Patent · US Active

Method for the phase calibration of high-frequency components of a radar sensor

US11500061B2 · kind B2 · utility

1Cited by

0References

17Claims

0Family size

Assignee

Robert Bosch GmbH · DE

Inventors

Benedikt Loesch · Stuttgart, DE
Klaus Baur · Mietingen, DE
Marcel Mayer · Stuttgart, DE
Michael Schoor · Stuttgart, DE

Key dates

Filing date	Mar 7, 2019
Grant date	Nov 15, 2022
Priority date	—
Expiry date	Dec 11, 2039

Classification

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

Abstract

A method for calibrating two receiving units of a radar sensor that includes an array of receiving antennas formed by two sub-arrays and an evaluation unit, which is designed to carry out an angle estimation for located radar targets based on phase differences between the signals received by the receiving antennas, each receiving unit including parallel reception paths for the signals of the receiving antennas of one of the sub-arrays. The method includes: analyzing the received signals and deciding whether a multi-target scenario or a single-target scenario is present, in the case of a single-target scenario, measuring phases of the signals received in the sub-arrays and calculating a phase offset between the two sub-arrays, and calibrating the phases in the two receiving units based on the calculated offset.

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