Opportunities and current drivers for passive radar research

Palmer, J.; Cristallini, Diego; Kuschel, Heiner

doi:10.1109/radarconf.2015.7411870

Cited by 27 publications

(8 citation statements)

References 57 publications

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“…Recent advances in passive radar research have opened interesting new perspectives and application areas [ 1 , 2 , 3 ]. Among them, in the last few years, the potentialities of passive radar mounted onboard moving platforms have been investigated, aiming towards synthetic aperture radar (SAR) imaging [ 4 , 5 , 6 , 7 ] and ground moving target indication (GMTI) [ 8 , 9 , 10 , 11 , 12 , 13 , 14 , 15 , 16 , 17 , 18 ] applications.…”

Section: Introductionmentioning

confidence: 99%

Dual Cancelled Channel STAP for Target Detection and DOA Estimation in Passive Radar

Blasone

Colone

Lombardo

et al. 2021

Sensors

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This paper deals with the problem of detection and direction of arrival (DOA) estimation of slowly moving targets against clutter in multichannel mobile passive radar. A dual cancelled channel space-time adaptive processing (STAP) scheme is proposed, aiming at reducing the system computational complexity, as well as the amount of required training data, compared to a conventional full array solution. The proposed scheme is shown to yield comparable target detection capability and DOA estimation accuracy with respect to the corresponding full array solution, despite the lower computational cost required. Moreover, it offers increased robustness against adaptivity losses, operating effectively even in the presence of a limited set of training data, as often available in the highly non-homogeneous clutter scenarios experienced in bistatic passive radar. The effectiveness of the proposed scheme and its suitability for passive GMTI are demonstrated against both simulated and experimental data collected by a DVB-T-based multichannel mobile passive radar.

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Section: Introductionmentioning

confidence: 99%

Dual Cancelled Channel STAP for Target Detection and DOA Estimation in Passive Radar

Blasone

Colone

Lombardo

et al. 2021

Sensors

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“…The concept of Passive Coherent Location (PCL) or passive radar has gained renewed research interest in recent years [ 1 , 2 , 3 ], due to the advantages that PCL offers. As a passive radar system does not emit any electromagnetic signal, neither a dedicated Transmitter (TX) for target illumination needs to be maintained nor an approval for spectrum allocation is necessary.…”

Section: Introductionmentioning

confidence: 99%

A Three-Stage Inter-Channel Calibration Approach for Passive Radar on Moving Platforms Exploiting the Minimum Variance Power Spectrum

Wojaczek

Cristallini

O’Hagan

et al. 2020

Sensors

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Research in passive radar has moved its focus towards passive radar on moving platforms in recent years with the purpose of moving target indication and ground imaging via synthetic aperture radar. This is also fostered by the progress in hardware miniaturization, which alleviates the installation of the required hardware on moving platforms. Terrestrial transmitters, commonly known as illuminators of opportunity in the passive radar community, usually emit the signals in the Very High Frequency (VHF) or Ultra High Frequency (UHF) band. Due to the long wavelengths of the VHF/UHF band, there are constraints on the size of the used antenna elements, and therefore, the number of antenna elements to be employed is limited, especially as the platform carrying the passive radar system is intended to be small, potentially even an unmanned aerial vehicle. In order to detect moving targets hidden by Doppler shifted clutter returns, one common approach is to suppress the clutter returns by applying clutter suppression techniques that rely on spatial and temporal degrees of freedom, such as Displaced Phase Center Antenna (DPCA) or Space-Time Adaptive Processing. It has been shown that the DPCA approach is a meaningful technique to suppress the clutter if two antenna elements are employed. However, if the employed receiving channels are not carefully calibrated, the clutter suppression is shown to be not effective. Here, we suggest a three-stage calibration technique in order to perform the calibration of two receiving channels, which involves the exploitation of the direct signal, a data-adaptive amplitude calibration, and finally, a data-adaptive calibration of phase mismatches between both receiving channels by the estimation of the Minimum Variance Power Spectrum of the clutter. The validity of the proposed approach is shown with simulated data and demonstrated on real data from a fast ground moving platform, showing improved clutter cancellation capabilities.

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“…In recent years, passive bistatic radar (PBR) systems have attracted growing interest in radar community due to their lower cost and power consumption over conventional radars. PBRs exploit non‐cooperative illuminators as their source of radiofrequency transmission [1–4]. Among all the available illuminators, the commercial broadcast transmitters are widely utilised, such as analogue signals like frequency modulated (FM) radio [5–7] and digital signals like digital radio (e.g.…”

Section: Introductionmentioning

confidence: 99%

Parallel processing algorithm for multipath clutter cancellation in passive radar

Wan

Zhang

et al. 2018

IET Radar, Sonar & Navigation

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Opportunities and current drivers for passive radar research

Cited by 27 publications

References 57 publications

Dual Cancelled Channel STAP for Target Detection and DOA Estimation in Passive Radar

Dual Cancelled Channel STAP for Target Detection and DOA Estimation in Passive Radar

A Three-Stage Inter-Channel Calibration Approach for Passive Radar on Moving Platforms Exploiting the Minimum Variance Power Spectrum

Parallel processing algorithm for multipath clutter cancellation in passive radar

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