Position measuring system and method therefor

Details Position measuring system and method therefor Position measuring system and method therefor

1994-07-27

1996-10-08

Blum, Theodore M.

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

Directive

Including a satellite

364449, H04B 7185, G01S 502

Patent

active

055636080

ABSTRACT:
In a position measuring system, a position of a moving body is derived when data is sufficient for such derivation. On the other hand, when data is insufficient for such derivation, an area which may include the position of the moving body is derived. Accordingly, a user correctly evaluates reliability of information which is displayed. In a position measuring method, a measurement error of the derived position is evaluated. Further, a moving error evaluation is performed to evaluate an increase of the error. By changing the measurement error of the derived position, the area which includes the position of the moving body with high reliability can be displayed to the user.

REFERENCES:
patent: 5311195 (1994-05-01), Mathis et al.

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