Title:
DATA CALIBRATION METHOD AND APPARATUS FOR MULTIPLE MILLIMETER-WAVE RADARS
Document Type and Number:
WIPO Patent Application WO/2023/087522
Kind Code:
A1
Abstract:
A data calibration method and apparatus for multiple millimeter-wave radars. The method comprises: acquiring detection data of a laser radar and multiple millimeter-wave radars, wherein the multiple millimeter-wave radars are mounted at different angles on the same device (S101); according to the acquired data, obtaining, by using a point cloud matching method, a first affine matrix between the laser radar and one millimeter-wave radar, and a second affine matrix between the laser radar and another millimeter-wave radar (S102); according to the first affine matrix and the second affine matrix, obtaining a third affine matrix between the millimeter-wave radar and the other millimeter-wave radar (S103); and according to the third affine matrix, fusing the data detected by the millimeter-wave radar with the data detected by the other millimeter-wave radar (S104).
Inventors:
HUANG CHAO (CN)
ZHANG HAO (CN)
ZHANG HAO (CN)
Application Number:
PCT/CN2022/071112
Publication Date:
May 25, 2023
Filing Date:
January 10, 2022
Export Citation:
Assignee:
SHANGHAI XIANTU INTELLIGENT TECH CO LTD (CN)
International Classes:
G01S7/40; G01S13/86
Domestic Patent References:
| WO2018159902A1 | 2018-09-07 |
Foreign References:
| CN111077506A | 2020-04-28 | |||
| CN109581338A | 2019-04-05 | |||
| CN110579764A | 2019-12-17 | |||
| CN109975773A | 2019-07-05 | |||
| CN112684432A | 2021-04-20 |
Attorney, Agent or Firm:
BEIJING BESTIPR INTELLECTUAL PROPERTY LAW CORPORATION (CN)
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