WO2010049088A1 - Système de guidage et procédé pour détecter une perturbation au moins locale affectant un système de positionnement assisté par satellite au moyen de ce système de guidage - Google Patents

Système de guidage et procédé pour détecter une perturbation au moins locale affectant un système de positionnement assisté par satellite au moyen de ce système de guidage Download PDF

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Publication number
WO2010049088A1
WO2010049088A1 PCT/EP2009/007556 EP2009007556W WO2010049088A1 WO 2010049088 A1 WO2010049088 A1 WO 2010049088A1 EP 2009007556 W EP2009007556 W EP 2009007556W WO 2010049088 A1 WO2010049088 A1 WO 2010049088A1
Authority
WO
WIPO (PCT)
Prior art keywords
satellite
signals
control system
local
receivers
Prior art date
Application number
PCT/EP2009/007556
Other languages
German (de)
English (en)
Inventor
Thomas Feuerle
Peter Hecker
Original Assignee
Technische Universität Braunschweig Carolo-Wilhelmina
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 Technische Universität Braunschweig Carolo-Wilhelmina filed Critical Technische Universität Braunschweig Carolo-Wilhelmina
Publication of WO2010049088A1 publication Critical patent/WO2010049088A1/fr

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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
    • G01S5/00—Position-fixing by co-ordinating two or more direction or position line determinations; Position-fixing by co-ordinating two or more distance determinations
    • G01S5/02—Position-fixing by co-ordinating two or more direction or position line determinations; Position-fixing by co-ordinating two or more distance determinations using radio waves
    • G01S5/06—Position of source determined by co-ordinating a plurality of position lines defined by path-difference measurements
    • 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
    • G01S19/03—Cooperating elements; Interaction or communication between different cooperating elements or between cooperating elements and receivers
    • G01S19/08—Cooperating elements; Interaction or communication between different cooperating elements or between cooperating elements and receivers providing integrity information, e.g. health of satellites or quality of ephemeris data
    • 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
    • G01S19/14—Receivers specially adapted for specific applications
    • G01S19/15—Aircraft landing systems
    • 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
    • G01S5/00—Position-fixing by co-ordinating two or more direction or position line determinations; Position-fixing by co-ordinating two or more distance determinations
    • G01S5/0009—Transmission of position information to remote stations
    • G—PHYSICS
    • G08—SIGNALLING
    • G08G—TRAFFIC CONTROL SYSTEMS
    • G08G5/00—Traffic control systems for aircraft, e.g. air-traffic control [ATC]
    • G08G5/0004—Transmission of traffic-related information to or from an aircraft
    • G08G5/0013—Transmission of traffic-related information to or from an aircraft with a ground station
    • G—PHYSICS
    • G08—SIGNALLING
    • G08G—TRAFFIC CONTROL SYSTEMS
    • G08G5/00—Traffic control systems for aircraft, e.g. air-traffic control [ATC]
    • G08G5/0017—Arrangements for implementing traffic-related aircraft activities, e.g. arrangements for generating, displaying, acquiring or managing traffic information
    • G08G5/0026—Arrangements for implementing traffic-related aircraft activities, e.g. arrangements for generating, displaying, acquiring or managing traffic information located on the ground
    • G—PHYSICS
    • G08—SIGNALLING
    • G08G—TRAFFIC CONTROL SYSTEMS
    • G08G5/00—Traffic control systems for aircraft, e.g. air-traffic control [ATC]
    • G08G5/0073—Surveillance aids
    • G08G5/0082—Surveillance aids for monitoring traffic from a ground station
    • 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
    • G01S2205/00—Position-fixing by co-ordinating two or more direction or position line determinations; Position-fixing by co-ordinating two or more distance determinations
    • G01S2205/001—Transmission of position information to remote stations
    • G01S2205/002—Transmission of position information to remote stations for traffic control, mobile tracking, guidance, surveillance or anti-collision
    • G01S2205/003—Transmission of position information to remote stations for traffic control, mobile tracking, guidance, surveillance or anti-collision for aircraft positioning relative to the ground

Definitions

  • the invention relates to a control system with a plurality of distributed regionally distributed and networked to a navigation unit Leitstationen, the satellite-based position locating receiver for receiving time signals for time synchronization by means of the time signals, with at least one satellites position location receiver using the guide and at least one monitoring unit for monitoring the local availability satellite-based position location.
  • the invention further relates to a method for detecting an at least local disturbance of a satellite-based positioning system with such a guidance system.
  • GNSS global navigation satellite systems
  • SBAS Space Based Augmentation Systems
  • EGNOS European Geostationary Navigaiton Overlay Signal
  • WAS Wide Area Augmentation System
  • MSAS Multi-Transport Satellite Based Augmentation System
  • LAAS FAA Local Area Augmentation System
  • Satellite-based position determination is, on the one hand, localized disturbances, for example due to shadowing, and, on the other, more extensive disturbances, in particular due to atmospheric influences.
  • Many causes of satellite positioning systems may include satellite clock errors, satellite orbit orbiting, satellites orbiting, receiver noise, multipath reception, and ionosphere and troposphere refractions.
  • Ionospheric perturbations occur primarily in the vicinity of the magnetic poles or magnetic erosion of the earth. The intensity of ionospheric disturbances depends on solar activities. Also, with increased solar activity significantly larger areas of the earth's surface are affected by corresponding ionospheric disturbances.
  • the object is achieved with the control system of the type mentioned by the fact that the control system for detecting an at least local disturbance of the satellite-based position location system by merging and correlation of occurring in the position location signals of the regionally distributed satellite positioning receiver of the Navigationsleitstationen is set up. It is proposed to use the satellite-supported position location receivers which are present in any case in the navigation control stations for receiving time signals for time synchronization not only for time synchronization, but also for detecting at least local interference of the satellite-supported position location system. The position locating receivers which are present anyway in the navigation control station are thus additionally used for fault detection, without the need for further hardware expenditure.
  • the additional functionality can be implemented in a simple manner, for example by additional software.
  • An advantage of the position location receiver of the modified navigation control station is that the navigation control station is usually already closely available.
  • ADS-B stations are distributed over land to receive transponder signals from aircraft.
  • a uniform time base is provided by the GPS time obtained with GP S receivers, which includes a Timestamp for the data packets containing transponder information supplies.
  • Signals of the regionally distributed satellite-supported position-location receivers of the navigation control stations which are collected during position location are brought together and correlated with one another in order to obtain statements about the local availability of the satellite-supported position location system.
  • the control system can be set up, for example, to detect an at least local disturbance as a function of filter-extracted runtime disturbances of the signals sent by satellites to position locating receivers.
  • filtering is deterministic and thus provides a predictable result.
  • By filtering maturities used for determining the position for example, short-term changes can be registered. Jumps in the recorded transit times indicate disturbances.
  • Such jumps can be detected by time derivations of the propagation time information, whereby disturbances can be detected on the basis of the temporary changes of the time-derived runtime signal.
  • the navigation control stations preferably contain transponder signal receivers for receiving navigation signals from vehicles, for example, such as aircraft, and are set up for the time synchronization of the navigation signals by means of the time signals and for the transmission of the time-synchronized navigation signals in the control system.
  • the transponder signal receivers are further used according to the teachings of the present invention to obtain from the runtime signals information about the local quality and availability of the satellite positioning system.
  • the control system can furthermore be set up to detect an at least local disturbance as a function of Doppler effects occurring in the navigation control stations during position determination with the regionally distributed satellite-based position location receivers. In this way, errors generated by moving objects and reflections can be detected, which limit the local availability of the satellite-based position location system.
  • the object is further achieved by the method for detecting an at least local disturbance of a satellite-based position locating system with such a control system by merging and filtering of locating located in position signals regionally distributed satellite position locating receiver of Navigationsleitstationen and transmitting a detected at least local disturbance of the satellite-based position location system to one of the navigational control stations forming a navigation control unit independent guidance devices.
  • Figure 1 block diagram of a control system with a plurality of regionally distributed and to a navigation control unit networked navigation control station;
  • FIG. 1 shows a block diagram of a control system 1 which has a multiplicity of navigation control stations 2 arranged regionally.
  • the navigation control stations are, for example, ADS-B stations of an air traffic control system.
  • the ADS-B stations have transponder signal receivers for receiving aircraft navigation signals and satellite position locating receivers, such as GP S receivers, which are used exclusively to receive time signals for time synchronization of the received transponder signals by means of the time signals received via the satellite-based position location system.
  • satellite position locating receivers such as GP S receivers
  • the navigation control stations 2 are connected to each other via an associated central 3a, 3b, 3c to a Navigationsleitmaschineen 4a, 4b, 4c.
  • the navigation control units 4a, 4c are associated, for example, with an airport A or an airport B.
  • the central units a, b, x, 3a, 3b, 3c may optionally be connected to further local cells 5a, 5b.
  • satellite position-based position location signals are received and combined and correlated with one another in order to detect at least local interference of the satellite-supported position location system.
  • runtime signals of the adjacent navigational control stations 2 can be compared with one another and deviations can be used to detect runtime disturbances and local disturbances of the satellite-supported position locating system.
  • the use of the ADS-B stations 2 for the purpose of detecting local controls of the satellite-based position location system also has the advantage that the density distribution of the ADS-B stations near the airport is higher and the location of the GPS antennas is as far as possible free of multiple lanes.
  • the receivers contained in the Navigationsleitstationen 2 also provide other signals, such as Doppler frequency, quantification factors, etc., which can be evaluated to detect local disturbances of the satellite-based position location system.
  • Temporary multipath propagation disturbances and receiver-specific problems can be eliminated from the correlation of the position location signals, in particular the transit times, by suitable filter algorithms in central computer units.
  • the use of the networked navigational control stations 2 for detecting at least local control of the satellite-supported position location system has the advantage that the existing hardware can be used and the density of regionally distributed navigation control stations 2 is relatively high, especially in air traffic control systems.
  • the guidance system 1 can similarly be constructed for other traffic systems, such as trains, road traffic, etc., and the traffic system can be used for this purpose.
  • FIG. 2 shows a sketch of a navigation control station 2 with a transponder signal receiver 6, which is provided for receiving transponder signals T, which are transmitted for the purpose of identifying aircraft 7.
  • the transponder signal receiver 6 has a position location receiver 8, which has so far been submitted only for receiving time information from satellites 9.
  • the position location receiver 8 is now further used to evaluate position sorting signals, such as, in particular, runtime signals in order to detect local disturbances of the satellite-supported location system.
  • position sorting signals such as, in particular, runtime signals
  • the position locator 8 is incapable of detecting any critical disturbances, such as disturbances resulting from increased electron activity in the ionosphere.
  • the navigation control units 2 require only relatively simple position location receivers 8, which themselves do not have to be equipped to detect disturbances, for example in the ionosphere.
  • the plurality of regionally distributed satellite position locating receivers 8 makes it possible to detect local disturbances and thereby eliminate local, to a position locating receiver 8 related problems by comparing the signals of adjacent Navigationsleitstationen 2.
  • the existing ADS-B stations 2 including the connected GPS receivers By using the existing ADS-B stations 2 including the connected GPS receivers to monitor the GPS constellations of the current performance of the GPS system, it is possible to predict the impact of detected ionospheric disturbances.
  • a network of existing GPS-Ll receivers within an ATM network is used.
  • the essential parameters of a satellite navigation system can also be monitored within an air traffic management ATM (Air Traffic Management ATM) or an air traffic control (Air Traffic Control ATC) data network and it is a statement about the integrity of a position received by ADS-B due to the determined current performance of a satellite navigation system is possible.
  • the control system 1 thus creates the prerequisite for the use of satellite-based position location in the traffic control, without additional infrastructure is required.

Landscapes

  • Engineering & Computer Science (AREA)
  • Radar, Positioning & Navigation (AREA)
  • Remote Sensing (AREA)
  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Aviation & Aerospace Engineering (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Computer Security & Cryptography (AREA)
  • Position Fixing By Use Of Radio Waves (AREA)

Abstract

L'invention concerne un système de guidage (1) comprenant plusieurs stations de guidage de navigation (2) réparties par région et interconnectées pour former une unité de guidage de navigation (4a, 4b, 4c). Ces stations de guidage de navigation comprennent des récepteurs de positionnement assistés par satellite (8) conçus pour recevoir des signaux temporels en vue d'une synchronisation temporelle au moyen des signaux temporels. Ledit système de guidage comprend également un dispositif de guidage utilisant des récepteurs de positionnement assisté par satellite (8), et au moins une unité de surveillance destinée à surveiller la disponibilité locale d'une fonction de positionnement assisté par ordinateur. Ce système de guidage (1) sert à détecter une perturbation au moins locale affectant le système de positionnement assisté par satellite, par combinaison et corrélation de signaux provenant des récepteurs de positionnement assisté par satellite, répartis par région (8), des stations de guidage de navigation (2), ces signaux étant générés pendant l'étape de positionnement.
PCT/EP2009/007556 2008-10-28 2009-10-22 Système de guidage et procédé pour détecter une perturbation au moins locale affectant un système de positionnement assisté par satellite au moyen de ce système de guidage WO2010049088A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE102008053508A DE102008053508A1 (de) 2008-10-28 2008-10-28 Leitsystem und Verfahren zur Erkennung einer mindestens lokalen Störung eines satellitengestützten Positionssystems mit einem Leitsystem
DE102008053508.7 2008-10-28

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Publication Number Publication Date
WO2010049088A1 true WO2010049088A1 (fr) 2010-05-06

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PCT/EP2009/007556 WO2010049088A1 (fr) 2008-10-28 2009-10-22 Système de guidage et procédé pour détecter une perturbation au moins locale affectant un système de positionnement assisté par satellite au moyen de ce système de guidage

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WO (1) WO2010049088A1 (fr)

Citations (1)

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Publication number Priority date Publication date Assignee Title
US20080211709A1 (en) * 1999-03-05 2008-09-04 Smith Alexander E Deployable passive broadband aircraft tracking

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DE19537923A1 (de) * 1995-10-12 1997-04-17 Daimler Benz Aerospace Ag Verfahren zur Erzeugung von Korrekturwerten für einen Nutzer eines Satelliten-Navigationssystems
US7429950B2 (en) * 1999-03-05 2008-09-30 Era Systems Corporation Method and apparatus to extend ADS performance metrics

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Publication number Priority date Publication date Assignee Title
US20080211709A1 (en) * 1999-03-05 2008-09-04 Smith Alexander E Deployable passive broadband aircraft tracking

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MCLEAN D: "OPERATIONAL REQUIREMENTS FOR FULLY AUTOMATIC FLIGHT", AIRCRAFT ENGINEERING, BUNHILL PUBLICATIONS LTD. LONDON, GB, vol. 75, no. 6, 1 January 2003 (2003-01-01), pages 570 - 574, XP001185332 *
MING LUO ET AL: "LAAS Ionosphere Spatial Gradient Threat Model and Impact of LGF and Airborne Monitoring", ION GPS/GNSS, XX, XX, 1 January 2003 (2003-01-01), pages 2255 - 2274, XP007905931 *
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