digital_sig

The Real-coded genetic algorithm to find unknown value or estimated value.

因子分析是指研究从变量群中提取共性因子的统计技术。最早由英国心理学家C.E.斯皮尔曼提出。因子分析可在许多变量中找出隐藏的具有代表性的因子。将相同本质的变量归入一个因子，可减少变量的数目，还可检验变量间关系的假设。(Factor analysis is the study of common factors extracted from the variable group statistical techniques. First proposed by British psychologist CE Spearman. Factor analysis can identify a representative factor to hide many variables. Will be essentially the same variables into one factor, can reduce the number of variables, but also test the hypothesis that the relationship between variables.)

说明：  阵列信号处理，采用遗传算法对阵列进行稀疏化处理，对于研究阵列天线的学者有帮助(Array signal processing and sparse processing with genetic algorithm are helpful to scholars who study array antenna.)

说明：  　本文在简要介绍了MA TLAB 和BP 网络的基 础上, 详细论述了在MA TLAB611 中, 如何利用其提供的神经网络工具箱实现BP 网络的设计, 最后给出了一个BP 网络的设计实例。 (This paper briefly introduced the MA TLAB and BP network based on the detail in the MA TLAB611, how to use its neural network toolbox provided realize the design of BP network, and finally gives a design example of BP network.)

绘制四种常用低通模拟滤波器（贝赛尔滤波器，巴特沃斯滤波器，切比雪夫滤波器及椭圆滤波器）幅频特性曲线(Draw four commonly used low-pass analog filter (Bessel filter, Butterworth filter, Chebyshev filter and elliptic filter) amplitude-frequency characteristic curve)

产生M序列并求其自相关，以及矩形成形和SA函数成形时的自相关(M sequency)

说明：  使用matlab编写的SOA算法，可以应用于PID参数优化整定(SOA algorithm for PID parameter tuning)

线性加速度法计算单自由度体系地震时程反应(Single degree of freedom linear acceleration method Seismic Response System)

学习matlab的好的课件，可以下载研究一下(Matlab' s a good learning courseware, you can download study)

preprocessing in fMRI