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Technologies for automating rotorcraft nap-of-the-earth flightThis paper discusses the technologies required for automating rotorcraft nap-of-the-earth flight, where the use of natural obstacles for masking from the enemy is intentional and the danger of undesirable obstacles such as enemy traps is real. Specifically, the automatic guidance structure is modeled by three decision-making levels: the far-field mission planning and the mid-field terrain-masking trajectory shaping are both driven by prestored terrain data, whereas the nearfield obstacle detection/avoidance is driven by real-time on-board sensor data. This paper summarizes the far-field and mid-field accomplishments, and reports on the status of the more-recent efforts in obstacle detection and avoidance development. Obstacle detection is based primarily on passive imaging sensors for the desirable properties of covertness and wide field of view, although active sensors are included in the structure to provide the much needed high resolution for thin-wire detection.
Document ID
19930052016
Acquisition Source
Legacy CDMS
Document Type
Conference Paper
Authors
Cheng, Victor H. L.
(NASA Ames Research Center Moffett Field, CA, United States)
Sridhar, Banavar
(NASA Ames Research Center Moffett Field, CA, United States)
Date Acquired
August 16, 2013
Publication Date
January 1, 1992
Publication Information
Publication: In: AHS, Annual Forum, 48th, Washington, June 3-5, 1992, Proceedings. Vol. 2 (A93-35901 14-01)
Publisher: American Helicopter Society
Subject Category
Aircraft Communications And Navigation
Accession Number
93A36013
Distribution Limits
Public
Copyright
Other

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