Combined Radar/Barometric Altimeter.
DEPARTMENT OF THE AIR FORCE WASHINGTON DC
Pagination or Media Count:
An altitude sensing arrangement which combines the advantages of a barometric altimeter with a radar altimeter. The apparatus monitors the radar altimeters associated radar validity signal and selects the radar altimeters reading when the validity signal indicates a valid condition. Alternately, when the validity signal does not indicate a valid condition, the invention computes the difference in barometric altitude since the last valid radar altimeter reading and sums this difference with the last valid reading from the radar altimeter to produce a combined altitude reading.
- Infrared Detection and Detectors
- Air Navigation and Guidance