摘要
本文提出一种新的快速测量正弦信号频率的方法,它主要利用三次多项式插值函数来拟合经过DFT变换的数据点,然后通过求插值函数的极值点来进行频率估计。仿真结果证明方法的有效性和简便性,并对其CPLD快速实现进行探讨。
A simple effective frequency estimation method is proposed using cubic convolution. This method needs only four data calculated by DFT. The performances of the method is illustrated by computer simulations.
出处
《信号处理》
CSCD
2003年第4期316-318,共3页
Journal of Signal Processing