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Ambiguity Function Analysis for OFDM-Based LDACS Passive Multistatic Radar

Filip, Alexandra and Shutin, Dmitriy (2018) Ambiguity Function Analysis for OFDM-Based LDACS Passive Multistatic Radar. IEEE Transactions on Aerospace and Electronic Systems, 54 (3), pp. 1323-1340. IEEE - Institute of Electrical and Electronics Engineers. doi: 10.1109/TAES.2017.2780678. ISSN 0018-9251.

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Official URL: https://ieeexplore.ieee.org/stamp/stamp.jsp?tp=&arnumber=8168427

Abstract

The ambiguity function analysis is central to investigating the resolution capabilities of a radar system. It is particularly important for passive radar scenarios, where the signals of opportunity have not been originally designed for radar purposes. This paper focuses on studying the achievable resolution capabilities for a non-coherent OFDM-based passive multistatic radar for LDACS (L-band digital aeronautical communication system) signals. For this purpose, the ambiguity function obtained when employing the OFDM-based LDACS communications signals as signals of opportunity is studied. A generic bistatic link is considered and closed-form expressions for the expectation of the corresponding ambiguity function when accounting for the different signal contributions are derived. The resulting expressions are then used to evaluate and analyze the overall multistatic radar ambiguity function for two sample radar scenarios. The results highlight the impact of the geometry on the shape of the ambiguity function, allowing therefore for a better understanding of the effect that the geometry has on the range and velocity resolution capabilities of the studied system.

Item URL in elib:https://elib.dlr.de/114995/
Document Type:Article
Title:Ambiguity Function Analysis for OFDM-Based LDACS Passive Multistatic Radar
Authors:
AuthorsInstitution or Email of AuthorsAuthor's ORCID iD
Filip, Alexandraalexandra.filip (at) dlr.deUNSPECIFIED
Shutin, Dmitriydmitriy.shuitin (at) dlr.deUNSPECIFIED
Date:June 2018
Journal or Publication Title:IEEE Transactions on Aerospace and Electronic Systems
Refereed publication:Yes
Open Access:No
Gold Open Access:No
In SCOPUS:Yes
In ISI Web of Science:Yes
Volume:54
DOI :10.1109/TAES.2017.2780678
Page Range:pp. 1323-1340
Publisher:IEEE - Institute of Electrical and Electronics Engineers
ISSN:0018-9251
Status:Published
Keywords:Ambiguity function, passive radar, LDACS, OFDM-based signals of opportunity, multistatic radar
HGF - Research field:Aeronautics, Space and Transport
HGF - Program:Aeronautics
HGF - Program Themes:air traffic management and operations
DLR - Research area:Aeronautics
DLR - Program:L AO - Air Traffic Management and Operation
DLR - Research theme (Project):L - Communication, Navigation and Surveillance (old)
Location: Oberpfaffenhofen
Institutes and Institutions:Institute of Communication and Navigation > Communications Systems
Deposited By: Filip-Dhaubhadel, Alexandra
Deposited On:13 Jun 2018 09:53
Last Modified:06 Sep 2019 15:20

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