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CC-DA/ESR1
Closed surfaces of brackets and masks made of metal or high reflecting material need a tilt
angle being arranged that the reflection is not received by the receiving antennas of the sensor.
Figure: Reflection at bracket or mask
For closed surfaces (masks) in azimuth, the angle between mask surface and the normal
vector n of the sensor shall be above 75° for parts outside of the radar cone.
For closed surfaces (masks) in elevation, the angle between mask surface and the normal
vector n of the sensor shall be above 20° for parts outside of the radar cone.
Multipath reflection
Reflections of incoming signals at bracket or shielding absorber are coming back to the sensor if
reflection at the bumper occurs. The figure below shows the situation which should be avoided.
The worst case happens if the combination of the vertical tilt angles of shielding and bumper is
=
/ 2 . For a low interference signal the condition shall be:
1
2
>
/ 2 +10°
1
2
or
<
/ 2 -10°
1
2
© All rights reserved, Robert Bosch GmbH, also for the case of protected rights applications every power of disposal, like copy-right
and passing on rights, with us. The valid issue of this template is filed in CC-DA process landscape.
Installation and Manual Documentation
FR5CPCCF
Document date:
08 Aug 2019
Page:
18
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