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Cooperative Fusion Based Passive Multistatic Radar Detection
Passive multistatic radars have gained a lot of interest in recent years as they offer many benefits contrary to conventional radars. Here in this research, our aim is detection of target in a passive multistatic radar system. The system contains a single transmitter and multiple spatially distribut...
Autores principales: | , |
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Formato: | Online Artículo Texto |
Lenguaje: | English |
Publicado: |
MDPI
2021
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Materias: | |
Acceso en línea: | https://www.ncbi.nlm.nih.gov/pmc/articles/PMC8125025/ https://www.ncbi.nlm.nih.gov/pubmed/34063129 http://dx.doi.org/10.3390/s21093209 |
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author | Asif, Asma Kandeepan, Sithamparanathan |
author_facet | Asif, Asma Kandeepan, Sithamparanathan |
author_sort | Asif, Asma |
collection | PubMed |
description | Passive multistatic radars have gained a lot of interest in recent years as they offer many benefits contrary to conventional radars. Here in this research, our aim is detection of target in a passive multistatic radar system. The system contains a single transmitter and multiple spatially distributed receivers comprised of both the surveillance and reference antennas. The system consists of two main parts: 1. Local receiver, and 2. Fusion center. Each local receiver detects the signal, processes it, and passes the information to the fusion center for final detection. To take the advantage of spatial diversity, we apply major fusion techniques consisting of hard fusion and soft fusion for the case of multistatic passive radars. Hard fusion techniques are analyzed for the case of different local radar detectors. In terms of soft fusion, a blind technique called equal gain soft fusion technique with random matrix theory-based local detector is analytically and theoretically analyzed under null hypothesis along with the calculation of detection threshold. Furthermore, six novel random matrix theory-based soft fusion techniques are proposed. All the techniques are blind in nature and hence do not require any knowledge of transmitted signal or channel information. Simulation results illustrate that proposed fusion techniques increase detection performance to a reasonable extent compared to other blind fusion techniques. |
format | Online Article Text |
id | pubmed-8125025 |
institution | National Center for Biotechnology Information |
language | English |
publishDate | 2021 |
publisher | MDPI |
record_format | MEDLINE/PubMed |
spelling | pubmed-81250252021-05-17 Cooperative Fusion Based Passive Multistatic Radar Detection Asif, Asma Kandeepan, Sithamparanathan Sensors (Basel) Article Passive multistatic radars have gained a lot of interest in recent years as they offer many benefits contrary to conventional radars. Here in this research, our aim is detection of target in a passive multistatic radar system. The system contains a single transmitter and multiple spatially distributed receivers comprised of both the surveillance and reference antennas. The system consists of two main parts: 1. Local receiver, and 2. Fusion center. Each local receiver detects the signal, processes it, and passes the information to the fusion center for final detection. To take the advantage of spatial diversity, we apply major fusion techniques consisting of hard fusion and soft fusion for the case of multistatic passive radars. Hard fusion techniques are analyzed for the case of different local radar detectors. In terms of soft fusion, a blind technique called equal gain soft fusion technique with random matrix theory-based local detector is analytically and theoretically analyzed under null hypothesis along with the calculation of detection threshold. Furthermore, six novel random matrix theory-based soft fusion techniques are proposed. All the techniques are blind in nature and hence do not require any knowledge of transmitted signal or channel information. Simulation results illustrate that proposed fusion techniques increase detection performance to a reasonable extent compared to other blind fusion techniques. MDPI 2021-05-05 /pmc/articles/PMC8125025/ /pubmed/34063129 http://dx.doi.org/10.3390/s21093209 Text en © 2021 by the authors. https://creativecommons.org/licenses/by/4.0/Licensee MDPI, Basel, Switzerland. This article is an open access article distributed under the terms and conditions of the Creative Commons Attribution (CC BY) license (https://creativecommons.org/licenses/by/4.0/). |
spellingShingle | Article Asif, Asma Kandeepan, Sithamparanathan Cooperative Fusion Based Passive Multistatic Radar Detection |
title | Cooperative Fusion Based Passive Multistatic Radar Detection |
title_full | Cooperative Fusion Based Passive Multistatic Radar Detection |
title_fullStr | Cooperative Fusion Based Passive Multistatic Radar Detection |
title_full_unstemmed | Cooperative Fusion Based Passive Multistatic Radar Detection |
title_short | Cooperative Fusion Based Passive Multistatic Radar Detection |
title_sort | cooperative fusion based passive multistatic radar detection |
topic | Article |
url | https://www.ncbi.nlm.nih.gov/pmc/articles/PMC8125025/ https://www.ncbi.nlm.nih.gov/pubmed/34063129 http://dx.doi.org/10.3390/s21093209 |
work_keys_str_mv | AT asifasma cooperativefusionbasedpassivemultistaticradardetection AT kandeepansithamparanathan cooperativefusionbasedpassivemultistaticradardetection |