Signal Subspace Smoothing Technique for Time Delay Estimation Using MUSIC Algorithm - Archive ouverte HAL Accéder directement au contenu
Article Dans Une Revue Sensors Année : 2017

Signal Subspace Smoothing Technique for Time Delay Estimation Using MUSIC Algorithm

Résumé

In civil engineering, Time Delay Estimation (TDE) is one of the most important tasks forthe media structure and quality evaluation. In this paper, the MUSIC algorithm is applied to estimatethe time delay. In practice, the backscattered echoes are highly correlated (even coherent). In order toapply the MUSIC algorithm, an adaptation of signal subspace smoothing is proposed to decorrelatethe correlation between echoes. Unlike the conventional sub-band averaging techniques, we proposeto directly use the signal subspace, which can take full advantage of the signal subspace and reducethe influence of noise. Moreover, the proposed method is adapted to deal with any radar pulse shape.The proposed method is tested on both numerical and experimental data. Both results show theeffectiveness of the proposed method.
Fichier principal
Vignette du fichier
sensors-17-02868-v2.pdf (1.3 Mo) Télécharger le fichier
Origine : Publication financée par une institution

Dates et versions

hal-01664063 , version 1 (08-04-2024)

Identifiants

Citer

Meng Sun, Yide Wang, Cédric Le Bastard, Jingjing Pan, Yuehua Ding. Signal Subspace Smoothing Technique for Time Delay Estimation Using MUSIC Algorithm. Sensors, 2017, 17 (12), pp.2868. ⟨10.3390/s17122868⟩. ⟨hal-01664063⟩
218 Consultations
0 Téléchargements

Altmetric

Partager

Gmail Facebook X LinkedIn More