Position measuring apparatus, position measuring method, navigat

Details Position measuring apparatus, position measuring method, navigat Position measuring apparatus, position measuring method, navigat

1997-07-21

1999-12-07

Hellner, Mark

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

Directive

Including a satellite

342386, 342465, 455456, G01S 502

Patent

active

059991267

ABSTRACT:
A position measuring apparatus includes a first position measuring device for position measuring a first position by receiving a first radio wave, a second position measuring device for position measuring a second position by receiving a second radio wave, an evaluating unit for evaluating uncertainty of data derived from the first position measuring device and/or the second position measuring device, and a selecting element for selecting data from the first position measuring device or the second position measuring device based on an output signal of the evaluating unit.

REFERENCES:
patent: 5510801 (1996-04-01), Engelbrecht et al.
patent: 5604765 (1997-02-01), Bruno et al.
patent: 5724660 (1998-03-01), Kauser et al.
patent: 5760742 (1998-06-01), Branch et al.
patent: 5802473 (1998-09-01), Rutledge et al.

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