Real-time radar simulator for self-driving cars from OTSL
OTSL Inc. announced its Advanced Millimeter Wave Radar (AMMWR) Simulator at the SystemC AMS & COSIDE User Group Meeting held in Munich, Germany, and hosted by COSEDA Technologies GmbH. The AMMWR Simulator is claimed to be the world's first sensor simulator software for autonomous driving that enables dynamic real-time simulation.
"The AMMWR Simulator uses a virtual 3D image of a millimeter-wave radar and visualizes in real time the calculated values of radiation range, angle, distance, reflection intensity, relative speed to the object, etc.," said Shoji Hatano, CEO, OTSL. "This simulator drives a vehicle with a millimeter-wave radar in virtual space and moves virtual models, such as the target vehicle to be tracked, oncoming vehicles, or pedestrians, to enable simulation of a closer-to-reality driving situation."
OTSL says the AMMWR Simulator allows the user to set the details of the size, shape, and material of models such as the target vehicle, pedestrians, and traffic signals and signs. For example, the AMMWR Simulator can reportedly simulate individual components of a vehicle such as the front glass or headlights. According to the company this system simulates the transmission and reception behavior of millimeter waves transmitted from sensors to detect an object and reproduces a measured distance with high accuracy. The user is able to set characteristics such as those of radiation power, area, and frequency of a millimeter-wave radar to enable simulation of millimeter-wave radar products from various manufacturers and prototyped millimeter-wave radar products. In addition, the influence of changing weather conditions such as rain and fog on the characteristics of a millimeter-wave radar can also be set. The view of the visualized 3D image can be changed to allow simulation from various views, such as a view from the driver's seat, a bird's eye view, or a back view.
"In order to realize autonomous driving, millimeter wave radars, laser radars, image sensors, and ultrasonic sensors are indispensable. It is required to confirm that the developed sensors can operate properly under various situations," said Akira Matsuzawa, Professor, Chair of Electrical and Electronic Engineering, Tokyo Institute of Technology. "This real-time radar simulator uses a ray-tracing method that has been used in the optical field and applies it to millimeter waves. It takes into consideration the substance and shape of the subject, and multiple reflections. It realizes a precise simulation being closer to reality."
According to OTSL, this simulator enables automotive manufacturers to simulate a driving situation by sensor-based modeling, check the recognition and control of autonomous driving, and verify the sensor-mounting positions on vehicles efficiently, which eliminates the need for test driving with real vehicles. Vehicle sensor suppliers can reportedly visualize the behavior of vehicle sensors, review the design parameters of millimeter-wave modules, and check the reaching distance and sensing area with higher efficiency. Semiconductor manufacturers developing sensor devices can model and simulate a device under development and verify it at high speed.
For more information, go to the OTSL website at https://www.otsl.jp/english/product/cosmos/index.html.