bladeRAD: Development of an Active and Passive, Multistatic Enabled, Radar System

Beasley, Piers J.; Ritchie, Matthew

doi:10.23919/eurad50154.2022.9784498

Cited by 5 publications

(6 citation statements)

References 12 publications

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“…In order to utilise the GNSSDOs for synchronisation of spatially separated radar nodes the RadSync multistatic radar synchronisation system has been developed at University College London. The RadSync system is used to derive the required synchronisation signals from COTS GNSSDOs, for three radar systems, namely, the bladeRAD hybrid radar system [35, 36], the ARESTOR multi‐role RF system [37, 38] and the NeXtRAD multistatic radar system [39, 40]. The radar synchronisation system provides three main elements of functionality: synchronous clock signal conversion synchronous trigger generation and network control of the spatially separated synchronisation nodes.…”

Section: Radsync Synchronisation Systemmentioning

confidence: 99%

Global Navigation Satellite Systems disciplined oscillator synchronisation of multistatic radar

Beasley,

Peters,

Horne

et al. 2023

IET Radar Sonar & Navi

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A fundamental challenge in the practical implementation of multistatic radar systems (MSRS) is the requirement for precise time and frequency synchronisation between the spatially separated radar nodes. The authors evaluate the performance of different classes of commercially available Global Navigation Satellite Systems (GNSS) timing receivers, Local Oscillators (LO) and GNSS Disciplined Oscillators (GNSSDOs) to determine the limitations of using one‐way GNSS Time and Frequency Transfer (TFT) in this application. From evaluating the performance of three pairs of GNSSDOs, it is concluded that one‐way GNSS TFT will likely be suitable only for the synchronisation of fully spatially coherent MSRS with carrier frequencies up to 100 MHz and waveform bandwidths up to 20 MHz. Whereas, in the case of short‐term spatially coherent MSRS, synchronisation of systems with carrier frequencies up to a few GHz and waveform bandwidths of over 100 MHz will likely be possible. The performance of the different classes of GNSSDOs during GNSS denial (holdover) are evaluated, where it is concluded that frequency offsets between LOs at the point of GNSS denial will often significantly contribute, or even dominate, the holdover performance. Analysis of two practical multistatic radar measurements verifies the function of using the GNSSDOs for wireless synchronisation of the ARESTOR MSRS.

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Section: Radsync Synchronisation Systemmentioning

confidence: 99%

Global Navigation Satellite Systems disciplined oscillator synchronisation of multistatic radar

Beasley,

Peters,

Horne

et al. 2023

IET Radar Sonar & Navi

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“…During the trial, the bladeRAD multi-functional radar system was used to simultaneously collect active and PBR data. The bladeRAD system is a low-cost experimental hybrid radar system, developed from a combination of Nuand bladeRF micro 2.0 SDRs [9]. bladeRAD is a staring radar, thus currently does not provide target elevation or azimuth estimations.…”

Section: A Bladerad Hybrid Radar Systemmentioning

confidence: 99%

“…In previous works by Ritchie et al, a high performance multi-role RF sensor based on a Xilinx Radio Frequency System on a Chip (RFSoC) is shown to work in a hybrid radar mode, sensing a human target at two different frequency bands [8]. Additionally, in previous works by this author, the development of a hybrid experimental radar system is presented, where multiple low-cost bladeRF SDRs are utilised for sensing a human and micro-drone target using active radar and Wi-Fi PBR [9].…”

Section: Introductionmentioning

confidence: 99%

Multi-Band Hybrid Active-Passive Radar Sensor Fusion

Beasley

Ritchie

2023

2023 IEEE Radar Conference (RadarConf23)

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In this paper the topic of joint active and passive (hybrid) radar detection is introduced and the theoretical benefits are outlined. An experimental hybrid radar setup is presented where a low-cost Software Defined Radio (SDR) based radar system is used for hybrid sensing of targets using active and Passive Bistatic Radar (PBR). Experimental results are presented for simultaneously sensing using an active 2.4 GHz radar and 690 MHz Digital Video Broadcasting -Terrestrial (DVB-T) based PBR mode. The detection performance of each sensor and a joint sensor performance are evaluated, where the joint detection performance is found to exceed that of the individual sensors alone. The ability to reduce active radar transmissions, but still retain a reasonable detection performance, is investigated using experimental data and the case is made for adaptive behaviour in order to exploit the benefits available to hybrid radars.

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“…A radar synchronisation system has been developed to clock and trigger three radar systems, namely, the bladeRAD hybrid radar system [15], the ARESTOR multi-role RF system [16], and the NeXtRAD radar system [4]. The GPSDOs alone, described in the previous section, cannot be used to clock and trigger the radars; instead, a system is needed to derive a common trigger signal, provide network control of GPSDOs, and translate the GPSDO frequency reference to meet the input requirements of each radar system.…”

Section: System Architecturementioning

confidence: 99%

Multistatic radar synchronisation using COTS GPS disciplined oscillators

Beasley¹,

Ritchie²

2022

International Conference on Radar Systems (RADAR 2022)

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The benefits of multistatic radar have been well understood for decades, though the challenges of implementing such systems have limited their development and subsequent operational use. Multistatic radar's performance enhancements, over standard monostatic radar, result from the cooperation and data-fusion between spatially separated radar nodes, however, to enable cooperation and data-fusion, some degree of node-to-node time and frequency synchronisation is critical. In this work, the use of commercial off-the-shelf (COTS) GPS Disciplined Oscillators (GPSDO) as a source of indirect radar synchronisation is evaluated and the development, and subsequent testing, of a GPSDO based radar synchronisation system is presented.

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bladeRAD: Development of an Active and Passive, Multistatic Enabled, Radar System

Cited by 5 publications

References 12 publications

Global Navigation Satellite Systems disciplined oscillator synchronisation of multistatic radar

Global Navigation Satellite Systems disciplined oscillator synchronisation of multistatic radar

Multi-Band Hybrid Active-Passive Radar Sensor Fusion

Multistatic radar synchronisation using COTS GPS disciplined oscillators

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