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7 - Search and Rescue Services
SecondarySurveillanceRadar
(extends: SurveillanceRadar)
^
<<feature>> [Logical
View::AIXM::AIXM
Features::Surveillance]
Definition
Secondary Surveillance Radar (SSR aka Secondary Radar (SECRA)) is a radar
system in which the object to be detected is fitted with the cooperative equipment in
the form of a radio receiver/transmitter (transponder). Radar pulses transmitted from
the searching transmitter/receiver (interrogator) site are received in the cooperative
equipment and used to trigger a distinctive transmission from the transponder. This
reply transmission, rather than a reflected signal, is then received back at the
transmitter/receiver site for processing and display at an air traffic control facility.
Properties
transponder CodeTransponderType Mode S, or mode select, despite also
being called a transponder radar
system replacement for Air Traffic
Control Radar Beacon System
(ATCRBS), is actually a data packet
protocol which can be used to
augment ATCRBS transponder
positioning equipment (radar and
SecondarySurveillanceRadar
(extends: SurveillanceRadar)
^
TCAS). Mode S is designed to fully
interface with ATCRBS systems:
mode S SSRs can interrogate
ATCRBS transponders, and AIS-P
transponders will also reply to older
ATCRBS and TCAS interrogations.
autonomous CodeYesNoType Indicates the SRR is autonomous or
independent.
monopulse CodeYesNoType Monopulse radar is an adaptation of
conical scanning radar which sends
additional information in the radar
signal in order to avoid problems
caused by rapid changes in signal
strength. The system also makes
jamming more difficult. Most radars
designed since the 1960s are
monopulse systems.
Used by
EquipmentChoice
See diagrams: 2 - Surveillance Equipment
1- Radio Frequency Limitation
SectorDesign ^
<<object>> [Logical View::AIXM::AIXM
Features::Procedure::Departur
e Procedure]
Definition
Design criteria used for the NavigationAreaSector.
Properties
turnDirection CodeDirectionTurnType A code indicating the
direction of the turn.
designGradient ValSlopeType Procedure design Gradient
terminationAltitude ValDistanceVerticalType Termination Altitude
turnPermitted CodeYesNoType Indicates if the sector is
clear for the direction of
SectorDesign ^
turn.
annotation Note(0..*)
Used by
NavigationAreaSector
See diagrams: 2 - NavigationArea
SegmentLeg ^
<<feature>> [Logical View::AIXM::AIXM
Features::Procedure::Procedur
e Overview]
Note: This is an
Abstract class
Definition
A portion of a procedure as defined by two consecutive significant points.
Properties
endConditionDesignator CodeSegmentTerminationType An indication of the
event that allows
identifying the end
of the leg and the
start of the next leg
on the procedure.
For example,
reaching an altitude
or outbound timing.
legPath CodeTrajectoryType A code defining a
specific type of flight
path such as arc,
base turn outbound,
base turn inbound,
track, proc turn,
hold in lieu.
legTypeARINC CodeSegmentPathType A comprehensive
description of the
'path and terminator'
concept is given in
ARINC Specification
424, Attachment 5,
Path and
Terminator.
SegmentLeg ^
course ValBearingType The value of the
course angle in
degrees.
courseType CodeCourseType A code indicating
the type of course to
be observed. E.g.
true track, magnetic
track, heading, VOR
radial, true bearing,
magnetic bearing.
courseDirection CodeDirectionReferenceType Indicates flight
direction to/from the
navaid providing the
course guidance.
turnDirection CodeDirectionTurnType A code indicating
the direction of the
turn.
speedLimit ValSpeedType The value of the
speed limit on the
procedure leg.
Rules: As a
plausibility rule,
value should be
equivalent to
between 0 and 400,
when expressed in
Km/h.
speedReference CodeSpeedReferenceType A code indicating
the reference
system for a speed
value.
speedInterpretation CodeAltitudeUseType A code indicating
how the speed
attributes of a
procedure leg
should be
interpreted.
bankAngle ValAngleType The recommended
bank angle of the
aircraft on the turn.
Rules: As a
plausibility rule,
value should be
　
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