Sa radar sensor for motor vehicles

US12282088B2 · kind B2 · utility

Assignee

• Robert Bosch GmbH · DE

Inventors

• Gor Hakobyan · Stuttgart, DE
• Johannes Fink · Bergheim, DE

Key dates

• Filing date: Jun 21, 2022
• Grant date: Apr 22, 2025
• Expiry date: Jul 27, 2043

Classification

• Technology area (CPC G): Physics
• CPC primary: G01S13/931
• WIPO field: Measurement
• WIPO sector: Instruments

Abstract

Radar sensor for motor vehicles. The radar sensor has a high-frequency part, which is configured to transmit sequences of modulated radar pulses and to receive the corresponding radar echoes, and an electronic evaluation part, which is configured to take distance and angle measurements using a synthetic aperture, and includes a scanning module, an FFT module for performing fast Fourier transforms to calculating a two-dimensional distance/velocity radar image, a transform module configured to transform the raw data, while simultaneously correcting migration effects, into a format that can be processed by the FFT module, by applying a transform function defined by a number N of coefficients, and a coefficient module for preparing the coefficients for the transform module. The coefficient module including a memory, in which there is stored an initial set of coefficients comprising fewer than N coefficients, and a recursion module, for recursive calculation of the remaining coefficients.