Stem orientation measurement apparatus

Details Stem orientation measurement apparatus Stem orientation measurement apparatus

1983-06-23

1987-02-17

Blum, Theodore M.

Communications: directive radio wave systems and devices (e.g.,

Directive

Including a satellite

342357, 342405, 342434, H04B 719, G01S 130, G01S 504

Patent

active

046443584

ABSTRACT:
An apparatus to confirm an orientation of the stem of ship by making use of a satellite included in the Global Positioning System. Radio wave signals from the satellite are received by a directional or omnidirectional antenna and the phase difference between a rotating period of said antenna and either the period of distance fluctuation, Doppler fluctuation, phase fluctuation or amplitude fluctuation is detected to obtain an orientation of the satellite which is used to obtain an accurate orientation of the stem relative to a reference direction such as due North.

REFERENCES:
patent: 3144646 (1964-08-01), Breithaupt
patent: 3149334 (1964-09-01), Cleaver et al.
patent: 3916410 (1975-10-01), Elwood
patent: 4257047 (1981-03-01), Lipsky
patent: 4384293 (1983-05-01), Deem et al.
patent: 4445118 (1984-04-01), Taylor et al.

Affiliated with

Also associated with

Rating

Stem orientation measurement apparatus does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Stem orientation measurement apparatus, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Stem orientation measurement apparatus will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-1939778