摘要
本文提出了一种利用DTFT变换获得信号的(离散时间傅里叶变换)幅频特性来进行频率估计的方法。文章论证了算法原理,介绍了关键步骤(正交变换)的实现方法,并与同类方法比较给出了若干仿真结果,说明了本算法的优势及局限。
A method of estimating the frequency by using the DTFT（Discrete Time Fourier Transform） to obtain the amplitude-frequency characteristics of a signal is presented.The algorithm principle is expounded,and the implementing method of its crucial steps（orthogonal transform） is introduced.Some simulation results are given to show the advantages and limitations of this algorithm comparing with its similar methods.
出处
《火控雷达技术》
2009年第4期37-39,44,共4页
Fire Control Radar Technology
关键词
测频
正交变换
DTFT
test frequency
orthogonal transform
DTFT
