In the second part of the paper,comparision is made between the method and DFT and FFT,which is mainly about the computation quantity,the computation precision and the hurdle effect,all of which incarnates the characteristic of this estimating(method).

• 着重在计算量、计算精度、栏栅效应上与离散傅里叶变换(discreteFourier transform,DFT)及快速傅里叶变换(fast Fourier transform,FFT)分别做了比较,结果表明:在估算短数据个别频点的频谱时,该方法有优于DFT及FFT的特点。