Spectral selection of very-low frequencies processes

被引：1

作者：

Sytnik, O.V. ^{[1
]}

Vyazmitinov, I.A. ^{[1
]}

Myroshnychenko, Ye.I. ^{[1
]}

Kopylov, Yu.A. ^{[1
]}

机构：

[1] A. Usikov Institute of Radio Physics and Electronics, National Academy of Sciences of Ukraine, Kharkiv 61085, 12, Academician Proskura Str.

来源：

Telecommunications and Radio Engineering (English translation of Elektrosvyaz and Radiotekhnika) | 2009年 / 68卷 / 02期

关键词：

Compendex;

D O I：

10.1615/TelecomRadEng.v68.i2.50

中图分类号：

学科分类号：

摘要：

Targets selection method based on the attribute of Doppler painting of the echo-signal phase structure is considered in the paper. The concept of orthogonal decomposition of the signal and precise representation of the function upon a discrete set of points using the full system of basis functions forms up the base of the method. The algorithm for calculation of the spectral estimates upon a limited in time selection of the signal is developed. The algorithm allows calculate spectral estimates of quasi-periodic processes with typical frequencies from 0.1 to 10 Hz. Stability and noise immunity of the algorithm are investigated. It is demonstrated that unlike the known methods of spectral super-resolution the suggested method does not provide for false spectral responses at decreasing of the signal-to-noise ratio. © 2009 Begell House, Inc.

引用

页码：137 / 144

页数：7

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