OMP-type Algorithm with Structured Sparsity Patterns for Multipath Radar Signals - Archive ouverte HAL Accéder directement au contenu
Pré-Publication, Document De Travail Année : 2011

OMP-type Algorithm with Structured Sparsity Patterns for Multipath Radar Signals

Résumé

A transmitted, unknown radar signal is observed at the receiver through more than one path in additive noise. The aim is to recover the waveform of the intercepted signal and to simultaneously estimate the direction of arrival (DOA). We propose an approach exploiting the parsimonious time-frequency representation of the signal by applying a new OMP-type algorithm for structured sparsity patterns. An important issue is the scalability of the proposed algorithm since high-dimensional models shall be used for radar signals. Monte-Carlo simulations for modulated signals illustrate the good performance of the method even for low signal-to-noise ratios and a gain of 20 dB for the DOA estimation compared to some elementary method.
Fichier principal
Vignette du fichier
OMP_radar.pdf (206.42 Ko) Télécharger le fichier
Origine Fichiers produits par l'(les) auteur(s)
Loading...

Dates et versions

hal-00580140 , version 1 (26-03-2011)

Identifiants

Citer

Tabea Rebafka, Céline Lévy-Leduc, Maurice Charbit. OMP-type Algorithm with Structured Sparsity Patterns for Multipath Radar Signals. 2011. ⟨hal-00580140⟩
224 Consultations
258 Téléchargements

Altmetric

Partager

Gmail Mastodon Facebook X LinkedIn More