LDARTA Large Scale Network of Embedded Systems for Laser
Detection and Reciprocal Targeting
Jathan Manley, Robert DeMers, Jan Jelinek, Michael Rhodes, Jay
Schwichtenberg, VicrajThomas, Brian VanVoorst, Phil Zumsteg
This work is funded by the DARPA/IXO NEST program under contract
number F33615-02-C-1175
HPECSeptember 2003
Points of ContactHoneywellVic Thomas
([email protected])Jathan Manley
([email protected])DARPADr. Vijay Raghavan, Program
Manager (IXO)
HPECSeptember 2003
OutlineLDART Application and Concept of OperationsLDART
Technology MEMS ImplementationLDART Development Efforts A Macro
PlatformCurrent Status
HPECSeptember 2003
LDART: Laser Detection & Reciprocal TargetingA lightweight,
easy-to-deploy technology for improved battlefield situation
awarenessImplemented as a patch attached to a soldier or
vehicleCombines capabilities provided by multiple systems into one
small packageDetect if soldier/vehicle has been painted by
laserAccurate location of source of laser (new
capability)Friend-or-foe identificationReciprocal targeting (new
capability)Functions are easily separableCan interface with
existing systemsSituation awareness systems e.g., Objective Force
Warrior displays and vehicle cockpit display systemsTarget
designators
HPECSeptember 2003
LDART: Laser Detection CapabilitiesDetect when soldier/vehicle
has been painted by laserRange finderTarget designatorBeam
riderSpotting BeamBattlefield illuminatorCan identify direction of
laser sourceWithin 0.06 degrees (1m for source at 1km)Can estimate
distance of laser sourceAccuracy depends of distance of source and
size of patch1m2 patch can estimate distance of target at 1km
within 30mGreater accuracy for closer sourcesContinues to track
direction and distance of source even as source and target move
relative to each otherTarget DesignatorRange Finder
HPECSeptember 2003
LDART: Hardware TechnologyHardware based on MEMS technology
being developed by HoneywellSponsored by the DARPA/MTO STAB
programThe LDART fabric consists of a large number of cellsCell
size: 1 mm2 (~40,000 cells in 8inX8in area)Each cell consists ofA
micro-lens (0.1mm diameter)Drives to move lens in x and y
directionsDetector or laser under the lens at its optical
axisCompute element to control cellCommunication links to
neighboring cellsTop and Side View of a Single Cell
HPECSeptember 2003
LDART: Hardware TechnologyIncoming laser beam can be steered
onto detector by moving lensLens position used to determine
incident angle of beamLens positioning accuracy: 0.0005mmOutgoing
(paintback) laser beam can be steered by moving lens
LDART Fabric withLarge Number of Cells
HPECSeptember 2003
MEMS DetailsLens/sensor/actuator assemblySize:
