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TW201144851A - GNSS signal retrieving method using fuzzy calculations - Google Patents

GNSS signal retrieving method using fuzzy calculations

Info

Publication number
TW201144851A
TW201144851A TW099119348A TW99119348A TW201144851A TW 201144851 A TW201144851 A TW 201144851A TW 099119348 A TW099119348 A TW 099119348A TW 99119348 A TW99119348 A TW 99119348A TW 201144851 A TW201144851 A TW 201144851A
Authority
TW
Taiwan
Prior art keywords
fuzzy
retrieving method
calculations
signal retrieving
frequency searching
Prior art date
Application number
TW099119348A
Other languages
Chinese (zh)
Other versions
TWI397713B (en
Inventor
Chung-Liang Chang
Original Assignee
Univ Nat Pingtung Sci & Tech
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Univ Nat Pingtung Sci & Tech filed Critical Univ Nat Pingtung Sci & Tech
Priority to TW99119348A priority Critical patent/TWI397713B/en
Publication of TW201144851A publication Critical patent/TW201144851A/en
Application granted granted Critical
Publication of TWI397713B publication Critical patent/TWI397713B/en

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  • Position Fixing By Use Of Radio Waves (AREA)

Abstract

A GPS signal retrieving method using fuzzy calculations is disclosed. The fuzzy calculations use a fuzzy controller to search the step values during frequency searching. The time period required for the frequency searching may be shortened by adjusting the step values. The GPS signal retrieving method comprises a satellite setting step, a frequency searching step, a pseudo random code calculation step, a telegraph code calculation step, a data comparing step and a fuzzy calculation step. Best values for the frequency searching may be obtained via the fuzzy calculations to shorten the time period required for searching a satellite.
TW99119348A 2010-06-14 2010-06-14 Gnss signal retrieving method using fuzzy calculations TWI397713B (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
TW99119348A TWI397713B (en) 2010-06-14 2010-06-14 Gnss signal retrieving method using fuzzy calculations

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
TW99119348A TWI397713B (en) 2010-06-14 2010-06-14 Gnss signal retrieving method using fuzzy calculations

Publications (2)

Publication Number Publication Date
TW201144851A true TW201144851A (en) 2011-12-16
TWI397713B TWI397713B (en) 2013-06-01

Family

ID=46765739

Family Applications (1)

Application Number Title Priority Date Filing Date
TW99119348A TWI397713B (en) 2010-06-14 2010-06-14 Gnss signal retrieving method using fuzzy calculations

Country Status (1)

Country Link
TW (1) TWI397713B (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
TWI566098B (en) * 2012-02-22 2017-01-11 北歐半導體公司 Interface controller and method of operating a device including the same

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US7432853B2 (en) * 2003-10-28 2008-10-07 Trimble Navigation Limited Ambiguity estimation of GNSS signals for three or more carriers
TWI345069B (en) * 2006-08-23 2011-07-11 Qualcomm Inc System and/or method for reducing ambiguities in received sps signals
US8331422B2 (en) * 2008-02-28 2012-12-11 Magellan Systems Japan, Inc. Method and apparatus for acquisition, tracking, and transfer using sub-microsecond time transfer using weak GPS/GNSS signals
US8081922B2 (en) * 2008-05-30 2011-12-20 Qualcomm Incorporated Methods and apparatuses for processing satellite positioning system signals

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
TWI566098B (en) * 2012-02-22 2017-01-11 北歐半導體公司 Interface controller and method of operating a device including the same

Also Published As

Publication number Publication date
TWI397713B (en) 2013-06-01

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