Boots – shoes – and leggings
Patent
1982-12-27
1986-06-10
Krass, Errol A.
Boots, shoes, and leggings
343 9R, G01S 1358
Patent
active
045946760
ABSTRACT:
A system and technique is disclosed which enables the measurement and display of aircraft groundspeed using a modified FMCW radar altimeter. The system is constructed to have a conventional FMCW altimeter transmitter and receiver for transmitting and receiving vertical return signals, and a narrowbeam forward-looking antenna and associated receiver for detecting return signals from the forward angle. The transmitted signal is triangularly modulated to produce returns on both the upsweep and downsweep of the modulation and the difference between the frequencies of those returns, as detected by the forward looking antenna, is proportional to aircraft slant velocity. The system also detects slant range and altitude and combines them with slant velocity to produce an output representing the aircraft groundspeed.
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Breiholz Arlen E.
Pool Robert H.
Sellers Glenn W.
Black Thomas G.
Hamann H. Fredrick
Krass Errol A.
Montanye George A.
Rockwell International Corporation
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