本系统基于TI公司的MSP430系列芯片，结合模拟电路实现市电频率、电压、电流以及电压和电流之间相位差的测量。通过对市电波形的采集，系统还完成有功功率、无功功率的计算以及波形频谱的分析。-The system is based on TI' s MSP430 family of chips, combining analog circuit realization of the city of frequency, voltage, current and phase difference

A window function design FIR digital band-pass filter, Monte Carlo simulation method of calculating the American option price and basic descr iption, Including the final calculation of the compressed image peak signal to noise ratio and compression o