Analysis of the impact of ASCAT's pulse compression

Xavier Neyt, Nicolas Manise, Marc Acheroy

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Résumé

The primary measurement objective of the Advanced Scatterometer ASCAT, a spaceborne real aperture C band radar, is the determination of wind fields at the ocean surface. Unlike AMI instruments on-board ERS satellites, ASCAT uses long transmit pulses with linear frequency modulation (chirps) allowing the application of low peak transmission power while retaining a high SNR. A pulse-compression is performed on the received signal. This paper will focus on the impact of the use of pulse compression in particular on the location accuracy of the samples in presence of external perturbations. An eventual location error has important consequences on the normalization as well as on the geolocation of the measured data.

langue originaleAnglais
titreRemote Sensing of the Ocean, Sea Ice, and Large Water Regions 2006
Nombre de pages8
Les DOIs
étatPublié - 2006
EvénementRemote Sensing of the Ocean, Sea Ice, and Large Water Regions 2006 - Stockholm, Sucde
Durée: 11 sept. 200613 sept. 2006

Série de publications

NomProceedings of SPIE - The International Society for Optical Engineering
Volume6360
ISSN (imprimé)0277-786X

Une conférence

Une conférenceRemote Sensing of the Ocean, Sea Ice, and Large Water Regions 2006
Pays/TerritoireSucde
La villeStockholm
période11/09/0613/09/06

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