Continuous-wave ranging system

Details Continuous-wave ranging system Continuous-wave ranging system

1976-04-01

1977-11-08

Hubler, Malcolm F.

Communications: radio wave antennas

Antennas

Balanced doublet - centerfed

G01S 937

Patent

active

040578011

ABSTRACT:
A ranging system utilizing continuous-wave radio frequencies having unique relationships which occur at a predictable rate. A radio transmission system used for transmitting data has a portion of its baseband used to determine range to a target. Three frequencies within the portion of the baseband are so chosen that there is a periodic phase conicidence of the three frequencies which occurs at predetermined intervals. The phase coincidence is detected on transmission to and from a target to provide range information.

REFERENCES:
patent: 2709253 (1955-05-01), Haywood et al.
patent: 3199104 (1965-08-01), Miller
patent: 3307192 (1967-02-01), Attwood
patent: 3618099 (1971-11-01), Johnson
patent: 3939475 (1976-02-01), Lewis
patent: 3968491 (1976-07-01), Silberberg

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