Multiple target tracking using retrodirective antenna arrays

Karode, S.L.

doi:10.1049/cp:19990045

Cited by 21 publications

(12 citation statements)

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“…In some cases, it could be desirable to have the retrodirective antenna tracking several pilot signals simultaneously [47]. In [48] it was shown that a frequency offset Van Atta array is capable of splitting the retransmitted signal into multiple beams, if more than one signal at the same frequency is present, each coming from different directions. It is also possible to selectively cancel signals from certain directions, that is, to endow the retrodirective array with some degree of resilience to jamming.…”

Section: Effects Of Multiple Pilot Signals and Multipathmentioning

confidence: 99%

Developments in retrodirective array technology

Fusco¹,

Buchanan²

2013

IET Microwaves, Antennas & Propagation

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There has been significant interest in retrodirective antennas, especially considering the wealth of applications that could be significantly enhanced, or created, by the use of such technology. There is enormous potential for retrodirective antennas where complicated automatic tracking systems would benefit from being replaced by much simpler systems. Retrodirective array technology offers one solution pathway since it can offer extremely fast tracking with relatively simple circuitry. Retrodirective or self‐steering arrays are suited for low radio frequency (RF) power mobile terminal use particularly on or between un‐stabilised vehicles. In this type of operational scenario, high degrees of relative movement are expected, and power consumption and weight of the antenna must be kept to a minimum. In this study, the authors give a brief historical review of basic retrodirective technology and elaborate on some recent developments at Queens University of Belfast associated with retrodirective antenna technology in relation to, two‐way communications, ultrafast RADAR, microwave imaging, spatial power transmission, mitigation of multipath effects and spatial encryption.

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Section: Effects Of Multiple Pilot Signals and Multipathmentioning

confidence: 99%

Developments in retrodirective array technology

Fusco¹,

Buchanan²

2013

IET Microwaves, Antennas & Propagation

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“…The retrodirective array has the ability of tracking each individual source simultaneously when multitargets exist [25]. This introduces a disadvantage to the system that a signal with vital information could be retransmitted to the interfere source.…”

Section: Interference Suppressionmentioning

confidence: 99%

Overview on the Phase Conjugation Techniques of the Retrodirective Array

Chen

Guo²,

Shi

et al. 2010

International Journal of Antennas and Propagation

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“…RDAs suffer from the inability to distinguish the pilot-tone signal, originated from a desired direction, from an identical frequency signal, which may be radiated unintentionally or intentionally from different directions. The consequence of this is that the RDA's re-transmission pattern would form multiple main beams whose magnitudes are proportionate to the strengths of the corresponding interrogating signals (pilot tones) incident upon it [9][10][11]. This leads to reduced gain of the wanted transmission link, and, information leakage into unwanted spatial directions.…”

Section: Introductionmentioning

confidence: 99%

Spectral signature secured retrodirective array

Fusco

Ding

Buchanan

2016

IET Microwaves, Antennas & Propagation

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A novel retrodirective array (RDA) architecture is proposed which utilises a special case spectral signature embedded within the data payload as pilot signals. With the help of a pair of phase-locked-loop (PLL) based phase conjugators (PCs) the RDA's response to other unwanted and/or unfriendly interrogating signals can be disabled, leading to enhanced secrecy performance directly in the wireless physical layer. The effectiveness of the proposed RDA system is experimentally demonstrated.

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Multiple target tracking using retrodirective antenna arrays

Cited by 21 publications

References 0 publications

Developments in retrodirective array technology

Developments in retrodirective array technology

Overview on the Phase Conjugation Techniques of the Retrodirective Array

Spectral signature secured retrodirective array

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