【摘要】 利用MATLAB5.3软件对一种快速精密测量畸变电功率方法进行数字仿真,通过一畸变功率的仿真计算,验证了此方法的可行性和精确性.从仿真可知,当对p(t)平均功率的测量归结为用FIR数字滤波对畸变功率进行滤波且输入信号一定时,算法的准确度取决于窗函数对各次谐波的衰减性能.更多还原

【Abstract】 This paper makes use of the software of MATLAB 5.3 to simulate a kind of method to fast and exactly measure the distorted power.The simulation verifies the possibility and accuracy of this method.From the simulation,when measuring average power is reduced to filtering the distorted power using FIR digital filter and when input signal is certain,the exactness of calculation is decided by windows function and the attenuation performances of various harmonic waves.更多还原