Millimeter-continuous-wave radar for creating array imaging system with higher range

Korolyov, S. A.; Shikov, Aleksandr P.; Паршин, В.В.

doi:10.1109/rmc50626.2020.9312250

Cited by 2 publications

(2 citation statements)

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“…The estimations show that the found sensitivity value corresponds to increasing the maximum range of the FPA imaging system by 30 times, if comparing with the direct-detection receivers. In this work, the estimations of [ 34 ] were confirmed experimentally.…”

Section: 1 × 3 Array Imaging Systemsupporting

confidence: 72%

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Millimeter-Wave Imaging System Based on Direct-Conversion Focal-Plane Array Receiver

Korolyov

Goryunov

Illarionov

et al. 2022

Sensors

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A new approach to millimeter-wave imaging was suggested and experimentally studied. This approach can be considered as the evolution of the well-established focal-plane array (FPA) millimeter-wave imaging. The significant difference is the use of a direct-conversion array receiver, instead of the direct-detection array receiver, along with the frequency-modulated continuous-wave (FMCW) radar technique. The sensitivity of the direct-conversion receiver is several orders higher than the sensitivity of the direct-detection one, which allows us to increase the maximum imaging range by more than one order of magnitude. The additional advantage of the direct-conversion technique is the opportunity to obtain information about the range to an object. The realization of the direct-conversion FPA imaging system was made possible due to original sensitive simple-designed receiving elements based on low-barrier Mott diodes. The suggested imaging method’s main characteristics, which include the achievable angular and range resolution and the achievable maximum imaging range, were studied. A maximum range of up to 100 m was experimentally determined. A 94 GHz 8 × 8 imaging system was developed for demonstration purposes and studied in detail. The suggested technique is assumed to be useful for creating a long-range millimeter-wave camera, in particular, for robotic systems that operate in poor environmental conditions.

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Section: 1 × 3 Array Imaging Systemsupporting

confidence: 72%

“…The sensitivity of the developed 3-element array receiver was studied in [ 34 ]. It was found that the noise equivalent power (NEP) of the direct-conversion receiving elements at an accessible LO power of 10 μW per element is about 10 −17 W/Hz.…”

Section: 1 × 3 Array Imaging Systemmentioning

confidence: 99%