Method for operating a radar sensor in a motor vehicle
US-2021405184-A1 · Dec 30, 2021 · US
Automotive synthetic aperture radar with radon transform
US11719810B2 · US · B2
| Field | Value |
|---|---|
| Publication number | US-11719810-B2 |
| Application number | US-202117208065-A |
| Country | US |
| Kind code | B2 |
| Filing date | Mar 22, 2021 |
| Priority date | Mar 22, 2021 |
| Publication date | Aug 8, 2023 |
| Grant date | Aug 8, 2023 |
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Abstract
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A method for using Synthetic Aperture Radar (SAR) to perform a maneuver in a land vehicle is provided. The method includes: receiving digitized radar return data from a radar transmission from a SAR onboard the vehicle; accumulating a plurality of frames of the digitized radar return data; applying a RADON transform to the accumulated plurality of frames of the digitized radar return data and odometry data from the vehicle to generate transformed frames of data for each three-dimensional point, wherein the RADON transform is configured to perform coherent integration for each three-dimensional point, project a radar trajectory onto each three-dimensional point, and project Doppler information onto each three-dimensional point; generating a two-dimensional map of an area covered by the radar transmission from the SAR based on the transformed frames of data for each three-dimensional point; and performing a maneuver with the land vehicle by applying the generated two-dimensional map.
First claim
Opening claim text (preview).
What is claimed is: 1. A method for using Synthetic Aperture Radar (SAR) to perform a maneuver in a land vehicle, the method comprising: receiving digitized radar return data from a pulsed radar transmission from a Synthetic Aperture Radar (SAR) onboard a land vehicle; accumulating a plurality of frames of the digitized radar return data; applying a RADON transform to the accumulated plurality of frames of the digitized radar return data and odometry data from the land vehicle to generate transformed frames of data for each three-dimensional point, wherein the RADON transform is configured to perform coherent integration for each three-dimensional point for which a radar return exists from the pulsed radar transmission, project a radar trajectory onto each three-dimensional point, and project Doppler information onto each three-dimensional point; generating a two-dimensional X-Y map of an area covered by the pulsed radar transmission from the SAR based on the transformed frames of data for each three-dimensional point; and performing an autonomous or semiautonomous maneuver with the land vehicle by applying the generated two-dimensional X-Y map. 2. The method of claim 1 , wherein the RADON transform comprises a range dimension, a Doppler dimension, and a phase dimension. 3. The method of claim 2 , wherein the RADON transform is represented by: S ( x , y , z ) = ∑ f = 0 F - 1 ∑ v = 0 V - 1 ∑ h = 0 H - 1 ∑ m = 0 M - 1 ∑ n = 0 N - 1 s ( n , m , h , f ) e - 2 π j R ( m , f , x , y , z ) n N e - 2 π j D ( m , f , x , y , z ) m M e - 2 π j P ( m , h , v , f , x , y , z )
Assignees
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Inverse problem, i.e. transformations from projection space into object space · CPC title
- G01S13/904Primary
SAR modes · CPC title
specially adapted for moving target detection within a single SAR image or within multiple SAR images taken at the same time · CPC title
Theoretical aspects · CPC title
of land vehicles · CPC title
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- What does patent US11719810B2 cover?
- A method for using Synthetic Aperture Radar (SAR) to perform a maneuver in a land vehicle is provided. The method includes: receiving digitized radar return data from a radar transmission from a SAR onboard the vehicle; accumulating a plurality of frames of the digitized radar return data; applying a RADON transform to the accumulated plurality of frames of the digitized radar return data and o…
- Who is the assignee on this patent?
- Gm Global Tech Operations Llc
- What technology area does this patent fall under?
- Primary CPC classification G01S13/904. Mapped technology areas include Physics.
- When was this patent published?
- Publication date Tue Aug 08 2023 00:00:00 GMT+0000 (Coordinated Universal Time) (B2). Legal status and post-grant events are not shown on this page.
- What related patents are in patentsdb?
- We list 6 related publications on this page (citations in our corpus or others sharing the same primary CPC).