RFView for MAK ONE
Real-time Ray Tracing Technology to Generate Synthetic Aperture Radar Images of MAK ONE Simulation Environments
Synthetic Aperture Radar (SAR) imaging has become an indispensable tool for today’s modern militaries. This creates a critical requirement for modeling and simulation engines and platforms to generate simulated SAR images that are both physically accurate and fully correlated with out-the-window views and EO/IR images of your virtual world.
RFView for MAK ONE serves SAR imagery on demand
It generates and delivers simulated SAR images of MAK ONE synthetic environments based on requests from client applications through an API or network interface.
The product uses real-time GPU-based ray tracing techniques to produce believable physics-based results, with the natural characteristics found in real SAR images, including Gibbs ringing effects, foreshortening and layover of tall objects, SAR shadows, smearing and displacement of moving objects, speckle, jammer/repeater artifacts, and important multi-bounce effects that can’t be achieved with other approaches.
Jointly developed by MAK and ISL
Our new partner, ISL, is an industry leader in radar and radio frequency simulation and analysis for over four decades. Our new integrated product uses ISL’s RFView radar simulation technology to generate SAR images based on terrain and entity geometry and material data provided at run-time by a dedicated instance of MAK’s VR-Vantage IG. This approach allows RFView to access terrain in any of the formats supported by MAK ONE (including direct-from-source streaming from VR-TheWorld Server, procedural terrain generation, cut-in FBX or OpenFlight insets, CDB databases, and dynamic terrain elements); and to access entity geometry (including articulated parts, embarkation, damage, and DI-Guy posture and animations) - provided by VR-Vantage based on DIS/HLA data received from VR-Forces or other federates.
Correlated views of the Synthetic Environment
The images on this page show correlated views of the Eiffel tower area in Paris (part of MAK’s VR-World Server global database): A VR-Vantage out-the-window, and two correlated SAR images generated from different altitudes by RFView for MAK ONE.
Key Features
Layover & Shadowing
Surfaces closer in range to the radar appear to “lay over” the ground in front of them.
Car appears in front of it's shadow
Relative Velocity Doppler Shift
Target reflection shifts in frequency due to relative velocity, but not its shadow
Receiver Noise
Low SNR scenario
Waveform Effects & Speckle
Both images have Constructive & Destructive Interference (i.e. Speckle Noise)
Ringing, i.e. sidelobes, Gibbs effect
Sidelobe Suppression (i.e. Taper Windows)
Windblown Doppler Shift
Windblown leaves induce random Doppler shift
Windblown leaves induce random Doppler shift
Antenna Patterns, Beamforming, Multichannel Support
Antenna Patterns with no tapering/sidelobe suppression
Antenna Patterns with Sidelobe Suppression
Phase History, Motion Effects, Range Walk
"Ideal" SAR ground map
With excessive motion or low Doppler resolution
Doppler Beam Sharpening with Range Walk & Quadratic Phase
RTX Path Tracing Multibounce & Flashing
1 Bounce
8 Bounces
1 Bounce
8 Bounces
With waveform and Doppler effects
