© 2010 SRC FOR OFFICIAL USE ONLY. Distribution limited to Department of Defense (DoD) and DoD Contractors ONLY. Exempt from Mandatory Disclosure under the FOIA. Exemption 3 Applies. Derived from Source: Security Classification Guide DARPA-CG-255 Revision 2, Dated: 15 Dec 2008, Declassify 7 June 2029 WARNING. EXPORT CONTROLLED DATA. This document contains Technical Data, the use of which is restricted by the U.S. Arms Export Control Act. It may not be transferred to any foreign person in the United States or abroad, except as authorized by the U.S. Department of State in accordance with International Traffic in Arms Regulations (ITAR). The data subject to this restriction are found on those pages marked with the following legend: “Export Controlled Data.” FOPEN-GXP Kickoff Meeting FORESTER System Overview Doug Colclough, UNCLASSIFIED//FOUO//EXPORT CONTROLLED DATA

22SEP2010 FORESTER Summary ParameterValue Operating FrequencyUHF MHz ModesGMTI, SAR, AMTI Dismount Detection Range (design goal at 20 kft AGL)  50 km open  19 km single canopy  11 km double canopy Revisit Time s Azimuth Accuracy (design goal) 0.5  Range Resolution6 m SAR Resolution5 x 6 m Scan Coverage ± 45  electronic ± 180  mechanical Transmit Power10 kW peak 1 kW average Prime Power5 kW Weight700 lbs 19 km single canopy 11 km double canopy 20 kft 17.5  30  Grazing angle limits FOPEN detection range UNCLASSIFIED//FOUO//EXPORT CONTROLLED DATA 2

22SEP2010 Mode Summary Mode CPI / Dwell Time (s) Transmit Beam (deg) Bandwidth (MHz) Description Dismount GMTI5725  Standard mode for dismounts under foliage  Typically 1-6 beams per scan Dismount GMTI, 4:1 Spoil  4x instantaneous azimuth coverage  6 dB less SNR (SCR about same) Tag GMTI5 sVarious  Adds 32 ms FSK data message to beginning and end of each dwell Vehicle GMTI  Optimized for higher speed targets  Higher update rate than dismount mode AMTI  Secondary mode to detect low flying aircraft  Designed for 100 km detection range SARN/A  Stripmap, 6 x 5 m resolution UNCLASSIFIED//FOUO//EXPORT CONTROLLED DATA 3

22SEP2010 System Block Diagram UNCLASSIFIED//FOUO//EXPORT CONTROLLED DATA 4

22SEP2010 Most of FORESTER electronics installed in A160 nose Data recorder mounted in rear belly area A160 Integration Signal ProcessorTransmitter Nose Fans A160 Nose UNCLASSIFIED//FOUO//EXPORT CONTROLLED DATA 5

22SEP2010 Rugged Data Recorders UNCLASSIFIED / FOUO / EXPORT CONTROLLED DATA 6 New rugged units for Country 1 flight testing RMMs can be removed and replaced via service panel on tail boom Install time for rugged unit about 5 min per assembly

22SEP2010 Antenna is 18-channel linear array Antenna is passive RF Positioner system to rotate ±180  mechanically Antenna 21 ft ParameterValue Frequency Range MHz Gain19 dBi Channels16 active + 2 dummy elements Beamwidth 7  azimuth, 60  el PolarizationHorizontal Scan Coverage ± 45  electronic ± 180  mechanical UNCLASSIFIED//FOUO//EXPORT CONTROLLED DATA 7

22SEP2010 Transmitter Solid-state, 16 channels 625 W peak per channel 5 – 100  s pulse width 200  s minimum PRI 10% maximum duty cycle Frequency hopping waveform with up to 8 subpulses Receiver 20 channels (16 main + 4 cal/aux) Dual conversion to 15 MHz final IF 5 MHz instantaneous bandwidth 14-bit A/Ds sampled at 20 MHz Transmitter / Receiver Frequency hopped waveform (normally use linear hop sequence) UNCLASSIFIED//FOUO//EXPORT CONTROLLED DATA 8

22SEP2010 Processor uses 10 Virtex-II Pro FPGA boards and 2 SBC Beamspace post-Doppler STAP for improved performance on the move Data Recorder interface to record and play back A/D data Signal Processor - Aircraft Pulse Compress & EQ Pulse Compress & EQ Motion Comp Motion Comp Beamform Doppler Conv Proc Conv Proc STAP/SAR Proc STAP/SAR Proc QNX SBC QNX SBC A/D Data STANAG 4607 GMTI Detections LN251 Nav Data Data Recorder SAR Mode SAR NITF UNCLASSIFIED//FOUO//EXPORT CONTROLLED DATA 9

22SEP2010 Two sets of RDMs will be produced for FOPEN-GXP using post- processing of recorded A/D data SRC radar emulation (conventional processing) MITLL processing model (adaptive clutter cancellation) Signal Processor – FOPEN-GXP Pulse Compress & EQ Pulse Compress & EQ Motion Comp Motion Comp Beamform Doppler Conv Proc Conv Proc Adaptive Proc Adaptive Proc QNX SBC QNX SBC A/D Data STANAG 4607 GMTI Detections LN251 Nav Data Data Recorder SAR Mode SAR NITF UNCLASSIFIED//FOUO//EXPORT CONTROLLED DATA 10 SRC Radar Emulation RDMs MITLL Clutter Cancelled RDMs (MIT LL Processing)

22SEP2010 BLOS datalink bandwidth: 4.75 Mbps downlink FORESTER budget: 1.5 Mbps Includes 1.3 Mbps budget for future RD chips or other data Assumes 750 kbps reduction from improved SRC software (in progress) A160 Datalink Bandwidth UNCLASSIFIED//FOUO//EXPORT CONTROLLED DATA  Max observed for dismount mode about 40 detections per second based on AP Hill and OCONUS flights  Assume 2.5X higher load for higher altitude and growth, so 100 per second GMTI Dismount Detection Load FORESTER Datalink Budget 11

22SEP2010 Portable terminal ground station shown from Ft. Stewart test Includes computers for radar control and real-time GMTI analysis Ground Station UNCLASSIFIED//FOUO//EXPORT CONTROLLED DATA 12 Rugged computers in transit cases Radar OPAnalysis A160 HUD Projector Radar OPMission and Ground Command

22SEP2010 C1 TOC Configuration UNCLASSIFIED / FOUO / EXPORT CONTROLLED DATA 13 Mission commander GMTI analysts FORESTER Operator Color printer Operations commander Projector / EOIR Operator NIPR Scene Right (not pictured): Test Director, Weather, J-2

22SEP2010 Next generation FORESTER Features Reduced weight More FPGA processing power Full 30 MHz instantaneous bandwidth Schedule Full system hardware ready Feb 2011 Ready for flight testing Dec 2011 FORESTER V2 UNCLASSIFIED//FOUO//EXPORT CONTROLLED DATA 14