Position surveillance using one active ranging satellite and tim

Details Position surveillance using one active ranging satellite and tim Position surveillance using one active ranging satellite and tim

1977-10-17

1979-07-17

Wilbur, Maynard R.

Communications: radio wave antennas

Antennas

Balanced doublet - centerfed

343103, 343112R, G01S 120

Patent

active

041617347

ABSTRACT:
The position of a ship or other object being located is determined at an earth station using an active ranging satellite and a satellite which transmits time signals. One line of position is determined by two-way active ranging through the first satellite. The other line of position is determined by one-way ranging from the second satellite. The time interval between the time of arrival of the timing signal at the ship and reception of the active ranging signal at the ship is measured and sent back to the earth station with the ship's active ranging response. The position fix is then computed at the earth station.

REFERENCES:
patent: 3384891 (1968-05-01), Anderson
patent: 3544995 (1970-12-01), Bottenberg et al.
patent: 3611379 (1971-10-01), Deckett

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