A performance evaluation of SAR-GMTI missions for maritime applications
| Autor: | Yu Zhan, Francisco Ceba, Eduardo Makhoul, Josep Ruiz Rodon, Antoni Broquetas |
|---|---|
| Přispěvatelé: | Universitat Politècnica de Catalunya. Departament de Teoria del Senyal i Comunicacions, Universitat Politècnica de Catalunya. RSLAB - Grup de Recerca en Teledetecció |
| Jazyk: | angličtina |
| Rok vydání: | 2015 |
| Předmět: |
Synthetic aperture radar
Interferometria Computer science SAR raw data simulation Constant false alarm rate (CFAR) detector Acceleration Enginyeria de la telecomunicació::Radiocomunicació i exploració electromagnètica::Radar [Àrees temàtiques de la UPC] Extended DPCA (EDPCA) Radar d'obertura sintètica Syntethic aperture radar RADARSAT-2 Moving target indication Along-track interferometry (ATI) symbols.namesake Ground moving target indication (GMTI) Phase center Electrical and Electronic Engineering Monte Carlo (MC) simulations Remote sensing Detector Along-track interferometry Systems Velocity estimation Matched filter bank (MFB) Synthetic aperture radar (SAR) Interferometry Displaced phase center antenna (DPCA) symbols General Earth and Planetary Sciences Clutter Antenna (radio) Doppler effect Multichannel SAR |
| Zdroj: | UPCommons. Portal del coneixement obert de la UPC Universitat Politècnica de Catalunya (UPC) Recercat. Dipósit de la Recerca de Catalunya Universitat Jaume I |
| Popis: | “©2014 IEEE. Personal use of this material is permitted. Permission from IEEE must be obtained for all other uses, in any current or future media, including reprinting/republishing this material for advertising or promotional purposes, creating new collective works, for resale or redistribution to servers or lists, or reuse of any copyrighted component of this work in other works. This paper proposes a new optimized multichannel synthetic aperture radar (SAR) configuration, based on receiving antennas with nonuniformly displaced phase centers, intended for ground moving target indication (GMTI) applications over maritime scenarios. This system is compared with current SAR missions, such as TerraSAR-X (TSX) or TanDEM-X (TDX). The GMTI capabilities of the different configurations are analyzed in a two-level performance approach. First, an intensive numerical simulation evaluation, based on Monte Carlo trials, is carried out in order to characterize the probabilities of detection under different system parameters and scenario conditions. Different GMTI techniques, i.e., displaced phase center antenna, along-track interferometry, and extended displaced phase center antenna, are assessed. In a second step, synthetic simulated SAR data, obtained in a study case scenario, is used to demonstrate the potential improvement of the proposed multichannel configuration compared with current SAR missions, providing subclutter visibility for maritime surveillance of small and slowly moving boats. |
| Databáze: | OpenAIRE |
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