General Product Description; Main Functions And Properties Of The Product; Principle - Bosch FR5CPCCF Manual

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Document date:
Installation and Manual Documentation
FR5CPCCF
CC-DA/ESR1
08 Aug 2019

1. General product description

The present technical customer documentation describes FR5CPCCF, for which the Robert
Bosch GmbH has the assigned responsibility. In addition, it contains noncommittal descriptions
of components and functionalities, which are not in the responsibility of Robert Bosch GmbH,
but nonetheless determine or influence the behavior and performance of the particular vehicle
type series.
1.1.

Main functions and properties of the product

1.1.1. Principle

The FR5CP radar sensor and control unit (SCU) contains a FMCW radar transceiver operating
in the globally harmonized frequency range of 76.0 - 77.0 GHz. It 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 diagram the angles of departure and
arrival of the radar waves can be determined.
Using the Bosch chirp sequence radar modulation, the FR5CP 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.
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