A Block Method Using the Chirp Rate Estimation for NLFM Radar Pulse Reconstruction

This paper presents a novel approach to fast and accurate non-linear pulse signal reconstruction dedicated for electromagnetic sensors and their applications such as ELectronic INTelligence (ELINT), electronic warfare (EW), electronic reconnaissance (ER) systems, as well as for passive bistatic rada...

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Main Authors: Karol Abratkiewicz, Piotr Samczyński
Format: Article
Language:English
Published: MDPI AG 2019-11-01
Series:Sensors
Subjects:
Online Access:https://www.mdpi.com/1424-8220/19/22/5015
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author Karol Abratkiewicz
Piotr Samczyński
author_facet Karol Abratkiewicz
Piotr Samczyński
author_sort Karol Abratkiewicz
collection DOAJ
description This paper presents a novel approach to fast and accurate non-linear pulse signal reconstruction dedicated for electromagnetic sensors and their applications such as ELectronic INTelligence (ELINT), electronic warfare (EW), electronic reconnaissance (ER) systems, as well as for passive bistatic radar purposes in which other pulse radars are used as a source of illumination. The method is based on the instantaneous chirp rate (CR) estimation in the time-frequency (TF) domain providing a calculation of the frequency rate between every two consecutive samples. Such a new method allows for the precise reconstruction of the non-linear frequency modulated (NLFM) signal to be carried out in significantly shorter time in comparison to methods known in the literature. The presented approach was tested and validated using both simulated and real-life radar signals proving the usability of the proposed solution in practical applications. The results were compared with the precise extended generalized chirp transform (EGCT) method as a reference technique, using optimal matched filtration as the main concept.
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spelling doaj.art-40a2cb5fde6145588b8afcd5dc37e6122022-12-22T04:00:47ZengMDPI AGSensors1424-82202019-11-011922501510.3390/s19225015s19225015A Block Method Using the Chirp Rate Estimation for NLFM Radar Pulse ReconstructionKarol Abratkiewicz0Piotr Samczyński1Institute of Electronic Systems, Faculty of Electronics and Information Technology, Warsaw University of Technology, 00-665 Warsaw, PolandInstitute of Electronic Systems, Faculty of Electronics and Information Technology, Warsaw University of Technology, 00-665 Warsaw, PolandThis paper presents a novel approach to fast and accurate non-linear pulse signal reconstruction dedicated for electromagnetic sensors and their applications such as ELectronic INTelligence (ELINT), electronic warfare (EW), electronic reconnaissance (ER) systems, as well as for passive bistatic radar purposes in which other pulse radars are used as a source of illumination. The method is based on the instantaneous chirp rate (CR) estimation in the time-frequency (TF) domain providing a calculation of the frequency rate between every two consecutive samples. Such a new method allows for the precise reconstruction of the non-linear frequency modulated (NLFM) signal to be carried out in significantly shorter time in comparison to methods known in the literature. The presented approach was tested and validated using both simulated and real-life radar signals proving the usability of the proposed solution in practical applications. The results were compared with the precise extended generalized chirp transform (EGCT) method as a reference technique, using optimal matched filtration as the main concept.https://www.mdpi.com/1424-8220/19/22/5015bistatic radarchirp rate estimationpassive radarradar countermeasuresradar measurementselectronic warfareelint systemsradar pulse estimationelectromagnetic spectrum-sensing
spellingShingle Karol Abratkiewicz
Piotr Samczyński
A Block Method Using the Chirp Rate Estimation for NLFM Radar Pulse Reconstruction
Sensors
bistatic radar
chirp rate estimation
passive radar
radar countermeasures
radar measurements
electronic warfare
elint systems
radar pulse estimation
electromagnetic spectrum-sensing
title A Block Method Using the Chirp Rate Estimation for NLFM Radar Pulse Reconstruction
title_full A Block Method Using the Chirp Rate Estimation for NLFM Radar Pulse Reconstruction
title_fullStr A Block Method Using the Chirp Rate Estimation for NLFM Radar Pulse Reconstruction
title_full_unstemmed A Block Method Using the Chirp Rate Estimation for NLFM Radar Pulse Reconstruction
title_short A Block Method Using the Chirp Rate Estimation for NLFM Radar Pulse Reconstruction
title_sort block method using the chirp rate estimation for nlfm radar pulse reconstruction
topic bistatic radar
chirp rate estimation
passive radar
radar countermeasures
radar measurements
electronic warfare
elint systems
radar pulse estimation
electromagnetic spectrum-sensing
url https://www.mdpi.com/1424-8220/19/22/5015
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