Pulse radar altimeters

Details Pulse radar altimeters Pulse radar altimeters

1979-07-11

1980-12-23

Hubler, Malcolm F.

Communications: radio wave antennas

Antennas

Balanced doublet - centerfed

343 5SW, 343 75, G01S 1312

Patent

active

042413460

ABSTRACT:
The invention relates to pulse radar altimeters for aircraft wherein the altimeter includes a variable beam width receiver antenna for receiving radar ground echoes, a timer for measuring time intervals between transmitted pulses and received ground echoes thereof, and control means responsive to the output of the timer and arranged to vary the beam width of the antenna in accordance with the values of the measured time intervals.

REFERENCES:
patent: 2959376 (1960-11-01), Saurma
patent: 3472471 (1969-10-01), Badewitz
patent: 3540045 (1970-11-01), Taylor
patent: 3906495 (1975-09-01), Roger

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