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AWR1642: Radar detects vehicles on the sides despite Region of Interest being 1 m on both the sides from the center

Part Number: AWR1642

Hi all,

Recently we have been using the mmwave radar with our development vehicle and found an issue. We have set the Region of Interest of our radar as 1m on both the sides from the center because our objective is currently ACC on straight lane roads . However, when we are driving on narrow roads where the traffic on other sides is very close despite the incoming vehicles being away from the ROI we get the points for them plotted in the center on the ROI. What might be causing it to do this ? 

I am attaching images below to give a more clear understanding of the issue. 

This is the situation where we have cars coming from the opposite side inside our ROI