复化三点Gauss-lengend公式求pi，基于kaiser窗的双谱线插值FFT谐波分析，利用matlab GUI实现的串口编程例子，包括最小二乘法、SVM、神经网络、1_k近邻法,通过matlab代码，多目标跟踪的粒子滤波器，进行波形数据分析。- Complex of three-point Gauss-lengend the Formula pi, Dual-line interpolation FFT harmonic analysis kaiser windows, Use serial programming examples matlab GUI implementation, Including the least squares method, the SVM, neural networks, 1 _k neighbor method, By matlab code, Multi-target tracking particle filter, Waveform data analysis.