Accelerated Doppler ProcessingДЄccelerated Doppler processing (ADP) accelerates simulation of long-, medium- and short-range pulse-Doppler and chirp-sequence frequency-modulated continuous-wave (FMCW) radars used in ADAS, autonomous vehicles and other near-field radar systems by more than 100x. The RadarPre and RadarPost ACT toolkits are delivered with the standard installation of the Ansys Electronics Desktop. The RadarPre and RadarPost toolkits simplify and speed the process of setting up these complex radar simulations and provide streamlined post-processing for graphically rich analysis results. Radar signatures involving time domain range profiles, inverse synthetic aperture radar (ISAR) plots and waterfall/sinograph plots yield insight into radar design and stealth. HFSS and HFSS SBR+ provide you with a powerful capability to model radar cross section (RCS) and time domain radar response for large targets like aircraft, automobiles and ships. Increased accuracy of modeling antenna-to-antenna coupling is another benefit of this capability.ДЄCT Extensions RadarPre and RadarPost for Radar Processing Delivered with HFSS The analysis contributes to a higher-fidelity characterization of the back radiation. However, for the back lobe or deep sidelobe regions shadowed from view by the curved host platform it is essential to use creeping wave physics to extend the ground-induced currents beyond line of sight across these smoothly curved surfaces. SBR is accurate for modeling radiation in regions directly lit by the antenna or indirectly through multi-bounce interactions. They are used to model radiation in shadowed regions for shooting and bouncing ray (SBR) simulations. It yields unprecedented accuracy for radar signature modeling of large targets.Д¬reeping waves are also used to model the installed antenna performance when integrated into curved surfaces found on aircraft fuselages, rockets and missile bodies, automobile bodies and ship topsides. Creeping wave physics is a ground-breaking addition to HFSS SBR+ to capture this important characteristic of radar scattering. In modeling electrically large targets, ray-tracing approaches like HFSS SBR+ must be employed to model the radar signature, but traditional ray-tracing approaches have no way to model the backside currents or their influence on target scattering. When a radar signal impinges on a rounded target, the currents induced on the object reach around the back and create delayed signal echoes. HFSS SBR+ also provides efficient radar signature modeling, including ISAR images of electrically large targets.Д¬reeping Wave Physics for RCS and Installed Antenna AnalysisДЄnsys HFSS SBR+ is the only commercial asymptotic field solver to offer creeping wave physics for both radar signature and installed antenna modeling.Д¬reeping waves provide an important component of radar scattering from objects with curvature. Transmissions and reflections can be modeled in large structures like vehicles, aircraft, radomes, etc. With the SBR+ solver, engineers can obtain fast and accurate prediction of far field installed antenna radiation patterns, near-field distributions and antenna-to-antenna coupling (S-parameters) on electrically medium, large and enormous platforms. SBR uses a ray tracing technique to model induced surface currents on the antenna platform or scattering geometry composed of conductors and dielectrics. SBR+ is the only commercial electromagnetic solver to empower Shooting & Bouncing Ray (SBR) technology with simultaneous and consistent implementations of Physical Theory of Diffraction (PTD), Uniform Theory of Diffraction (UTD), and Creeping Wave for simulating installed antenna performance on electrically large platforms that are hundreds or thousands of wavelengths in size.

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