Brownian_motion_process

说明：  一个关与电力系统9节点的用于暂态分析的matlab程序。(Clearance with a 9-node power system transient analysis for the matlab procedures.)

关于BP网络权值-误差关系并分析作图小程序(About BP network weights- Error relationships and analyze mapping applet)

数字信号处理--理论与实践 王大伦 数字信号处理--理论与实践 王大伦(Digital Signal Processing- Theory and Practice Wang Tailun)

高光谱图像的nfindr算法用于端元提取(gaoguangputuxiangdenfindrsuanfayongyuduanyuantiqu)

说明：  很实用的MATLAB程序 解决TSP问题(MATLAB program is very useful to solve TSP problem)

对两组离散数据进行分段线性拟合,并显示拟合结果(piecewise linear fitting of two sets of discrete data)

其中包括了matlab中最基本的算法院程序，对于编程有很大帮助(Matlab including the operator of the most basic court procedures, the program will be of great help)

High voltage electricity use, short-circuit fault indicator! Sensor plus display instrument procedures

OFDM很容易在具有时延扩展或等效频率选择性的信道上使用。 频率选择性信道的特征在于延迟扩展或相干带宽，其测量频率中的信道去相关。 相干带宽与均方根（RMS）时延扩展成反比。 通过选择与信道相干带宽相关的子载波间隔，OFDM可以用于将频率选择性信道转换成频率平坦子信道的并行集合。 适合于平坦衰落信道的技术可以直接应用。(OFDM is simple to use on channels that exhibit time delay spread or, equivalently, frequency selectivity. Frequency selective channels are characterized by either delay spread or coherence bandwidth which measures the channel decorrelation in frequency. The coherence bandwidth is inversely proportional to the root-mean-square (rms) delay spread. By choosing the sub-carrier spacing properly in relation to the channel coherence bandwidth, OFDM can be used to convert a frequency selective channel into a parallel collection of frequency flat subchannels. Techniques that are appropriate for flat fading channels can then be applied in a straight forward fashion.)

采用DIT和DIF两种蝶形算法实现的FFT变换，其中myfft1是DIT算法，myfft2是DIF算法，已经过测试，可以方便使用。(DIT and DIF using two algorithms of FFT butterfly transformation, which myfft1 is DIT algorithm, myfft2 is the DIF algorithm, has been tested, it will be convenient to use.)