User's Manual
Table Of Contents
Chassis Systems Control
From
Our Reference
XC-DA/ESR1
Robert Binder
FR5TPCC User Manual
Issue
2.0
for Radio International Type Approval
01-December-2021
Page 14 of 16
Reflection from outside the radar cone
Reflections from structures located outside the radar cone have to be avoided.
Furthermore interference signals picked up by the sensor antennas should be avoided by
keeping a minimum distance (d) of 5 mm to 10 mm for parts in front of the sensor.
Even with compliance to the radar cone, reflections at parts outside the radar cone may disturb
the received signal. Reflections at parts causing an interference signal to the receiving antenna
and reflections at parts getting to the receiving antenna after a second reflection at the fascia
(multipath reflection).
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 6: Reflection at bracket or mask
For closed surfaces (masks) in azimuth, the angle γ between mask surface and the normal
vector n of the sensor shall be greater than the azimuth opening angle of the keep-out zone.
For closed surfaces (masks) in elevation, the angle γ between mask surface and the normal
vector n of the sensor shall be greater than the azimuth opening angle of the keep-out zone.