W-band real-time passive millimeter-wave imager for helicopter collision avoidance

Neil Anthony Salmon

doi:10.1117/12.353007

14 July 1999 W-band real-time passive millimeter-wave imager for helicopter collision avoidance

Neil Anthony Salmon

Proceedings Volume 3703, Passive Millimeter-Wave Imaging Technology III; (1999) https://doi.org/10.1117/12.353007
Event: AeroSense '99, 1999, Orlando, FL, United States

Abstract

A w-band passive millimeter imager is proposed for use on a helicopter platform. The atmospheric transmission through fog and rain is much higher in the millimeter wave band than it is in the visible or infrared regions of the spectrum. This property enables passive millimeter wave imaging systems to offer recognizable imagery in adverse weather conditions. Furthermore, as the technique is based on incoherent imaging, it can be used in environments where it may be difficult for radar to process data into recognizable imagery. The 30 cm diameter real-time passive millimeter wave imager described here will have a radiometric sensitivity of around 1 degree(s)C and a radiation bandwidth of 80 GHz to 105 GHz. The system is based on the DERA mechanical scanning passive millimeter wave imager architecture.

Citation Download Citation

Neil Anthony Salmon "W-band real-time passive millimeter-wave imager for helicopter collision avoidance", Proc. SPIE 3703, Passive Millimeter-Wave Imaging Technology III, (14 July 1999); https://doi.org/10.1117/12.353007

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