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The effect of measurement errors and computational approximations on a perspective ILM radar imageThe effect was examined of aircraft position and attitude, of measurement errors, and of computational approximations on the size, shape, and position of a perspective radar image of an airport runway as might be displayed by an independent landing monitor in transport aircraft. The effect on runway image geometry was examined for different aircraft attitudes and different aircraft positions relative to a standard three degree glide slope. Measurement errors investigated were errors in radar azimuth angle and range, and errors in those aircraft parameters supplied to the radar for use in converting the radar image into a perspective format (namely pitch, roll, and altitude). Also investigated were the effects of using certain mathematical approximations, such as small angle, in the coordinate transformation which converts the image to a perspective format.
Document ID
19750016692
Acquisition Source
Legacy CDMS
Document Type
Technical Memorandum (TM)
Authors
Bundick, W. T. (NASA Langley Research Center Hampton, VA, United States)
Date Acquired
September 3, 2013
Publication Date
January 1, 1975
Subject Category
Research And Support Facilities (Air)
Report/Patent Number
NASA-TM-X-72685
Accession Number
75N24764
Funding Number(s)
PROJECT: RTOP 513-52-01-13
Distribution Limits
Public
Copyright
Work of the US Gov. Public Use Permitted.

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