EP1977265A1 - Verfahren und vorrichtung zur bestimmung von protection-levels für satellitennavigationssysteme - Google Patents
Verfahren und vorrichtung zur bestimmung von protection-levels für satellitennavigationssystemeInfo
- Publication number
- EP1977265A1 EP1977265A1 EP07718109A EP07718109A EP1977265A1 EP 1977265 A1 EP1977265 A1 EP 1977265A1 EP 07718109 A EP07718109 A EP 07718109A EP 07718109 A EP07718109 A EP 07718109A EP 1977265 A1 EP1977265 A1 EP 1977265A1
- Authority
- EP
- European Patent Office
- Prior art keywords
- integrity risk
- alert
- integrity
- interval
- satellite navigation
- Prior art date
- Legal status (The legal status 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 status listed.)
- Ceased
Links
- 238000000034 method Methods 0.000 title claims abstract description 19
- 238000013459 approach Methods 0.000 abstract description 3
- 230000004888 barrier function Effects 0.000 description 1
Classifications
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01S—RADIO DIRECTION-FINDING; RADIO NAVIGATION; DETERMINING DISTANCE OR VELOCITY BY USE OF RADIO WAVES; LOCATING OR PRESENCE-DETECTING BY USE OF THE REFLECTION OR RERADIATION OF RADIO WAVES; ANALOGOUS ARRANGEMENTS USING OTHER WAVES
- G01S19/00—Satellite radio beacon positioning systems; Determining position, velocity or attitude using signals transmitted by such systems
- G01S19/01—Satellite radio beacon positioning systems transmitting time-stamped messages, e.g. GPS [Global Positioning System], GLONASS [Global Orbiting Navigation Satellite System] or GALILEO
- G01S19/13—Receivers
- G01S19/20—Integrity monitoring, fault detection or fault isolation of space segment
Definitions
- the invention relates to a method and a device for determining protection levels for satellite navigation systems.
- Galileo satellite navigation system requires only one integrity service with a fixed integrity risk and fixed horizontal and vertical alert barriers.
- users require a concept that requires different integrity requirements at different stages of the flight.
- the object is achieved by a method for determining protection levels in a satellite navigation system comprising the steps of (1) determining an integrity risk at the alert limit for different situations, (2) determining an interval of alert limits, between the largest set of alert Limits and integrity risk, which result in an excessively high integrity risk, and the smallest set of alert limits and integrity risk, which yield an acceptable integrity risk, and (3) perform interval nesting for the interval of alert limits determined in the previous step, the Integrity risk is split between horizontal and vertical as determined by the ratio of these integrity risks to the largest set of alert limits.
- the method according to the invention determines the integrity risk according to this method, it is no longer necessary for the method to know the instantaneous flight phase, since it always determines the protection level so that if the protection level for a flight phase satisfies the conditions of Table 3.7. 2.4-1 in Part 1 of Annex 10 to the ICAO Agreement, the integrity risk is also properly selected. By choosing the distribution, the smallest possible alert limit is always determined. Interval nesting ensures that the integrity risk is always conservative. Interval nesting also ensures that smaller conservative alert limits can be determined by using better processors in the receiver.
- a device for determining protection levels in a satellite navigation system which is set up for carrying out a method for determining protection levels in a satellite navigation system comprising the steps (1) determining an integrity risk at the alert limit for various Situations, (2) determine an interval of alert limits, between the largest set of alert limits and integrity risk, which results in too high a health risk, and the smallest set of alert limits and integrity risk, which give an acceptable integrity risk and (3 ) perform interval nesting for the alert limit interval determined in the previous step, dividing the integrity risk between horizontal and vertical, as determined by the ratio of these integrity risks to the largest set of alert limits.
- the device according to the invention determines the integrity risk according to this method, it is no longer necessary for the device to know the instantaneous flight phase, since it always determines the protection level so that if the protection level for a flight phase meets the conditions of Table 3.7. 2.4-1 in Part 1 of Annex 10 to the ICAO Agreement, the integrity risk is also properly selected. By choosing the division is always the smallest possible Alert limit determined. Interval scheduling ensures that the integrity risk is always conservative. Interval scheduling also ensures that smaller conservative alert limits can be determined by using better processors in the receiver.
- the integrity risk at the alert limit is determined for more than one application situation, eg. From Category I Precision Approaches to Oceanic Enroute (as in Table 3.7.2.4-1 in Part 1 of Annex 10 to the ICAO Agreement).
- the interval of the alert limits, between the largest set of alert limits and integrity risk, which results in a high integrity risk, and the smallest set of alert limits and integrity risk, which gives an acceptable integrity risk is determined.
- interval interval of the alert limits determined in the second step is performed, dividing the integrity risk between horizontal and vertical such as the ratio of these integrity risks to the largest set of alert limits results.
- the integrity risk is determined by the method according to the invention, it is no longer necessary for the receiver to know the instantaneous flight phase, since it always calculates the protection level so that if the protection level for a flight phase satisfies the conditions of Table 3.7.2.4 -1 in Part 1 of Annex 10 to the ICAO Agreement, the integrity risk is also properly selected. By choosing the distribution, the smallest possible alert limit is always determined. Interval scheduling ensures that the integrity risk is always conservative. Interval scheduling also ensures that smaller conservative alert limits can be determined by using better processors in the receiver.
- a device is disclosed which is set up for the method according to the invention. Such a device is, for example, the receiver or part of a receiver for receiving signals from satellite navigation systems.
Landscapes
- Engineering & Computer Science (AREA)
- Radar, Positioning & Navigation (AREA)
- Remote Sensing (AREA)
- Computer Security & Cryptography (AREA)
- Computer Networks & Wireless Communication (AREA)
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Position Fixing By Use Of Radio Waves (AREA)
- Navigation (AREA)
Abstract
Description
Claims
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE102006003308A DE102006003308A1 (de) | 2006-01-23 | 2006-01-23 | Verfahren und Vorrichtung zur Bestimmung von Protection-Levels für Satellitennavigationssysteme |
| PCT/DE2007/000135 WO2007082527A1 (de) | 2006-01-23 | 2007-01-22 | Verfahren und vorrichtung zur bestimmung von protection-levels für satellitennavigationssysteme |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| EP1977265A1 true EP1977265A1 (de) | 2008-10-08 |
Family
ID=37946301
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| EP07718109A Ceased EP1977265A1 (de) | 2006-01-23 | 2007-01-22 | Verfahren und vorrichtung zur bestimmung von protection-levels für satellitennavigationssysteme |
Country Status (4)
| Country | Link |
|---|---|
| US (1) | US8346469B2 (de) |
| EP (1) | EP1977265A1 (de) |
| DE (1) | DE102006003308A1 (de) |
| WO (1) | WO2007082527A1 (de) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| ES2498720T3 (es) * | 2010-12-01 | 2014-09-25 | European Space Agency | Método y aparato para determinar un parámetro de indicación de integridad que indica la integridad de la información de posicionamiento determinada en un sistema de posicionamiento global |
Family Cites Families (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6268858B1 (en) * | 1992-09-08 | 2001-07-31 | L-3 Communications Corporation | Database correlatable chart generation system and method |
| US5969670A (en) * | 1998-01-22 | 1999-10-19 | Trimble Navigation Limited | Inexpensive monitoring technique for achieving high level integrity monitoring for differential GPS |
| US6281836B1 (en) * | 1999-05-21 | 2001-08-28 | Trimble Navigation Ltd | Horizontal/vertical protection level adjustment scheme for RAIM with baro measurements |
| US6760663B2 (en) * | 1999-09-14 | 2004-07-06 | Honeywell International Inc. | Solution separation method and apparatus for ground-augmented global positioning system |
| US6515618B1 (en) * | 2000-11-29 | 2003-02-04 | Trimble Navigation Ltd. | Fault detection and exclusion in a positioning system receiver |
| US6847893B1 (en) * | 2003-01-22 | 2005-01-25 | Trimble Navigation, Ltd | Horizontal/vertical exclusion level determination scheme for RAIM fault detection and exclusion implementation |
-
2006
- 2006-01-23 DE DE102006003308A patent/DE102006003308A1/de active Pending
-
2007
- 2007-01-22 WO PCT/DE2007/000135 patent/WO2007082527A1/de not_active Ceased
- 2007-01-22 EP EP07718109A patent/EP1977265A1/de not_active Ceased
-
2008
- 2008-07-23 US US12/178,450 patent/US8346469B2/en active Active
Non-Patent Citations (1)
| Title |
|---|
| See references of WO2007082527A1 * |
Also Published As
| Publication number | Publication date |
|---|---|
| DE102006003308A1 (de) | 2007-07-26 |
| WO2007082527A1 (de) | 2007-07-26 |
| US20090043503A1 (en) | 2009-02-12 |
| US8346469B2 (en) | 2013-01-01 |
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