chap3

最小二乘法，无论是在工程上还是在学术上都应用越来越广泛，文章给出了一个比较好用的最小二乘matlab 实现程序，很好用下载即可运行。(Least squares method, whether in engineering or applied more widely both the academic, the article gives a least squares matlab implementation relatively easy to use program, good to run with the download.)

多孔介质内流动的格子Boltzmann方法源代码(lattice boltzmann method to simulate fluid flow in porous medium.)

merge closest floating values with a step

频谱分析中，高密度频谱和高分辨率频谱之间的区别(Spectrum analysis, the difference between the spectrum of high-density and high-resolution spectrum)

雷达信号处理中的一个重要过程：利用匹配滤波中的相关原理，对目标进行定位(Radar signal processing, an important process: the use of matched filtering principle to locate the target)

心电数据检测波形，检测PQRST波，并提取心电特征，修改参数获取更佳结果(ECG wave detection,PQRST detection)

通用三次样条插值函数，可求解离散点的三次样条插值(General cubic spline interpolation function, can solve the discrete points of the cubic spline interpolation)

emd算法，详细英文注释，程序能现实IMF各次图形(emd algorithm, in English, can realistically IMF various graphics)

压缩采样仿真实验代码，基于随机解调器，仿真功能完善(Compressive sampling simulation code, based on random demodulator perfect simulation function)

802.15.4a channel code