Simulation Techniques & Systems for EW Test & Evaluation Dr Bob Andrews EW SIMULATION TECHNOLOGY LTD & AOC International Region 1 Director 11/2013 1
Congratulations The Board of Directors of the AOC congratulate Dr Sultan and the Saudi Arabia Chapter for their assistance and support of this event. The Saudi Arabia Chapter is the fastest growing AOC Chapter 11/2013 2
OUTLINE EW T&E Requirements Historical Progress Scenarios for T&E Modelling requirements for realism DASS Testing Summary and Conclusions 11/2013 3
EW T&E Requirements Performance testing prove the specification Test the limits of performance How does the system degrade? Test the system functionality does it work properly? 11/2013 4
Early Radar Operation and Test Radar Receiver Test Facility - 1941 Radar Operator - 1941 11/2013 5
1950 s and 1960 s Dedicated Test Facilities Begin to Emerge 11/2013 6
1970 s Introduction of Simulators State of the Art 32-bits! 256k Memory! 5MB Winchester Hard Drive VAX 11/750 1hr processing for 1 sec scenario 11/2013 7
1980 s to Today 11/2013 8
Moore s Law Effect on T&E Processing Power Doubles Every 2 Years T&E Systems need to cope With EW system increase In performance 11/2013 9
Emitter Simulation is Key Essential requirement for T&E systems is accurate emitter simulation Emitters include radar and EO types Simulation must provide complete range of emitter parameters and be fully programmable 11/2013 10
Emitter Simulation Allows Full Parameter Programming Of Radar Signals 11/2013 11
Emitter Simulation Real Signal Simulation Visualisation Tools 11/2013 12
Antenna Pattern Simulation Antenna Pattern Viewer 11/2013 13
Simplest EW Simulator Allows the user to simulate a radar using a programmable signal generator Provides a test for does the system work? 11/2013 14
Simulators and Scenarios Scenarios enable controlled, realistic and repeatable EW T&E Scenarios enable EW T&E systems to simulate motion = added realism to test EW processing algorithms Motion can be simulated in two ways single plane (up/down range) full 3D (Az, El, Height, Roll, Pitch, Yaw) 11/2013 15
Up/Down Range Simulation EW T&E systems operating as a point source no angular information System provide correct and accurate range vs attenuation simulation Enables EW system dynamic range and sensitivity measurement and checks 11/2013 16
Up/Down Range T&E Systems Direct-connect T&E Radiating T&E 11/2013 17
Simulator Effects in RWRs 12 10 8 Range 6 4 2 0 T1 T2 T3 T4 11/2013 18
Simulator Effects in MAWS Missile Launch Profile UV Simulator 11/2013 19
Required T&E Realism Models 6 DOF space and full platform dynamic simulation modelling Propagation modelling radar range equation, over-the-horizon diffraction, atmospheric effects, multipath effects, scintillation, fading Fast scenario updates (<1 msec) for platforms, emitters and propagation effects 11/2013 20
Full EW Simulation Radar Threats EO/IR Threats 11/2013 21
Evolution of EW T&E Simulators Legacy standalone EW system testing Fully integrated DAS T&E 11/2013 22
Legacy EW Systems X RWR X MAW Radar ECM Chaff Flares Stand alone systems Separate displays and processing Only processed data available to other systems 11/2013 23
Legacy System Testing RWR RF Stim UV/IR Stim Target Gen Radar ECM Chaff MAW Flares Individual test sets Uncorrelated sensor stimuli Separate data analysis Considerable amount of testing carried out Laborious 11/2013 24
DAS Components Sensors Up to 40 GHz 3-5 and 8-11 micron I/J-Band RWR MAW LWR Radar DAS COMPUTER A/C Systems Data Bus ECM Chaff Flares DIRCM Effectors DASS computer processes raw data from the sensors to make its decisions 11/2013 25
DAS Primary Processing Functions Fuse sensor data to enhance target recognition effectiveness Correlate sensor data to enable high accuracy targeting Provide coordinated countermeasures to maximise platform survivability Sensor integrated testing is essential in order to verify these functions 11/2013 26
Requirements for Multi-Sensor Testing Provide coherent stimuli to all sensors Provide stimuli at the same time Generate stimuli from a common scenario = tactical engagement modelling Repeatable scenarios Multi-spectral ( DC to Light ) 11/2013 27
Requirements for Multi-Sensor Testing One integrated software scenario generator All types of emitters radar, electrooptic = multi-spectral Fast updates, highly realistic emitter generation, fully represented propagation modelling 11/2013 28
Evolution of Integrated Test System Common Control Scenario generation Emitters Platforms IR Profiles IR signatures UV launch profiles Laser Designator profiles Target RCS JEM Lines Chaff models THREAT STIMULATOR IR/UV STIMULATOR LASER STIMULATOR DRFM RADAR TARGET GENERATOR Control Control Control RWR MAW LWR RADAR 11/2013 29
Integrated System Testing Requirements To/from data analysis systems RF Stim RWR IR Stim MAW Central Control Computer Common Scenario Generation Control of All Stimulators Linked to Data Analysis Systems Laser Stim Target Gen LWR Radar 11/2013 30
Integrated Up/Down Range T&E UV RF IR MULTI-SPECTRAL 11/2013 31
Integrated 6 DOF T&E System Realistic Multi-Spectral EW Theatre scenario with moving platforms/emitters Receive Antenna Models EW Simulator Emitter Activity Script Realistic EW Environment RWR/ MAW Receiver Hardware Display or Other Systems Nav Data 11/2013 32
Integrated 6 DOF T&E 11/2013 33
Challenges The Way Forward T&E systems performance needs to be better than EW systems Digital receiver technology demands better noise floors T&E simulation systems are expensive 11/2013 34
Solutions The Way Forward COTS products will reduce over costs Arbitrary waveform generators can provide better signal generation FPGAs can provide advanced signal simulation and fast processing Photonics technology can enable wider bandwidths 11/2013 35
Summary and Conclusions Simulation is essential part of EW T&E T&E systems are required at development, production, acceptance and in-service stages Simulation techniques provide highly realistic scenarios for T&E systems Integrated DAS testing relies heavily on accurate multi-spectral simulation T&E systems T&E must always be at least as good as the system it tests 11/2013 36
Questions??? 11/2013 37