Radar system and method for performing direction of arrival estimation in a radar system

US12153125B2 · kind B2 · utility

Assignee

• Infineon Technologies AG · DE

Inventors

• Simon Achatz · Munich, DE
• Maximilian Eschbaumer · Munich, DE

Key dates

• Filing date: Apr 27, 2022
• Grant date: Nov 26, 2024
• Expiry date: May 27, 2043

Classification

• Technology area (CPC G): Physics
• CPC primary: G01S2013/9319
• WIPO field: Measurement
• WIPO sector: Instruments

Abstract

According to various embodiments, a radar system is described including a direction of arrival pre-processor configured to, for a detected peak, obtain a Doppler Fourier transform result vector, generate a spatial covariance matrix for the Doppler Fourier transform result vector, and generate an additional spatial covariance matrix by inputting the spatial covariance matrix to a machine learning model trained to predict, from an input spatial covariance matrix, an output spatial covariance matrix such that the output spatial covariance matrix corresponds to a different chirp center frequency than the input covariance spatial covariance matrix and including a direction of arrival estimator configured to perform direction-of-arrival estimation using the additional spatial covariance matrix.