ESPRITWED-UG and AV-ESPRITWED: Two new linear subspace algorithms for time delay estimation

Author

Le Bastard, Cedric ; Baltazart, Vincent ; Yide Wang ; Derobert, Xavier ; Saillard, Joseph

Author_Institution

Inst. de Rech. en Electrotech. et Electron. de Nantes Atlantique, Nantes, France

fYear

2008

fDate

25-29 Aug. 2008

Firstpage

1

Lastpage

5

Abstract

Two improvements of the “linear ESPRIT” algorithm in [1] are proposed and applied to the time delay estimation (TDE) from radar data within the microwave range. At first, “linear ESPRIT” is adapted to the TDE. Then, two new linear subspace algorithms, namely ESPRITWED-UG (ESPRIT Without EigenDecomposition) and AV-ESPRITWED (AVerage ESPRIT Without EigenDecomposition) are proposed. Contrary to [1], both algorithms take the whole bandwidth into account. Computer tests enable to assess the performances of the algorithms on the measurements of the layer thickness of civil engineering materials from GPR data. The new methods show improved noise robustness and smaller standard deviation in comparison with linear ESPRIT [1] and SWEDE [2].

Keywords

civil engineering computing; delay estimation; ground penetrating radar; materials science computing; radar applications; radar signal processing; signal classification; thickness measurement; AV-ESPRITWED; ESPRIT without eigendecomposition; ESPRITWED-UG; GPR data; TDE; average ESPRIT without eigendecomposition; civil engineering materials; layer thickness measurements; linear ESPRIT algorithm; linear subspace algorithm; noise robustness; performance assessment; radar data; time delay estimation; Covariance matrices; Delay effects; Estimation; Noise; Signal processing algorithms; Vectors;

fLanguage

English

Publisher

ieee

Conference_Titel

Signal Processing Conference, 2008 16th European

Conference_Location

Lausanne

ISSN

2219-5491

Type

conf

Filename

7080277