Sect6_3figs

2004China Undergraduate Mathematical Contest in Modeling (CUMCM)是2004年全国数学建模大赛的题目（B题）。现将题目，建模过程及利用“多元线性回归和人工神经网络”解题的源代码上传给大家一起分享。(2004China Undergraduate Mathematical Contest in Modeling (CUMCM) 2004 National Mathematical Modeling Contest of Title (B items). The topic, modeling process and the use of )

说明：  BP source code for matlab

信号实时处理，查找实时接收到的信号的幅值最大点并标记(real-time signal processing，max amplitude point)

理想低通滤波器滤波器截止角频率wc，阶数Me(filter function hd=ideal_lp(wc,Me))

基于虚拟力的无线传感器网络覆盖算法，完整可靠，可直接输出结果(Wireless sensor network coverage algorithm based on virtual force, complete and reliable, and can output directly)

GUI和SIMULINKDE 结合 设计出的一个界面( com in http://www.iLoveMatlab.cn )

说明：  analysis of ber in fbmc and ofdm

mallat算法比较完整的描述，启发文献(mallat algorithm description document)

文件1：复数的表达与计算；文件2：用matlab计算∛ (-8)，并用图形表示；文件3：用符号计算研究方程sin(3)uz^2+vz+3w-a5=0的解；文件4：求阿基米德螺线r=a*θ,(a>0)在θ=0到φ间的曲线长度函数，并求a=1,φ=2п间的曲线长度；文件五：著名的Givens旋转G=[■(cos t&-sin t@sin t&cos t)]对矩阵A=[■(√3/2&1/2@1/2&√3/2)]的旋转作用。(five programs about matlab)

A practical system for improved efficiency in frequency division multiplexed wireless networks