Volvo has introduced a system called "City Safety" that reduces the chance of low-speed crashes in which the driver fails to brake in time, usually causing a rear-end collision.

At the low end, a ping flood can be used to uncover information covertly, but throttle up the packets being sent to a target or victim so that now, the system will go offline or suffer slowdowns.

Low noise, high linearity RF front end circuit is the key of the whole RF receiver system design.