Interference Characterization in FMCW radars

Abstract

As the penetration levels of Automotive radars increase so will the problem of mutual interference. It is important to understand how this will affect the performance of current radar technology. The aim of this paper is the statistical characterization of interference in the context of fast chirp FMCW radar. We focus on two categories of interference: `Parallel' and `Sweeping'. Through analysis and simulation we provide an insight into the mechanism of interference and also the inbuilt resilience of FMCW radars which help in interference mitigation. Monte Carlo simulations (of multiple radars at randomized distances) are used to provide a sense of radar performance in real-life scenarios. We discuss the performance difference between real and complex base-band FMCW architectures. For comparison we also present simulation results for .