Clustering method and device of vehicle radar scattering points

A clustering method, vehicle-mounted radar technology, applied in the field of data processing, can solve problems such as inaccurate clustering discrimination results

Active Publication Date: 2019-04-12
BEIJING JINGWEI HIRAIN TECH CO INC
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Problems solved by technology

[0005] The invention provides a clustering method and device for vehicle-mounted radar scattering points, which can solve the problem of clustering discrimination results due to the use of a fixed threshold value in the prior art for clustering discrimination using a European distance threshold and a Doppler velocity difference threshold. inaccurate question

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  • Clustering method and device of vehicle radar scattering points
  • Clustering method and device of vehicle radar scattering points
  • Clustering method and device of vehicle radar scattering points

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[0075] The following will clearly and completely describe the technical solutions in the embodiments of the present invention with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only some, not all, embodiments of the present invention. Based on the embodiments of the present invention, all other embodiments obtained by persons of ordinary skill in the art without making creative efforts belong to the protection scope of the present invention.

[0076]The invention provides a clustering method and device for vehicle-mounted radar scattering points, which can solve the problem of clustering discrimination results due to the use of a fixed threshold value in the prior art for clustering discrimination using a European distance threshold and a Doppler velocity difference threshold. Inaccurate question.

[0077] Such as figure 1 As shown, the embodiment of the present invention discloses a method for clu...

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Abstract

The invention discloses a clustering method and device of vehicle radar scattering points. Measurement parameters of a reference scattering point and a scattering point to be distinguished are obtained; according to the corresponding relationship between the obtained measurement parameters and a preset parameter threshold, threshold values of cluster discriminant thresholds are determined, whereinthe cluster discriminant thresholds at least comprise European range threshold TDs and and Doppler speed difference threshold TVs; and according to the obtained measurement parameters and the threshold values of the cluster discriminant thresholds, the reference scattering point and the scattering point to be distinguished are differentiated to obtain clustering results. According to the obtainedmeasurement parameters of the two scattering points, the threshold values most suitable for cluster discriminant thresholds of the two scattering points can be obtained by calculating, then cluster discrimination is conducted according to the obtained measurement parameters and the threshold values of the cluster discriminant thresholds, and therefore more accurate cluster discrimination resultscan be obtained.

Description

technical field [0001] The invention relates to the field of data processing, in particular to a clustering method and device for vehicle-mounted radar scattering points. Background technique [0002] Vehicle radar has become an irreplaceable sensor choice in the direction of target detection in the field of intelligent driving due to its good speed measurement ability for detecting targets and good penetration ability for rain and fog. Among them, when the vehicle-mounted radar is working on target detection, it is necessary to set a clustering discrimination threshold for all detected scattering points in the observation area for clustering discrimination, that is, two scattering points are considered to belong to the same target when they meet certain conditions. [0003] The current vehicle radar scatter point clustering method usually uses the Euclidean distance and Doppler velocity difference of two scatter points as the clustering discrimination threshold, that is, wh...

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01S7/41G01S13/93G06K9/62
CPCG01S7/41G01S13/931G06F18/23213
Inventor 刘长江毛聪张学健顾翔
Owner BEIJING JINGWEI HIRAIN TECH CO INC
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