Title:
DEVICE FOR ASSESSING POSITION
Document Type and Number:
Japanese Patent JP2001116819
Kind Code:
A
Abstract:
To reduce a frequency bias error included in an observed Doppler frequency data and an error included in a speed data of a satellite when a speed of the satellite is measured to enhance precision of a latitude value and a longitude value of a position-assessed transmission source.
Correction processing is conducted to remove the bias error included in the observed Doppler frequency data, processing is carried out to make the error included in the speed data of the satellite very small when the speed of the satellite is measured, and correction processing is conducted to eliminate an input data of inferior precision in position assessment.
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Inventors:
YOKOO AKIFUMI
Application Number:
JP30076299A
Publication Date:
April 27, 2001
Filing Date:
October 22, 1999
Export Citation:
Assignee:
MITSUBISHI ELECTRIC CORP
International Classes:
G01S5/02; (IPC1-7): G01S5/02
Attorney, Agent or Firm:
Kaneo Miyata (2 outside)