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Range–Velocity Estimation Bounds for Nonuniform Sonar Comb Signals | IEEE Journals & Magazine | IEEE Xplore

Range–Velocity Estimation Bounds for Nonuniform Sonar Comb Signals


Abstract:

This paper focuses on wideband Doppler-sensitive nonuniform frequency comb signals for sonar. Cramér-Rao bounds are derived for joint estimation of target range and veloc...Show More

Abstract:

This paper focuses on wideband Doppler-sensitive nonuniform frequency comb signals for sonar. Cramér-Rao bounds are derived for joint estimation of target range and velocity for comb signals with arbitrary frequency distribution in a fading channel with noise. Performance of matched filtering, rank-enhanced spectral smoothing, and maximum-likelihood-based estimation techniques is compared to the bounds for a nonuniform coprime comb signal. Bounds for coprime and uniform combs are compared exposing how bandwidth extent and tone count impact performance.
Published in: IEEE Transactions on Aerospace and Electronic Systems ( Volume: 54, Issue: 6, December 2018)
Page(s): 2980 - 2991
Date of Publication: 15 May 2018

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