摘要
本文提出了参差滞差的自相关函数和它的功率谱密度的富里叶变换对;论述了参差周期功率谱密度的一些基本特性。基于4种等周期的谱估计(BT、LP、ML和LSR)和该参差周期功率谱密度,本文说明了相应的4种参差周期谱估计的原理,评价了它们的性能并给出了一些应用的例子。
This paper presents a Fourier transform pair of a stagger-lag autocorrelation function and its power spectral density (PSD). Some fundamental properties of the stagger-period PSD are discussed. Based on four types of spectrum estimation with uniform periods (BT, LP, ML and LSR) and the stagger-period PSD, this paper describes the principles of the corresponding spectrum estimation with stagger periods, appraises their performances, and gives some application examples.
出处
《电子学报》
EI
CAS
CSCD
北大核心
1993年第1期90-96,51,共8页
Acta Electronica Sinica
关键词
功率谱
时间序列
杂波谱
Power spectrum estimation, Time series analysis, Clutter spectral properties
