Proposal of multiple access FMCW radar for inter-radar interference avoidance

Abstract

Inter-radar interference will be a crucial problem when a number of frequency modulated continuous wave (FMCW) radars are densely deployed in future, since it can cause miss detection and false detection of the target due to wideband interference and narrowband interference. One of the approaches to solve this problem is to introduce a multiple access technique for automotive radars, e.g. carrier sense multiple access used in wireless LAN to avoid packet collision. This study proposes multiple access FMCW radar which can avoid both narrow-band and wideband interference assuming all of the FMCW radars have the same design parameters. It also, proposes a carrier sense technique as a key technique for multiple access FMCW radar and evaluates the carrier sense performance by computer simulations.

Keywords

• interference suppression
• cw radar
• radar interference
• road vehicle radar
• carrier sense multiple access
• radar tracking
• fm radar
• radar detection
• computer simulations
• carrier sense performance evaluation
• design parameters
• packet collision avoidance
• false detection
• miss detection
• interradar interference avoidance
• frequency modulated continuous wave radars
• carrier sense multiple access
• automotive radars
• narrowband interference
• wideband interference
• multiple access fmcw radar