Inter-radar interference analysis of FMCW radars with different chirp rates

Abstract

Millimetre-wave frequency-modulated continuous wave (FMCW) radar is expected to be widely deployed for advanced driver assistance systems (ADAS) and self-driving cars. Considering that automotive radars will be deployed in a huge number of cars in future, inter-radar interference will be a significant problem since inter-radar interference can cause miss-detection and/or false detection of the target. As millimetre-wave automotive radar is not standardised at this moment, it is required to evaluate inter-radar interference among FMCW radars with various chirp-rates and chirp durations. This study describes inter-radar interference analysis in FMCW radars with different chirp rates and simulation results of inter-radar interference to confirm the validity of the interference analysis.

Keywords

• CW radar
• object detection
• road vehicle radar
• driver information systems
• radar interference
• FM radar
• different chirp rates
• inter-radar interference analysis
• FMCW radars
• millimetre-wave frequency-modulated continuous wave radar
• automotive radars
• millimetre-wave automotive radar