Short range radar - Being on the market

In 2005 in addition to forward looking long-range radar (LRR) used mainly for autonomous cruise control (ACC) short range radar (SRR) sensors with a coverage up to 30 meters have been introduced in the new Mercedes S-class enabling a variety of further driver assistance and safety applications today. SRR is used to expand ACC to stop-and-go operation, to perform pre-crash warning, to act as parking aid, to warn during backing up or changing lanes, or even for emergency braking. This contribution describes SRR specifications, design and packaging considerations, and the status of the worldwide frequency regulation situation.