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Coherent, multistatic radar system, in particular for use in vehicle

A radar system, radar technology, applied in the field of radar systems

Pending Publication Date: 2021-12-24
ROBERT BOSCH GMBH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The aim is to be able to determine at least the position of an object with the help of a radar system, but possibly also information about its speed and / or direction of movement

Method used

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  • Coherent, multistatic radar system, in particular for use in vehicle
  • Coherent, multistatic radar system, in particular for use in vehicle
  • Coherent, multistatic radar system, in particular for use in vehicle

Examples

Experimental program
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Embodiment Construction

[0059] figure 1 A vehicle 1 in the form of an automobile is shown with a radar system 3 according to an embodiment of the invention. Radar system 3 includes a radar sensor 5 , two active radar tags 7 and an evaluation device 9 .

[0060] In the example shown, radar sensor 5 is arranged in the front center of vehicle 1 , for example in the region of a bumper or skirt on the body of vehicle 1 . Two active radar tags 7 are respectively located on opposite sides of the same front part of the vehicle 1 . However, such an arrangement is merely exemplary. In principle, the radar sensor 5 and the active radar tag 7 can be arranged at different positions on the body of the vehicle 1 .

[0061] The radar sensor 5 is connected to a power source (not shown) and is designed to send and receive first radar signals. For this purpose, radar sensor 5 has a signal generator, at least one transmitting antenna and at least one receiving antenna. Preferably, the radar sensor 5 is equipped as ...

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PUM

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Abstract

The invention relates to a radar system (3), which can be used in particular in a vehicle. The radar system (3) has a radar sensor (5) for transmitting and receiving first radar signals (25) and an evaluation device (9) for processing radar signals (27, 33) received by the radar sensor (5). The radar system (3) is characterized in that it also has at least one active radar tag (7), which is configured to retransmit received radar signals (29), amplified and modulated, as second radar signals (31), and the evaluation device (9) is configured to determine information about an object (23) both on the basis of components (27), received by the radar sensor (5), of the first radar signals (25) reflected at the object (23) and on the basis of components (33), received by the radar sensor (5), of the second radar signals (31) reflected at the object (23).

Description

technical field [0001] The invention relates to a radar system which can be used in particular in vehicles. Background technique [0002] Radar systems are used to detect distant objects. The aim is to be able to determine with the aid of a radar system at least the position of the object, but possibly also information about its speed and / or direction of movement. For this purpose, radar systems use radar sensors to transmit radar signals in the form of electromagnetic waves and to detect the echoes of these radar signals, ie the components of the radar signal reflected back from objects. [0003] In particular, radar systems are used in modern vehicles for the automatic detection of objects such as other vehicles or obstacles, for example in order to support the driver of the vehicle with assistance systems, or even to control the vehicle autonomously based on the information obtained in this way. Contents of the invention [0004] Against this background, the method pr...

Claims

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Application Information

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IPC IPC(8): G01S13/58
CPCG01S13/58G01S13/003G01S13/931G01S13/74G01S13/87G01S13/878
Inventor 约翰内斯·施利臣迈尔本尼迪克特·梅内克克里斯蒂安·瓦尔德斯密特于尔根·哈施
Owner ROBERT BOSCH GMBH