Initial investigation of underwater acoustic channel replay errors - Archive ouverte HAL Accéder directement au contenu
Communication Dans Un Congrès Année : 2024

Initial investigation of underwater acoustic channel replay errors

Résumé

Channel estimation plays an important role in underwater acoustic communications, with applications in phase-coherent modulation schemes and preparation of replay channels. Quantifying the estimation error is a challenge, however, as the true channel remains unknown. This paper introduces the channel replay error (CRE) as the difference between a test signal passed through an at-sea or synthetic ocean channel, and the same signal passed through the replay channel. The CRE is investigated for popular probing waveforms and estimation methods, including correlative channel sounders and (sparse) adaptive algorithms. By necessity, the test signal for at-sea data is the probing waveform. This potentially reproduces any type of in-band acoustic power, including noise, and can yield an overoptimistic CRE. Synthetic channels allow CRE computation for arbitrary reference waveforms, which yields valuable insights.
Fichier sous embargo
Fichier sous embargo
0 5 2
Année Mois Jours
Avant la publication
mercredi 19 février 2025
Fichier sous embargo
mercredi 19 février 2025
Connectez-vous pour demander l'accès au fichier

Dates et versions

hal-04672794 , version 1 (19-08-2024)

Identifiants

  • HAL Id : hal-04672794 , version 1

Citer

Paul van Walree, François-Xavier Socheleau. Initial investigation of underwater acoustic channel replay errors. Underwater Communications and Networking Conference (Ucomms), Sep 2024, Sestri Levante, Italy. ⟨hal-04672794⟩
0 Consultations
0 Téléchargements

Partager

Gmail Mastodon Facebook X LinkedIn More