【摘要】 为了提高正弦波信号频率和幅值的频域估计精度,提出了窗函数迭代逼近方法.Matlab仿真结果表明,该方法切实可行,估计精度可以提高4~5个数量级,且与频率偏差δ基本无关.更多还原

【Abstract】 To improve the estimation precision of sinusoid signal frequency and amplitude in frequency-domain,a new method using function of window iterative algorithm is presented.The simulation of Matlab shows that this method is feasible,and the estimation precision can be improved by magnitude of 4-5 orders and is irrelative with frequency errerd.更多还原