A vehicle body conformal antenna array arrangement method and system for road high-precision positioning

By using a conformal antenna array arrangement method on the vehicle body, the problems of low gain of omnidirectional antennas and multipath interference are solved, improving the ranging accuracy and adaptability of ultra-wideband wireless communication systems, and making them suitable for the field of automotive road positioning.

CN117767022BActive Publication Date: 2026-07-24HARBIN INST OF TECH
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Patent Information

Application Number
CN202311651627.9
Authority / Receiving Office
CN · China
Patent Type
Patents(China)
Current Assignee / Owner
Filing Date
2023-12-04
Publication Date
2026-07-24
Estimated Expiration
2043-12-04

AI Technical Summary

Technical Problem

Existing ultra-wideband wireless communication systems use omnidirectional antennas, which result in low gain in a specified direction and reception of multipath echo interference, affecting ranging accuracy.

Method used

A vehicle-mounted conformal antenna array arrangement method is adopted. By determining the radiation direction, gain performance and beamwidth of the antenna array, the array element distribution is obtained using sparse array and intrusion weed optimization algorithms, and then conformally assembled with the vehicle body.

Benefits of technology

It improves the accuracy of ranging, reduces multipath interference, enhances the system's orientation and adaptability, adapts to positioning needs in different scenarios, and maintains the harmony of the vehicle's appearance.

✦ Generated by Eureka AI based on patent content.
Patent Text Reader

Abstract

The application discloses a kind of vehicle body conformal antenna array arrangement method and system for road high-precision positioning, and relates to the field of radio communication.The existing ultra-wideband wireless communication system adopts omnidirectional antenna, which not only has low gain in the specified direction, but also receives echo interference of multipath due to its receiving characteristics, affecting the accuracy of distance measurement.The method comprises the following steps: determining the radiation direction of the antenna array directional diagram according to the required conformal vehicle body plane; determining the gain performance required by the array antenna to meet the effective positioning range according to the radar equation; constraining the beam width of the antenna array according to the minimum detection distance of the ultra-wideband signal and the width of the road; obtaining the element distribution of the sparse array antenna using the invasive weed optimization algorithm according to the radiation direction, gain performance and beam width; processing the antenna array according to the element distribution of the sparse array antenna, and conformally assembling with the vehicle body.The application is applied to the field of automobile road positioning.
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