numerical-analysis-matlab-code

对曲线进行了拟合 可以自动成图处理 很不错的算法(Of the curve were fitted to deal with a very good automatic mapping algorithm)

语音信号中用语谱图来直观的表示信号随时间变化的频谱特性。(Speech signal in terms of spectrum to visually represent the signal time-varying spectrum characteristics. )

这个程序用来模拟windows计算器,为薜定宇老师<<科学运算语言MATLAB5.3程序设计与应用>>的习题而做(It is suitable for beginners to master matlab deep into the second developed a good teaching examples of great reference value)

Scott (1992) lead to better large sample performance of the histogram.

说明：  语音信号的延时和混响设计 语音信号的延时和混响设计(signal delay )

Old analasys of ECG updateted recently , having noise problem

根据MATLAB进行基本的超宽带信号的仿真(According to MATLAB basic simulation of ultra-wideband signals)

the is a code compression image in matlab

说明：  matlab的信号处理工具箱；内含高阶谱函数，如双谱等，使用很方便(matlab toolbox,hosa,Higher-Order Spectral Analysis Toolbox)

霍夫曼编码的具体方法：先按出现的概率大小排队，把两个最小的概率相加，作为新的概率 和剩余的概率重新排队，再把最小的两个概率相加，再重新排队，直到最后变成1。每次相 加时都将“0”和“1”赋与相加的两个概率，读出时由该符号开始一直走到最后的“1”， 将路线上所遇到的“0”和“1”按最低位到最高位的顺序排好，就是该符号的霍夫曼编码。(Specific methods Huffman coding: the probability of emergence of the size press line, the two smallest sum probability, as a new probability and the probability of re-queue the remaining, then the minimum of two probabilities are added, and then re-queue, until finally become one. Each time the sum will be 0 and 1 Fu added two probabilities, when read by the symbol has come to begin the final 1 , the route will encounter a 0 and 1 at the lowest to the highest bit of the right order, that is the symbol of the Huffman coding.)