The development of the vehicle sound source localization system

Recently many different kinds of sensors such as RADAR, LIDAR and camera have been widely developed by automotive OEMs and component suppliers. Most OEMs are using SRR for BSD(Blind Spot Detection) applications, however, its high cost prevents BSD from wider vehicle application. In this paper, a new alternative sensor system is proposed for BSD system. We proposed the method to detect the presence of moving vehicles and find their locations using Time Difference of Arrival (TDOA) between microphones. The vehicle sound source localization systems were implemented using the array of microphones. We improved the system accuracy based on the proposed localization algorithm. The system results were discussed that has equivalent performance with SRR systems.