www.saabgroup.com United States:85 Collamer CrossingsEast Syracuse, NY 13057 USATel +1 (315) 445-0550Fax +1 (315) 446-2209info@saabsensis.com

Netherlands:P.O. Box 7177300 AS ApeldoornThe NetherlandsPhone: +31 55 543 2500Fax +31 55 543 2553info@hitt.nl

Sweden:SE-164 84 StockholmSwedenTel +46 8 580 840 00Fax +46 8 580 816 92saabsecurity@saabgroup.com

MULTILATERATIONAirport Surface, Terminal and Wide Area Surveillance

Effective surveillance contributes to increasedsafety, capacity and efficiency of airspace andairports alike. Unfortunately, traditional radaralone does not provide the performancerequired to obtain these benefits. Saabmultilateration offers a proven solution to this problem.

Multilateration offers accurate surveillance and identification of all transponder-equippedaircraft in the air as well as on an airport’ssurface. It provides highly reliable data for

further processing by Air Traffic Control(ATC) displays, Advanced – Surface MovementGuidance and Control Systems (A-SMGCS), decision support tools, flowmanagement systems and airline/airportoperation applications. Controllers receiveseamless surveillance data which enablesincreased operations in low visibility conditionsand enhances safety.

Certified for ATC use, Saab multilateration isdeployed around the world for surface,

enhanced terminal and wide area surveillance.Saab multilateration has been the solution ofchoice for more than 90 locations throughoutEurope, Canada and Asia. Additionally, it is acore component of the FAA’s Airport SurfaceDetection Equipment, Model X (ASDE-X)system which Saab has installed at 35 airportsacross the U.S.

SENSOR

MULTILATERATION > SURFACE AND WIDE AREA SURVEILLANCE......................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................

Saab multilateration, a transponder based system, uses multiplesensors to capture aircraft transponder pulses and calculate positionand identification. Low cost, non-rotating sensors receive, decode,timestamp, and transmit the data from the transponder to a TargetProcessor (TP). The TP compares the reports to derive the targetposition based on the time of receipt of the signals at each sensor.

• Improved Accuracy – The multilateration process, with itstypical update rate of once per second, allows themultilateration system to provide an accuracy of five meters orbetter for surface surveillance, and 30 meters or better for widearea surveillance.

• No Additional Avionics Required – An important feature ofmultilateration is that it works with any transponder-equippedaircraft without additional avionics. Additionally,multilateration supports Automatic Dependent Surveillance –Broadcast (ADS-B) with no equipment modifications.

• Minimal Installation Requirements – Unlike traditional radar,multilateration relies on small equipment enclosures and non-rotating antennas that are installed on existing communicationtowers, terminals and other structures. Additionally,multilateration sensors can communicate with the TPvia a wide variety of communication options.

Airport Surface Surveillance

Saab multilateration offers an ideal solution for the complexity ofairport surface surveillance. At larger airports, multilaterationcomplements the existing surface movement radar system, providingconsiderably improved and more reliable data than from a singlesurveillance sensor. For smaller airports that rely on visualsurveillance, multilateration provides a cost effective surveillancesystem to enhance safety. The flexibility in configuring the systemallows coverage over the entire airport area, including the ramp andapproach/departure areas, or just the movement area. Airport vehiclescan also be equipped with low-cost transmitters enabling aircraft andvehicle tracking in a single system.

BENEFITS:

• Improved situational awareness in all weather conditions

• Enhanced safety

• Reduced runway incursions

• Improved airline operations management

• Increased capacity

• Improved airport efficiency

Multilateration supports ADS-B long squitter with

no equipment modification.

Sensor #1

Sensor #2 Sensor #3

Solution Arcfor Sensor

Combination2,3

Transponder Replies

Solution Arcfor SensorCombination 1,3

MULTILATERATION > SURFACE AND WIDE AREA SURVEILLANCE......................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................

Terminal and Wide Area Surveillance

Saab multilateration is being used worldwide for terminal, enroute,and gap filler surveillance. The system can cost-effectively scale fromsmall airport applications to cover hundreds of thousands of squaremiles. The small, low-cost sensors are easy to install in rough terrainwhere traditional radar systems often experience coverage gaps due toterrain blockage. Saab multilateration provides controllers withpositive identification, high update rates and accurate positionalinformation in all weather conditions.

Saab multilateration accurately tracks targets at both low and at highaltitudes simultaneously. Saab multilateration is being used to trackflights in a number of challenging air surveillance applicationsincluding terminal area surveillance and precision runwaymonitoring (PRM) for ATC, military range surveillance and enrouteflight following.

Saab multilateration provides a bridge to the future of surveillance –ADS-B. Each multilateration sensor is equipped to provide bothmultilateration and ADS-B positions. Installing multilateration in awide area configuration establishes the infrastructure required fortoday’s surveillance needs as well as tomorrow’s ADS-B equipage.

BENEFITS:

• Better accuracy and update rate than existing radarsystems

• Adaptable, low altitude coverage in challengingenvironments

• Low maintenance, low power consumption forremote sites

Saab multilateration provides

controllers with positive identification,

high update rates and accurate positional

information in all weather conditions.

www.saabgroup.com United States:85 Collamer CrossingsEast Syracuse, NY 13057 USATel +1 (315) 445-0550Fax +1 (315) 446-2209info@saabsensis.com

Netherlands:P.O. Box 7177300 AS ApeldoornThe NetherlandsPhone: +31 55 543 2500Fax +31 55 543 2553info@hitt.nl

Sweden:SE-164 84 StockholmSwedenTel +46 8 580 840 00Fax +46 8 580 816 92saabsecurity@saabgroup.com

Embedded Local Control & Monitoring Software (ELCMS)

• Provides local control of the RU for field maintenance

• Web based application that can run on any laptop with a web browser

Target Processor (TP)

• Computes and trackstarget positions (2D/3D)

• Performs time synchronizationof RU messages

• Reports targets in multipleindustry standard ASTERIXformats

• Manages data communicationsover wired and wireless media

• Schedules interrogations

ATC Tower Displays

Mode S A/C Datalink

A-SMGCS

Air Traffic Management System

Airline Operations

Airport Operations

Remote Control forMonitoring System

Interfaces to otherAirport Systems

Multilateration SpecificationsIndoorEquipment:

OutdoorEquipment:

EquipmentSpecifications:

Temperature -40 to 55o C 10C to 30C

Relative Humidity 5 ,%08ot02,%59otnon-condensing non-condensing

Wind Speed 95 kts (operation), 120 kts n/a(survivability)

Lightning Protection All external interfaces

Input Power Voltage 18-30 VDC or 100-240 VAC +/– 10%

Input Power Frequency 50 to 60 Hz nominal +/– 3%

Power Consumption < 90W w/o heater, < 150W w/ heater

Safety Certifications CSA, cTUVus, UL 60950, EN 55022,61000, 60215, 60950, IEC 60950, CE

RF Compatibility FCC Part 15, Class B

System PerformanceDependent on system configuration:

Transponder Types Mode S, (ELS/EHS), Mode S ES, Mode A/C

RMS Position Error surface: < 5 m(accuracy) airborne: < 30 m

Target Capacity 2000 targets

Track Initiation 5 seconds max

Target Update Rate 1–12 seconds (Adaptable)

Probability of Detection >97%

System Latency 250 msec

SSR Interrogation ICAO Annex 10 compliant

Data Output Format ASTERIX CAT 010, 011, 20, 48, CD2 (MLAT),ASTERIX CAT 21 (ADS-B), ASTERIX 19, 23, 34 (Status)

Sensor/Remote Unit (RU)

• Receives, timestamps and decodes 1090 MHz transponder reply signals and ADS-B messages

• 1030 MHz interrogations of aircraft transponders for indentification, altitude, and data link (optional)

• Can operate in receive only or receive & transmit

• Time synchronization can be achieved through RefTrans, Site Monitors, or GPS

Reference Transmitter(REFTRAN)

• Synchronizes system timingin surface applications

• Provides system self-testfunctionality

Optional high gainDME Omni

antennas for WAM

Maintenance DisplayTerminal (MDT)

• Provides user interface forSystem configuration and control

• Displays system health and status

• Provides recording capabilities andoptional 22TB recording storage vault

• Target playback functionality forperformance analysis