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Journal Articles IEEE Transactions on Signal Processing Year : 2011

On the Blind Estimation of Chip Time of Time-Hopping Signals Through Minimization of a Multimodal Cost Function

Abstract

In this correspondence, we focus on blind estimation of the chip duration of time-hopping signals by introducing a cost function based on time-of-arrival (ToA) folding over multiple observation sets. An opti- mization algorithm that takes advantage of the highly oscillatory behavior in the nearby of the global minimum is proposed and a performance bound for the chip time estimate is derived. The pertinence of our approach is shown through numerical results, considering alternative methods like pe- riodogram and separable least squares line search. The proposed technique enables a good tradeoff between statistical accuracy and computational complexity.
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Dates and versions

hal-00657241 , version 1 (15-05-2024)

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Mihai Stanciu, Stéphane Azou, Alexandru Serbanescu. On the Blind Estimation of Chip Time of Time-Hopping Signals Through Minimization of a Multimodal Cost Function. IEEE Transactions on Signal Processing, 2011, 59 (2), pp.842-847. ⟨10.1109/TSP.2010.2090872⟩. ⟨hal-00657241⟩
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