OFDM radar sensor including multiple transmission channels and progressive computation of time signals

US12111417B2 · kind B2 · utility

Assignee

• Robert Bosch GmbH · DE

Inventors

• Daniel Schindler · Ludwigsburg, DE
• Robert Nabholz · Karlsruhe, DE
• Juergen Hasch · Stuttgart, DE

Key dates

• Filing date: Jun 4, 2020
• Grant date: Oct 8, 2024
• Expiry date: May 30, 2041

Classification

• Technology area (CPC G): Physics
• CPC primary: G01S13/584
• WIPO field: Measurement
• WIPO sector: Instruments

Abstract

An OFDM radar sensor including multiple transmission channels and at least one reception channel, and a method for operating such an OFDM radar sensor. At least for first transmission channels, the signal form of the signal to be transmitted, which includes a sequence of OFDM symbols in question, is progressively computed in portions for each transmission channel, and multiple buffer memories are used in alternation for storing a computed portion of the signal form and for reading out a previously computed and stored preceding portion of the signal form, which is converted from digital to analog and transmitted. A particular portion of the signal form is computed and stored in one of the buffer memories while a preceding portion of the signal form is being read out from another of the buffer memories and converted from digital to analog, and transmitted on the transmission channel in question.