TW201144851A - GNSS signal retrieving method using fuzzy calculations - Google Patents
GNSS signal retrieving method using fuzzy calculationsInfo
- 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
Links
- 238000000034 method Methods 0.000 title abstract 3
Landscapes
- 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.
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)
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)
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 |
-
2010
- 2010-06-14 TW TW99119348A patent/TWI397713B/en active
Cited By (1)
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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