Bio-inspired two target resolution at radio frequencies

Georgiev, Krasin; Balleri, Alessio; Stove, Andy; Holderied, Marc W.

doi:10.1109/radar.2017.7944242

Cited by 1 publication

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References 19 publications

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“…This indicates that the interference pattern of the BSCT is robust to real measurements, especially considering that the two rods are not ideal point targets. This corroborates the results in [27] but for data obtained with a transmitted waveform with the same energy for all geometries.…”

Section: Resultssupporting

confidence: 92%

Bio‐inspired processing of radar target echoes

Georgiev

Balleri

Stove³

et al. 2018

IET Radar, Sonar & Navigation

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Echolocating bats have evolved the ability to detect, resolve and discriminate targets in highly challenging environments using biological sonar. The way bats process signals in the receiving auditory system is not the same as that of radar and sonar and hence investigating differences and similarities might provide useful lessons to improve synthetic sensors. The Spectrogram Correlation And Transformation receiver (SCAT) is an existing model of the bat auditory system that takes into account the physiology and the neural organisation of bats that emit broadband signals. In this paper, we present a baseband receiver equivalent to the SCAT that allows an analysis of target echoes at baseband. The Baseband SCAT (BSCT) is used to investigate the output of the bat-auditory model for two closely spaced scatterers and to carry out an analysis of range resolution performance and a comparison with the conventional matched filter. Results firstly show that the BSCT provides improved resolution performance. It is then demonstrated that the output of the BSCT can be obtained with an equivalent matched-filter based receiver. The results are verified with a set of laboratory experiments at radio frequencies in high Signal to Noise Ratio (SNR).

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Section: Resultssupporting

confidence: 92%