列公式中的值 Ÿ 等于k/（1+进出口（- G *的（十型录））） 6。上证所给出了squred误差之间的拟合函数与实际数据的总和 7。消委会提供的相关合作关系的实际数据拟合功能和效率(The method used in this work is based on a tutorial by David Arnold. http://online.redwoods.cc.ca.us/instruct/darnold/diffeq/logistic/logistic.pdf RUN The Logistic.m this will bring up the GUI. 1. Give the x values on a text file in column format 2. Give the y values on a text file in col format 3. Plot Initial Button will plot the distribution 4. Find Fit button will find the best fit 5. Reset will remove the plot (Although I wanted to clean all the fields- did not have time) 5. K, G, Dm are the values in the following equation y = K./(1+exp(-G*(x-Dm))) 6. SSE gives the sum of squred error between the fitted function and the actual data 7. CC give the correlation co-efficient between the fitted function and actual data)

可进行图像分割 对于光纤图像 可分别初芯婧与外套(Image segmentation can be performed separately for the beginning of the image fiber core and the jacket Jing)

此函数用于产生脉冲超宽带系统的训练序列的波形。输出参数有三个：bits--发送的数据,stx--发送的信号,ref--参考信号 发送端调制方式为TH-PAM(The emerging ultra-wideband (UWB) system offers a great potential for high data rate wireless multimedia applications of the home entertainment and industry, as well as for low data rate sensor networks involving low power devices~cite{paragraph1}. One of the most acute challenges in realizing these potentials of the UWB systems is the timing acquisition. Timing errors as small as fractions of a nanosecond could seriously degrade the system performance~cite{paragraph21}. The difficulty in UWB synchronization arises from UWB signals being the ultrashort low-duty-cycle pulses operating at very low power density.)

ethernet code usiing matlb needs communication block set