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Near-Filtered Vehicle Radar

A vehicle-mounted radar and distance technology, applied to radio wave measurement systems, radio wave reflection/re-radiation, instruments, etc., can solve problems such as object detection errors, unforeseen detection distinctions, unimportant detections, etc.

Active Publication Date: 2021-09-14
VEONEER SWEDEN AB
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The detection and processing of stationary objects close to the vehicle due to reflections and multipaths caused by the vehicle itself and collected dirt and the like, internal coupling of signals within the radar system, is disadvantageous due to the fact that the composition of these objects is unimportant detection and lead to unnecessary data processing and may lead to false correlation with the real desired object detection
These unwanted detections are indistinguishable from the desired detections of close real objects

Method used

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  • Near-Filtered Vehicle Radar
  • Near-Filtered Vehicle Radar
  • Near-Filtered Vehicle Radar

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0037] figure 1 A top view of a vehicle 1 arranged to travel in direction D on a road 2 is schematically shown, wherein the vehicle 1 comprises an on-board radar system 3 configured to transmit signals 4a, 4b and The reflected signals 5a, 5b are received and by utilizing the Doppler effect, individual objects are distinguished and / or resolved from the surroundings. The on-board radar system 3 is configured to provide possible azimuths of the objects 25, 6 by simultaneously sampling and analyzing the phase and amplitude of the received signals 5a, 5b. Here, there is a relatively distant object 6 which may be moving and an approaching stationary object 25 . Approaching stationary objects 25 may be caused by reflections and multipaths caused by the vehicle 1 itself, as well as collected dirt and / or the like.

[0038] In addition, refer to figure 2 , the vehicular radar system 3 comprises a transceiver device 7 configured to generate and transmit scanning signals in the form o...

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Abstract

The present disclosure relates to an on-vehicle radar system (3, 3') comprising transceiver means (7, 7') configured to generate and transmit at least a first radar signal period (4a) and a subsequent Two radar signal periods (4b). For the first radar signal period (4a), the corresponding first received signal (5a) and corresponding first received signal information (20a, 28a) are obtained, and for the subsequent second radar signal period (4b), the corresponding A second received signal (5b) and corresponding second received signal information (20b, 28b). The onboard radar system (3, 3') is configured to calculate the difference between the first received signal information (20a, 28a) and the second received signal information (20b, 28b). The present disclosure also relates to a corresponding method.

Description

technical field [0001] The present disclosure relates to a vehicular radar system comprising a transceiver arrangement configured to generate and transmit at least a first radar signal period and a subsequent second radar signal period. For a first radar signal period, a corresponding first received signal and corresponding first received signal information are obtained, and for a second subsequent radar signal period, a corresponding second received signal and corresponding second received signal information are obtained. Background technique [0002] Many vehicular radar systems include a radar transceiver configured to generate radar signals, eg so-called chirp signals, which are transmitted, reflected and received by a suitable antenna included in the radar system. A chirp signal is an FMCW (Frequency Modulated Continuous Wave) signal with a certain amplitude, where the frequency ramps up continuously between two values, so the chirp signal takes the form of a continuous...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G01S7/35G01S13/34G01S13/538G01S13/931
CPCG01S13/34G01S13/538G01S13/931G01S7/356G01S7/352G01S2013/93185G01S13/342
Inventor 克里斯蒂安·施沃特迪尔克·克洛茨比歇尔
Owner VEONEER SWEDEN AB