Channel model for tyre pressure monitoring systems (TPMS)

Tyre pressure monitoring systems rely on radio transmissions to transfer measurement data from the sensors to the vehicle body. These systems operate on a propagation channel which is time variant and introduces Doppler shifts due to vehicle movements. In the following paper we investigate these effects. First we propose, develop and characterise a channel model for TPMS, which is comprised of a deterministic and a stochastic component. In a second part channel simulations with an arbitrary vehicle model are presented to gain insight to the behaviour of TPMS channels. Finally an example out of a series of static channel measurements is shown.