glen dyer, itt/exelis (pdf)
TRANSCRIPT
Surveillance and Broadcast Services System Deployment Status and APNT Applicability 2012 FAA APNT INDUSTRY DAY May 3, 2012
Overview of Presentation
• Overview of APNT candidate systems
• SBS System Deployment Status
• WAM Overlay on SBS System > Colorado Phase II Status > WAM coverage from existing radio stations
• Concluding remarks
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APNT Candidate Solutions Overview
• Three approaches for provisioning APNT services are being evaluated. These are > DME-DME with INS > WAM with uplink data link > Pseudolite
• The APNT system will likely be a hybrid system, carefully chosen to maximize existing investments > The SBS system is an existing investment that should be leveraged when
making APNT decisions > The system currently provides ADS-B, ADS-R, TIS-B and FIS-B services
- A fifth service, WAM, is currently being certified in Colorado > The SBS System coverage requirements will result in a nationwide network of
radio stations. We currently estimate that the end state system will be comprised of approximately 700 radio stations - The coverage provided by these radio stations can be leveraged, today, to provide
WAM services at en route altitudes
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SBS System Deployment Status (as of 4/12)
386 Sites Reporting on Network : 391 Sites Constructed : 95 Sites in Planning or Construction
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SBSS Architecture Augmentation for CO WAM Service Provision
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1090 ES A/V UAT A/V
ADS-R/TIS-B MessagesMode S interrogations FIS-B Messages
ATCRBSInterrogations
Radio Station Radio StationRadio Station Layout Provides RF Coverage Over a Set of Service Volumes
Radio Station Segment•• •
Network Segment (MPLS VPN)
NOCHerndon, VA Control Station Data
Center/Ashburn, VA
WSI FIS-BData SourceAndover, MA
BackupAtlanta, GA
Network Segment (MPLS VPN)ADS-B Reports, WAM Reports
Service, Equipment, SDP StatusADS-B Reports, WAM Reports
Service, Equipment, SDP Status Radar, WAM, ASDE-X Data
FAA ATC Automation SDPs FAA Service Monitor SDP FAA TIS-B Data SDP
Control Segment
WSI FIS-B
ADS-R/TIS-B Messages
Tech Center & OK City
OCNHerndon, VA
Control Station Data Center/Allen, TX
ATCRBS A/V
ATCRBS Primitives
Control Station Data Center/ Redwood City, CA
RUC Data
ADS-B Messages
ADS-R/TIS-B/FIS-B Reports
Add MLAT Radios to Radio Station Segment
Add MLAT Server, RSM & ACS to Western Service Area Control Station/Data Center
ZDV Automation SDP
Radio-CS MLAT Communications
WAM Service Delivery to ZDV
CS-SDP WAM Communications
Import RUC data from FAA
Colorado WAM Status
• All physical infrastructure has been developed and deployed for the WAM key site > WAM Key site is Montrose CO > Design calls for a number of radio stations (built) and centralized
processing in our Redwood City, CA control station (built) • WAM testing is ongoing
> First article testing has completed with all requirements passed > System acceptance testing has completed, with some minor discrepancies
to be resolved > Operational test to be scheduled by the FAA (likely in June)
• Expect an Initial Operations Capability decision in August, In Service Decision by December
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Analysis of WAM Performance from Existing SBS Radios – Seattle En Route Area Radio Station Locations
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Analysis of WAM Positioning Performance from Existing SBS Radios – Calculated Error From Truth for Selected Tracks
0 200 400 600 800 1000 1200 1400 16000
0.5
1
1.5
2
2.5
3
3.5
4
x 104
Horizontal Position Error (ft)
Num
ber o
f Occ
urre
nces
Multilateration Horizontal Position Error
Mean: 71 (ft)Std: 184 (ft)68 pct: 76 (ft)95 pct: 120 (ft)
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ADS-B Equipped Targets
Requirement: The positional error shall not exceed ±210 feet for 68TH percentile and ±420 feet for the 95TH percentile for terminal and en route
Measured:
Indication of WAM Coverage from Existing SBS Radios – Area Where Service Would be Available
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Number of Radio Stations in View
WAM Solution Can be Calculated for Green and Blue Area (Plot is for 18,000 ft MSL)
Concluding Remarks
• SBS System deployment is well underway, with over 420 radio stations built to date (33 in Alaska, 391 CONUS)
• A fifth service, WAM, is nearing qualification completion
• The SBS system will provide substantial WAM coverage with centralized WAM processing
• This infrastructure investment should be leveraged for APNT
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