Introduction
This page covers the installation and configuration of the ADS-B (Automatic Dependent Surveillance-Broadcast) plugin which enables AdvanceGuard® to receive data via your ADS-B receivers. This plugin enables AdvanceGuard® and Sea360® to display the ADS-B targets on the map using the appropriate identifier and classification icon. In addition AdvanceGuard® or Sea360® will correlate incoming ADS-B target updates with the radar targets allowing known targets to be automatically marked as friendly meaning they will not trigger alarms. The ability to control which ADS-B targets are treated as friend or foe is configurable and can be based on the unique Id or the classification.
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Overview
Witness supports integration with many different types of external systems through the use of plugins.
The ADS-B plugin passes information from your existing ADS-B receivers into AdvanceGuard® or Sea360®, such as location information and flight numbers transmitted by aircraft. AdvanceGuard® then correlates this information with radar tracks to provide accurate classification of detected objects and additional information such as flight numbers of aircraft.
The ADS-B Plugin
Witness supports integration with many different types of external systems through the use of plugins.
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The plugin can be selected during setup and will automatically be installed in the correct location. |
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The ADS-B Plugin relies on using the UDP Protocol to receive messages from a compatible ADS-B receiver.
Provide This is a link for the online reference for that protocol.
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to a document which describes the structure for the transmission of ADS-B messages: https://www.eurocontrol.int/publication/cat021-eurocontrol-specification-surveillance-data-exchange-asterix-part-12-category-21.
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It is version 0.23 that the plugin has been designed to work with. |
Configuring the ADS-B Plugin in AdvanceGuard® or Sea360®
The ADS-B Plugin will appear as a node under the Integration Configurations folder within the Configuration Tree. The settings can be viewed and edited by enabling the Config Function, then selecting the plugin in Integration Configurations, within the Configuration Tree. Configuration settings will then be available in the Configuration Panel.
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ADS-B Plugin Fields
Plugin Enabled: Select to enable the ADS-B Plugin.
Name: The ADS-B Plugin name.
System Id: ID of the system sending the sightings.
Timer Interval (s): The time period for reporting health and cleaning up stale tracks.
Track Expiry (s): This specifies how long a track will be kept alive in AdvanceGuard® whilst it waits for an update. If a Track Detection update is not received during this expiry period then the track will be automatically deleted and purged from the AdvanceGuard® system.
Show All Targets: If enabled, this option will show all targets, otherwise, only ground based targets will be processed.
Send Non Friendly: If enabled, both friendly and non friendly tracks will be processed, otherwise, only friendly tracks will be processed.
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UDP Port: The port number used for the UDP Servercommunications.
Remote IP Address: The Remote IP Address of the UDP ServerThe ADS-B server address.
Tag Overrides
Classification overrides have been added to the ADS-B plugin so specific, known vehicles / planes / targets etc can be classified within it.
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Address Type: These are from the CAT-21 specifications:
Non Unique: Non unique address.
ICAO(airport code or location indicator): ICAO (International Civil Aviation Organization) address,typically, an aeroplane.
Surface Vehicle: Surface vehicle address.
Vehicle: Anonymous address.
Other
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: Reserved for future use.
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Target Address (Hex): A hex string that corresponds with the expected ID of a target.
Tag Override: Friendly name given to the known targetThis provides us with a method of overriding the incoming tracks with our own tags and classifications.
For example, if we had a ground transponder with a target address of #000001 we could tag it with "Bob's car" and force the classification to be a car.
Classification: The Classification Model of the target - see https://navtechradar.atlassian.net/wiki/spaces/TUN/pages/790069631/Classification+Configs#Classification-Models
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IFF (Identification Friend or Foe) Overrides
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This allows specific classifications and/or an incoming target address to be classed as friendly or not.
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Classification: The Classification Model:
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Address Type:
Non Unique
ICAO(airport code or location indicator)
Surface Vehicle
Vehicle
Other
Target Address :
Stuff from release notes:
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Created a new security rule check that will mark a track as a friend if it’s within a configurable distance of an IFF track and also within a configurable distance to a breach line. This is designed to avoid nuisance alarms from tugs which are towing aircraft with active ADS-B transponders across CP line
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Ensured that ADS-B numeric tags appear as hex within the UI
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Changed the default ADS-B classification probability to be 0 for unclassified to match radar track sightings. When classified all ADS-B targets will have a probability of 1
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Added a non-friendly sighting filter to ADS-B plugin to avoid passing non-friendly targets into AdvanceGuard. This now the default option
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Added classification override to ADS-B plugin so specific know vehicles / planes can be classified within the ADS-B plugin
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(Hex): The Hex value of an incoming target to override the default setting for the classification. For example, if all cars are considered friendly, then adding an exception would mean that a target marked as a car, which has the given Address Type and Target Address, would be considered as not friendly.
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Related Information
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