System Description
SystemDescriptionandInstallationManualforRangeFinder ICD10000‐01
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SVQuality‐NACv
ByteOffset ByteName FieldDescription
28 NV0 NV0 HorizontalVelocityError
0x00
0x01
0x02
0x03
0x04
0x05‐0xFF
Unknownor≥10m/s
<10m/s
<3m/s
<1m/s
<0.3m/s
Reserved
SVQuality
–
NACv.TheNACv fieldreportsthehorizontalvelocityerrorwith95%certainty.
SVQuality
–
SIL
SVQuality–SILSupplement
SVQuality–SystemDesignAssurance
ByteOffset ByteName FieldDescription
29 SL0 Byte Bit SVQuality‐ SIL
SL0 5‐7
4
3
2
1
0
Reserved
SystemDesignAssurance
SystemDesignAssurance
SILSupplement
SIL
SIL
SVQuality
–
SystemDesignAssuranceTheSystemDesignAssurancefielddefinesthefailureconditionthattheposition
transmissionchainisabletosupport.SeethetablebelowforSDAformat:
Bit4 Bit3 SupportedFailureCondition Probabilityofundetectedfaultcausingtransmissionoffalse
information
0
0
1
1
0
1
0
1
Unknown/Nosafetyeffect
Minor
Major
Hazardous
>1x10
‐3
perflighthourorunknown
≤1x10
‐3
perflighthour
≤1x10
‐5
perflighthour
≤1x10
‐7
perflighthour
SVQuality
–
SILSupplement
TheSourceIntegrityLevelSupplementprovideswhethertheSILprobabilityisbaseduponapersampleorperhour
probabilityofexceedingtheradiusofcontainment.Ifbit2issetto“ONE”thentheprobabilityofexceedingtheradiusof
containmentisbasedupon“persample”.Ifbit2issetto“ZERO”thentheprobabilityofexceedingtheradiusof
containmentisbasedupon“perhour”.
SVQuality
–
SILTheSourceIntegrityLevelprovidestheprobabilityoftheADS‐Bparticipantexceedingtheradiusof
containmentspecifiedbytheNICfield.
Bit1 Bit0 ProbabilityofExceedingtheNICContainmentRadius(Rc)
0
0
1
1
0
1
0
1
Unknownor> 1x10
‐3
perflighthourorpersample
≤1x10
‐3
perflighthourorpersample
≤1x10
‐5
perflighthourorpersample
≤1x10
‐7
perflighthourorpersample
SVQuality‐GVA
ByteOffset ByteName FieldDescription
30 SG0 SGO GeometricVerticalAccuracy
0x00
0x01
0x02
0x03‐0xFF
Unknownor>150meters
≤150meters
≤45meters
Reserved
SVQuality‐NICbaro
ByteOffset ByteName FieldDescription
31 NB0 NBO BarometricAltitudeIntegrityCode
0x00
0x01
0x02‐0xFF
BarometricAltitudebaseduponGilhamcodedinputthathasnotbeencross‐checkedagainstanother
sourceofpressurealtitude.
BarometricAltitudebaseduponGilhamcodedinputthathasbeencross‐checkedagainstanother
sourceofpressurealtitudeorisbasedonanon‐Gilhamcodedsource.
Reserved