Helicopter Near-Field Obstacle Warning System Based on Low-Cost Millimeter-Wave Radar Technology

This paper describes the specific development of a planar and especially low-cost near-field obstacle warning sensor system for helicopters based on an adapted electronically steerable automotive radar. All system components, from the antenna arrays, the RF modules, to the baseband processing, the s...

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Bibliographic Details
Published in:IEEE transactions on microwave theory and techniques 2013-01, Vol.61 (1), p.658-665
Main Authors: Ziegler, V., Schubert, F., Schulte, B., Giere, A., Koerber, R., Waanders, T.
Format: Article
Language:English
Subjects:
Antenna arrays
Antenna measurements
Graphics processing units
Helicopters
Microwave antenna arrays
Radar antennas
Radar imaging
radar imaging sensor system
signal processing
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Summary:This paper describes the specific development of a planar and especially low-cost near-field obstacle warning sensor system for helicopters based on an adapted electronically steerable automotive radar. All system components, from the antenna arrays, the RF modules, to the baseband processing, the signal processing algorithms, and 3-D data visualization were developed and a complete system prototype was built. Ground-based system field trials (static and dynamic sensor tests) were successfully performed during which typical obstacles like overhead power lines, trees, and poles were detected and visualized. In addition, algorithms for geo-referencing of the sensor movements and the detected obstacles were developed and verified.
ISSN:0018-9480
1557-9670
DOI:10.1109/TMTT.2012.2228220