Verfahren und Vorrichtung zur Verarbeitung von Gemeinsamen Mehrfachen Chirp-Sequenzen
Anmelder: NXP B.V. 🇳🇱
Details
- Veröffentlichungs-Nr.
- EP4465073
- Aktenzeichen
- EP24171027
- Anmeldetag
- 18. April 2024
- Veröffentlichung
- 15. Oktober 2025
- Erteilung
- 15. Oktober 2025
- Rechtsraum
- EP
- IPC
- G01S7/02G01S7/35G01S13/42G01S13/931G01S13/58// G01S7/03
Abstract
A non-transitory computer-readable medium stores machine instructions that cause a processor to obtain a range-sample-antenna data cube for a received radar signal comprising reflections of a plurality of interleaved chirp sequences. The processor generates, for each chirp sequence, a Hankel matrix based on subset of range bins for the particular chirp sequence, and generates a block Hankel matrix based on the Hankel matrices for the plurality of interleaved chirp sequences. The processor performs truncated singular value decomposition to estimate subspaces, and object detection to identify selection matrices. The processor calculates least-squares approximations for the selection matrices and the block Hankel matrix to obtain, for each chirp sequence, a first phase shift matrix θ<sub>11</sub> and a second set of phase shift matrices θ<sub>1l</sub>, l = 2, ... , L. The processor performs joint diagonalization and Doppler division multiplexing compensation on θ<sub>11</sub> and θ<sub>1l</sub>, l = 2, ..., L, then resolves ambiguities in determined velocities based on comparison of θ<sub>11</sub> and θ<sub>1l</sub>, l = 2, ..., L.
Anmelder
- Firma
- NXP B.V.
- Land
- 🇳🇱 Niederlande
Niederländischer Halbleiterhersteller mit Sitz in Eindhoven. Entwickelt Chips und Halbleiterlösungen für Automobiltechnik, Kommunikation, Sicherheit sowie industrielle Anwendungen.
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