Waveform design for Commensal Radar

Griffiths, Hugh; Darwazeh, Izzat; Inggs, Michael

doi:10.1109/radar.2015.7131224

Cited by 9 publications

(1 citation statement)

References 21 publications

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“…It is worth noting that passive radar operation is generally inferior to active radar operation due to non-optimal waveforms, spatial beampatterns, and transmit power [2]. Some recent works proposed "commensal radar" [64], [65], in which the communication signal is designed with the double purpose of transferring information and improving target localization (through a careful autocorrelation function shaping) for a coexisting passive sensing system.…”

Section: B Radar Employing Communication Waveformsmentioning

confidence: 99%

Radar and Communication Co-existence: an Overview

Zheng,

Lops,

Eldar

et al. 2019

Preprint

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Increased amounts of bandwidth are required to guarantee both high-quality/high-rate wireless services (4G and 5G) and reliable sensing capabilities such as automotive radar, air traffic control, earth geophysical monitoring and security applications. Therefore, co-existence between radar and communication systems using overlapping bandwidths has been a primary investigation field in recent years. Various signal processing techniques such as interference mitigation, pre-coding or spatial separation, and waveform design allow both radar and communications to share the spectrum. This article reviews recent work on co-existence between radar and communication systems, including signal models, waveform design and signal processing techniques. Our goal is to survey contributions in this area in order to provide a primary starting point for new researchers interested in these problems.

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Section: B Radar Employing Communication Waveformsmentioning

confidence: 99%

Radar and Communication Co-existence: an Overview

Zheng,

Lops,

Eldar

et al. 2019

Preprint

View full text Add to dashboard Cite

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Passive Radar

Griffiths¹

2019

Wiley Encyclopedia of Electrical and Electronics Engineering

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Passive radar may be defined as a set of techniques that exploit existing transmissions as radar illuminators, such as broadcast, communications, or radionavigation signals, rather than requiring a dedicated radar transmitter. Passive radar has a number of advantages, including the fact that it requires no additional spectrum and that the passive nature of the receiver makes it potentially covert. It may also offer advantages in detecting and tracking stealthy targets. There are also some disadvantages, notably that the signals are usually not optimum for radar purposes, so care has to be taken to choose the right signals and to process them in the right way. Also, the continuous nature of many such transmissions means that it is necessary to suppress the direct transmitted signal at the receiver, which may be difficult. In the past decade there has been a significant change in the level of maturity of the subject, and passive radar is now seriously considered for a number of applications. The article describes the properties of bistatic radar, the nature of a range of different signals that may be used as the basis of passive radar, some signal processing techniques that are particular to passive radar, some examples of systems and results, and finally some comments of future prospects.

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