Operating Principal Of The Fr5Cuec - Bosch FR5CUEC Quick Start Manual

Chassis Systems Control
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FR5CUEC User Manual ITA

3 Operating principal of the FR5CUEC

The radar sensor's main task is to detect objects and measure their speed and position relative
to the movement of the vehicle in which it is mounted.
To do this, the FR5CUEC senses targets by emitting many short frequency modulated waves
using the transmit antennas while receiving waves reflected by targets using the receive
antennas.
Distance and relative speed are determined via beat frequency (due to travelling time of the
waves) and phase differences between ramps (due to change of distance in short time). By
using the antenna diagramm the angles of departure and arrival of the radar waves can be
determined.
Using the Bosch chirp sequence radar modulation, the FR5CUEC allows unambiguous
determination of relative speed in a single measurement cycle. Therefore, no complex object
models are needed for ambiguity resolution.
The radar reflections (strength, distance and relative speed, angular direction, and derived
values) are basis for building a comprehensive model of the sensed environment.
Document Dept.
XC-DA/ESR1
Leonberg
20 December 2021
Page 5 of 15