US 12,650,505 B2 · Multi-frequency radar array systems and sensor fusion for seeing around corners in autonomous driving

Abstract

Disclosed herein are systems, devices, and methods that may be used for autonomous driving and/or in autonomous vehicles. Some embodiments use an integrated wide-aperture multi-band radar subsystem and leverage the unique propagation properties of multiple bands and/or multiple sensor technologies to significantly improve detection and understanding of the scenery and, in particular, to see around corners to identify non-line-of-sight targets. In some embodiments, at least one processor of the system is capable of jointly processing return (reflected) signals in multiple bands to provide high accuracy in a variety of conditions (e.g., weather). The disclosed radar subsystem can be used alone or in conjunction with another sensing technology, such as, for example, LiDAR and/or cameras.

Claims23

Dependent claims

A method of identifying positions of targets in a scene, the method comprising:

transmitting a plurality of scanning signals;
collecting a plurality of reflected signals;
determining a respective classification for each signal of at least a subset of the plurality of reflected signals, wherein at least one signal of the subset is classified as a through-building return;
and
based at least in part on (a) the at least the subset of the plurality of reflected signals, and (b) the respective classification for each signal of the at least the subset of the plurality of reflected signals, determining a projected position of a target in the scene.

2 more elements

Dependencies are inferred from the claim text.

Facts

Application

18/160,633Filed 27 Jan 2023 · continuation

Priority

29 Jul 2020

Published

US 2023/0168359 A11 Jun 2023

Granted

9 Jun 2026

Term ends

Not estimatedThe source records don’t support an estimate.

Classification6 codes

G01S 13/46
Systems determining position data of a target: indirect determination of position data
G01S 13/003
Systems using the reflection or reradiation of radio waves, e.g. radar systems; Analogous systems using reflection or reradiation of waves whose…:…
G01S 13/865
Combinations of radar systems with non-radar systems, e.g. sonar, direction finder: combination of radar systems with lidar systems
G01S 13/931
For anti-collision purposes: of land vehicles

Family

Application63/058,471Us provisional application · filed 29 Jul 2020

Application63/092,336Us provisional application · filed 15 Oct 2020

PCT/US2021/043498Parent of this continuation · filed 28 Jul 2021

US 2023/0168359 A1Pre-grant publication · published 1 Jun 2023

US 12,650,505 B2This patent

From the US filing history. Foreign family members aren’t listed.

Multi-frequency radar array systems and sensor fusion for seeing around corners in autonomous driving

Life of this patent

Multi-frequency radar array systems and sensor fusion for seeing around corners in autonomous driving

Life of this patent

Abstract

Claims23