DocumentCode
1556669
Title
Synthesis of Optimum Chirp Signals for the Time Delay Superresolution
Author
Monakov, Andrei
Author_Institution
Dept. of Radio Eng., St. Petersburg State Univ. of Aerosp. Instrum., St. Petersburg, Russia
Volume
48
Issue
3
fYear
2012
fDate
7/1/2012 12:00:00 AM
Firstpage
2739
Lastpage
2746
Abstract
The Cramer-Rao bound for the variances of time delay estimates of two interfering signals is determined. It is shown that in superresolution area the bound depends on algebraic moments of the signal energy spectrum and signal-to-noise ratio (SNR). The bound can be used to find an optimum signal waveform to achieve the potential time delay superresolution. A new methodology is proposed to search for parameters of the polynomial frequency modulation of chirp signals.
Keywords
polynomials; signal processing; Cramer-Rao bound; SNR; algebraic moments; optimum chirp signal synthesis; optimum signal waveform; polynomial frequency modulation; signal energy spectrum; signal-to-noise ratio; time delay estimates; time delay superresolution; Correlation; Delay effects; Energy resolution; Frequency modulation; Signal resolution; Signal synthesis; Signal to noise ratio;
fLanguage
English
Journal_Title
Aerospace and Electronic Systems, IEEE Transactions on
Publisher
ieee
ISSN
0018-9251
Type
jour
DOI
10.1109/TAES.2012.6237625
Filename
6237625
Link To Document