A Graphical Heatmap Tool to Analyse the Effects of Interference in Automotive Radar

A unique graphical tool is presented in this paper that shows the severity of effects, in terms of signal to interference ratio, when receiving interference from various FMCW radars into one FMCW victim radar. The Heatmap tool is of importance as wide range of automotive radars are currently operating and more will be introduced in the future with plethora of new parameters. Understanding the effects on the functionality of the automotive radars in the presence of interference is crucial to aid development of mitigation strategies. The universal Heatmap tool can also be used to estimate the level of signal to interference ratio for any victim and interferer radars pair and road scenarios. The estimated signal to interference ratio value calculated by the described technique is compared and validated with simulation results and backed by laboratory experimental measurement results.