Source: https://patents.google.com/patent/JPH0470584A/en
Timestamp: 2020-01-26 23:19:26
Document Index: 349806807

Matched Legal Cases: ['art 2', 'art 3', 'art 8', 'art 8', 'art 8', 'art 7', 'art 6', 'art 7']

JPH0470584A - Satellite navigation system - Google Patents
JPH0470584A
JPH0470584A JP18631990A JP18631990A JPH0470584A JP H0470584 A JPH0470584 A JP H0470584A JP 18631990 A JP18631990 A JP 18631990A JP 18631990 A JP18631990 A JP 18631990A JP H0470584 A JPH0470584 A JP H0470584A
JP18631990A
1990-07-11 Application filed by Mitsubishi Electric Corp filed Critical Mitsubishi Electric Corp
1990-07-11 Priority to JP18631990A priority Critical patent/JPH0470584A/en
1992-03-05 Publication of JPH0470584A publication Critical patent/JPH0470584A/en
PURPOSE: To obtain exact two-dimensional position measurement data of a moving body by requesting the altitude data of this time from an altitude deviation accompanying the altitude data of the previous data and the movement of a moving body to compoute the two-dimensional position measurement data of the moving body in the case where the number of satellites is 3 or less.
CONSTITUTION: At first, a signal A of a Global Position System (GPS) included in a Z wave of a position measurement satellite is received through an antenna 1 and a GPS receiving part 2. A judgement part 3 judges whether the number N of satelites is 4 and more or not on the basis of a received signal A to output a control signal B into a position operation part 8. If the number N of the satellites 4 and more, the operation part 8 performs normal three-dimensional position measurement operation. In the case where the number N of the satelites is 3, the operation part 8 reads the altitude data H of the previous time from an altitude storage part 7, an altitude deviation calculation part 6 calculates an atmospheric deviation accompanying the movement of the moving body from the output of an atmosphere sensor 4 to calculate the altitude deviation ΔH accompanying the movement thereof as ΔH = F(ΔP). Next the altitude of the present time is calculated to store this value as data H into the storage part 7 so as to calculate to output the two-dimensional position measurement data on the basis of the signal a and data H.
JP18631990A 1990-07-11 1990-07-11 Satellite navigation system Pending JPH0470584A (en)
KR91007178A KR940003418B1 (en) 1990-07-11 1991-05-03 Navigation system
US07/726,280 US5265025A (en) 1990-07-11 1991-07-05 Navigation system using satellite signals
DE19914123097 DE4123097C2 (en) 1990-07-11 1991-07-09
JPH0470584A true JPH0470584A (en) 1992-03-05
JP18631990A Pending JPH0470584A (en) 1990-07-11 1990-07-11 Satellite navigation system
HUT68493A (en) * 1993-06-15 1995-06-28 Kapolka Method of and device for automatic registration of measuring data dependent on geographical place
JP3656144B2 (en) * 1996-02-21 2005-06-08 アイシン精機株式会社 Positioning device using GPS satellites
JP3499742B2 (en) * 1998-04-28 2004-02-23 三菱電機株式会社 Satellite navigation device and satellite navigation
EP1252479B1 (en) * 2000-02-03 2010-01-06 Honeywell International Inc. Device and method for altimetry system
JP2017129441A (en) * 2016-01-20 2017-07-27 セイコーエプソン株式会社 Electronic apparatus, altitude calculation program, and altitude calculation method
1990-07-11 JP JP18631990A patent/JPH0470584A/en active Pending
1991-05-03 KR KR91007178A patent/KR940003418B1/en not_active IP Right Cessation
1991-07-05 US US07/726,280 patent/US5265025A/en not_active Expired - Fee Related
1991-07-09 DE DE19914123097 patent/DE4123097C2/de not_active Expired - Fee Related
KR920003068A (en) 1992-02-29
US5265025A (en) 1993-11-23
KR940003418B1 (en) 1994-04-22
DE4123097A1 (en) 1992-01-16
CA2283904A1 (en) 1998-10-01 A system using leo satellites for centimeter-level navigation
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CA2105846A1 (en) 1994-03-16 Gps precision approach and landing system for aircraft
JPH0278907A (en) 1990-03-19 Navigation system using map data and location system for moving body
Zumberge et al. 1996 Ephemeris and clock navigation range accuracy
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CA2257351C (en) 2006-12-19 Satellite signal receiver with position extrapolation filter
GB2060306A (en) 1981-04-29 A surface navigation system for aircraft
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