---
title: "Auto-Radar Drive Scenario Simulation: Increasing Realism with Multipath, Diffuse Scattering, and Micro-Doppler | Remcom"
description: Learn how WaveFarer® Radar Simulation Software uses ray-tracing to simulate virtual drive scenarios and predict radar returns as a system moves through an environment with vehicles, roadway structures, pedestrians, and other objects.
---

[Electromagnetic Simulation Resources | Remcom ](https://www.remcom.com/resources)

# [Auto-Radar Drive Scenario Simulation: Increasing Realism with Multipath, Diffuse Scattering, and Micro-Doppler | Remcom](https://www.remcom.com/resources/articles-and-papers/auto-radar-drive-scenario-simulation-increasing-realism-with-multipath-diffuse-scattering-and-micro-doppler)

 Written by [Kaitlyn Brickley](https://www.remcom.com/resources/author/kaitlyn-brickleyremcom-com) | May 18, 2022 4:50:59 PM

Learn how Remcom’s [WaveFarer® Radar Simulation Software](https://www.remcom.com/wavefarer-radar-sensing-simulation-software) uses ray-tracing to simulate virtual drive scenarios and predict radar returns as a system moves through an environment with vehicles, roadway structures, pedestrians, and other objects.

Drive scenario simulation can offer significant benefits for early testing of sensor designs and as a complement to operational road tests. However, focusing on mmWave radar sensors, there are several challenges to simulation of a realistic automotive scenario:

- [Near-field](https://www.remcom.com/wavefarer-radar-sensing-simulation-software/near-field-propagation-method) conditions that invalidate traditional RCS concepts
- Densely-faceted vehicle models; complex for traditional “propagation” ray-tracers
- Complex multipath from roadside structures (guard rails, signs, parked vehicles, etc.)
- [Dynamic scenarios](https://www.remcom.com/wavefarer-radar-sensing-simulation-software/dynamic-scenario-modeling) with multiple vehicles in motion, potentially with moving parts

This presentation uses WaveFarer to describe these challenges, possible solutions, and recent R&D to address key aspects of the problem, including target scattering, multipath and clutter, and micro-Doppler from motion such as the moving limbs of a walking pedestrian.

PO Scatter and UTD interactions only

Pedestrian crossing as radar host vehicle approaches.

With Diffuse Scatter

Dominant paths show interactions with vehicle, pedestrian, and stop signs.

[View full post](https://www.remcom.com/resources/articles-and-papers/auto-radar-drive-scenario-simulation-increasing-realism-with-multipath-diffuse-scattering-and-micro-doppler)

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