Patent · US Active

Radar-based detection using angle of arrival estimation based on sparse array processing

US11927664B2 · kind B2 · utility

0Cited by

22References

19Claims

0Family size

Assignee

NXP B.V. · NL

Inventors

Ryan Haoyun Wu · San Jose, US
Jun Li · Brooklyn, US
Maik Brett · Schweinhub, DE
Michael Andreas Staudenmaier · Munich, DE

Key dates

Filing date	Feb 25, 2021
Grant date	Mar 12, 2024
Priority date	—
Expiry date	Sep 27, 2042

Classification

Technology area (CPC G)Physics
CPC primaryG01S2013/0245
WIPO fieldMeasurement
WIPO sectorInstruments

Abstract

In one example, a radar circuit uses computer processing circuitry for processing data corresponding to reflection signals via a sparse array. Output data indicative of signal magnitude associated with the reflection signals is generated, and then angle-of-arrival information is discerned therefrom by (e.g., iteratively): correlating the output data with at least one spatial frequency support vector indicative of a correlation peak for the output data; generating upper-side and lower-side support vectors which are neighbors along the spatial frequency spectrum for said at least one spatial frequency support vector, and providing, via a correlation of the upper-side and lower-side support vectors and said at least one spatial frequency support vector, at least one new vector that is more refined along the spatial frequency spectrum for said at least one spatial frequency support vector.

Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.