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A low-cost mechanically-steered weather radar concept

: Turso, S.; Bertuch, T.; Jäger, M.; Stanko, S.; Knott, P.; Trömel, S.; Simmer, C.


Institute of Electrical and Electronics Engineers -IEEE-:
IEEE Radar Conference 2018, RadarConf 2018 : 23-27 April 2018, Oklahoma City, USA
Piscataway, NJ: IEEE, 2018
ISBN: 978-1-5386-4168-2 (print)
ISBN: 978-1-5386-4167-5 (electronic)
ISBN: 978-1-5386-4165-1 (CD-ROM)
ISBN: 978-1-5386-4166-8 (USB)
Radar Conference (RadarConf) <2018, Oklahoma City/Okla.>
Fraunhofer FHR ()

Due to the Earth curvature, current operational networks of long-range weather radars are inherently unable to cover about 70% of the lower troposphere. Dense networks of inexpensive short-range units could notably improve the awareness and timely reaction to important weather events. A concept for a weather network node featuring mechanical rotation in azimuth and frequency steering in elevation is proposed, merging traditional approaches and technology advancements to fulfill present-day requirements within low-cost constraints. Achieving optimal cross-polarization drives the choice of a mechanically steered aperture. Integrated front-end chipsets support distributed power generation as close as possible to the antenna. Receiver over-elevation removes the need for a rotary joint, if sufficient processing power is available on-board.