Challenges and Solutions for Automotive OTA Testing

OTA (over-the-air) testing is essential for developing assisted and autonomous driving systems in vehicles, as it plays a crucial role in the localization, perception, and intelligent driving capabilities of ICVs (intelligent connected vehicles). Automotive antennas, typically much smaller in size than the vehicle itself and can be located in various positions, require spherical near-field measurement for OTA testing. While there are established standards for OTA testing methods and uncertainties for mobile devices, base stations, and satellite components, there are still many challenges in the OTA testing of automotive systems. These challenges, specifically in SISO (single input single output) and MIMO (multiple input multiple output) configurations, are discussed along with potential solutions in this article.