Next Article in Journal
EFPC: An Environmentally Friendly Power Control Scheme for Underwater Sensor Networks
Previous Article in Journal
Self-Learning Embedded System for Object Identification in Intelligent Infrastructure Sensors
Article Menu

Export Article

Open AccessArticle
Sensors 2015, 15(11), 29079-29106; doi:10.3390/s151129079

Feasibility Study of EO SARs as Opportunity Illuminators in Passive Radars: PAZ-Based Case Study

Signal Theory and Communications Department, Higher Polytechnic School, University of Alcalá, Alcalá de Henares, Madrid 28805, Spain
*
Author to whom correspondence should be addressed.
Academic Editor: Vittorio M. N. Passaro
Received: 18 September 2015 / Revised: 2 November 2015 / Accepted: 10 November 2015 / Published: 17 November 2015
(This article belongs to the Section Physical Sensors)

Abstract

Passive radars exploit the signal transmitted by other systems, known as opportunity illuminators (OIs), instead of using their own transmitter. Due to its almost total invulnerability to natural disasters or physical attacks, satellite OIs are of special interest. In this line, a feasibility study of Earth Observation Synthetic Aperture Radar (EO SAR) systems as OIs is carried out taking into consideration signal waveform, availability, bistatic geometry, instrumented coverage area and incident power density. A case study based on the use of PAZ, the first Spanish EO SAR, is presented. PAZ transmitted waveform, operation modes, orbit characteristics and antenna and transmitter parameters are analyzed to estimate potential coverages and resolutions. The study concludes that, due to its working in on-demand operating mode, passive radars based on PAZ-type illuminators can be proposed as complementing tools during the sensor commissioning phase, for system maintenance and for improving its performance by providing additional information about the area of interest and/or increasing the data updating speed, exploiting other sensors during the time PAZ is not available. View Full-Text
Keywords: passive radar; bistatic geometry; resolution; opportunity illuminator; synthetic aperture radar; PAZ passive radar; bistatic geometry; resolution; opportunity illuminator; synthetic aperture radar; PAZ
This is an open access article distributed under the Creative Commons Attribution License which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited. (CC BY 4.0).

Scifeed alert for new publications

Never miss any articles matching your research from any publisher
  • Get alerts for new papers matching your research
  • Find out the new papers from selected authors
  • Updated daily for 49'000+ journals and 6000+ publishers
  • Define your Scifeed now

SciFeed Share & Cite This Article

MDPI and ACS Style

Bárcena-Humanes, J.-L.; Gómez-Hoyo, P.-J.; Jarabo-Amores, M.-P.; Mata-Moya, D.; Del-Rey-Maestre, N. Feasibility Study of EO SARs as Opportunity Illuminators in Passive Radars: PAZ-Based Case Study. Sensors 2015, 15, 29079-29106.

Show more citation formats Show less citations formats

Related Articles

Article Metrics

Article Access Statistics

1

Comments

[Return to top]
Sensors EISSN 1424-8220 Published by MDPI AG, Basel, Switzerland RSS E-Mail Table of Contents Alert
Back to Top