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Patent Searching and Data


Title:
SATELLITE POSITIONING/COMPUTING METHOD AND SATELLITE NAVIGATING/POSITIONING DEVICE USING THE SAME
Document Type and Number:
Japanese Patent JP2003270319
Kind Code:
A
Abstract:

To provide a satellite positioning/calculating method and a satellite navigating/positioning device using the same, having characteristics less affected by a multipath, moreover dispensing with a processor having high processing capacity as a computing portion, having a small-sized signal processing function with less power consumption, and capable of determining an integer bias in real time.

Within the extent of a relational expression obtained at each observation time, a positioning/computing device 104 finds an expression in which variables are eliminated equating to a positioning side position and a phase difference used as reference in carrier phase observation. By applying the found expression to the original relational expression, a conditional expression is found in which variables are eliminated equating to a positioning side position and a phase difference used as reference in carrier phase observation. Each time observation is made, an integer bias is found with respect to the conditional expression in which the variables found about a plurality of times of observation including prior ones are eliminated on condition that the expressions together hold with deviations as small as possible.


Inventors:
TATEDA YOSHIFUMI
Application Number:
JP2002074697A
Publication Date:
September 25, 2003
Filing Date:
March 18, 2002
Export Citation:
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Assignee:
MATSUSHITA ELECTRIC IND CO LTD
International Classes:
G01S19/22; G01S19/34; G01S19/44; (IPC1-7): G01S5/14
Attorney, Agent or Firm:
Role Masaaki (3 others)