Vehicle Radar Target Angle Determination Using Segmented Resolution Algorithms

Solution Overview

Problem

Radar systems used in vehicle control face challenges in accurately determining target angles due to the trade-off between high-resolution algorithms, which provide accurate but computationally intensive calculations, and low-resolution algorithms, which reduce accuracy but decrease calculation load.

Innovation Solution

An apparatus and method that selectively apply high-resolution and low-resolution algorithms for target angle determination based on driving information, using a first angle determiner, driving route determiner, second group target determiner, and second angle determiner to efficiently calculate target angles by categorizing targets into groups based on their relevance to the vehicle's possible driving route.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Measurement precision

If a high-resolution algorithm is used for target angle analysis, then the accuracy of angle information is improved, but the calculation amount is increased

Engineering Contradiction:

Improvetarget angle accuracyVSAvoidcalculation amount

Core Design Contradiction:

Measurement precisionVSDevice complexity

Solution Approach 1:

The patent segments targets into two groups: first group targets (excluding those on the driving route) and second group targets (on the driving route). Different resolution algorithms are applied to different segments, reducing overall calculation while maintaining accuracy for critical targets.

Inventive Principle:

Principle #1Segmentation

Solution Approach 2:

The patent applies different quality levels of angle calculation to different spatial regions. High-resolution algorithms are applied locally to targets on the driving route where accuracy is critical, while low-resolution algorithms are used for other targets, optimizing the trade-off between accuracy and computation.

Inventive Principle:

Principle #3Local quality

2Device complexity

If a low-resolution algorithm is used for target angle analysis, then the calculation amount is reduced, but the accuracy of target angle is decreased

Engineering Contradiction:

Improvecalculation amountVSAvoidtarget angle accuracy

Core Design Contradiction:

Device complexityVSMeasurement precision

Solution Approach 1:

The patent segments targets into two groups: first group targets (excluding those on the driving route) and second group targets (on the driving route). Different resolution algorithms are applied to different segments, reducing overall calculation while maintaining accuracy for critical targets.

Inventive Principle:

Principle #1Segmentation

Solution Approach 2:

The patent applies different quality levels of angle calculation to different spatial regions. High-resolution algorithms are applied locally to targets on the driving route where accuracy is critical, while low-resolution algorithms are used for other targets, optimizing the trade-off between accuracy and computation.

Inventive Principle:

Principle #3Local quality

3Measurement precision

If high-resolution algorithms are applied to all targets, then the accuracy of all target angles is improved, but the system load is increased

Engineering Contradiction:

Improvetarget angle accuracyVSAvoidsystem load

Core Design Contradiction:

Measurement precisionVSUse of energy by moving object

Solution Approach 1:

The patent segments targets into two groups: first group targets (excluding those on the driving route) and second group targets (on the driving route). Different resolution algorithms are applied to different segments, reducing overall calculation while maintaining accuracy for critical targets.

Inventive Principle:

Principle #1Segmentation

Solution Approach 2:

The patent applies different quality levels of angle calculation to different spatial regions. High-resolution algorithms are applied locally to targets on the driving route where accuracy is critical, while low-resolution algorithms are used for other targets, optimizing the trade-off between accuracy and computation.

Inventive Principle:

Principle #3Local quality

Data Source

PatentUS10994780B2Apparatus and method for determining target angle based on radar, and radar apparatus with the same

Publication Date: 2021.05.04 HL KLEMOVE CORP

AI summary

The present disclosure relates to an apparatus and method for determining the angle of the target detected by the radar of the vehicle. The target angle determination apparatus may be configured to calculate a first angle of the first group target included in the radar data by using the first angle calculation algorithm with the low resolution, to determine a part of the first group target and the second group target based on the possible driving route of the host vehicle, and to calculate the second angle of the second angle target selected from the first group target by using the second angle calculation algorithm with the high resolution based on the possible driving route of the host vehicle, so that it is possible to minimize unnecessary calculation operations and reduce the system load.