摘要
分析了各种正弦频率的估计方法;提出了一种同时利用隐含在离散傅里叶变换(discrete Fourier transform, DFT)谱线中的幅度信息和相位信息,克服DFT估计频率栏栅效应的方法,有效地提高了频率的估计精度;仿真结果证明了该方法的有效性.
The paper analyzes some methods estimating the frequency of a sinusoid. A method of using the connotative amplitude and phase information of DFT is presented. The method overcomes the bar-effect when using DFT to estimate the frequency. And the method also improves the estimation accuracy of the frequency. Simulation results demonstrated the validity of the method.
出处
《装备指挥技术学院学报》
2003年第6期68-70,共3页
Journal of the Academy of Equipment Command & Technology
