Verfahren zur Kalibrierung eines Flugzeitsystems sowie Flugzeitsystem

Details

Veröffentlichungs-Nr.

EP3460509

Aktenzeichen

EP17198595

Anmeldetag

26. Oktober 2017

Veröffentlichung

11. Dezember 2024

Erteilung

11. Dezember 2024

Rechtsraum

EP

IPC

G01S7/497G01S7/487G01S7/481

Abstract

A method is presented for calibrating a time-of-flight system having a time-of-flight sensor located behind a cover plate (CP). The method involves emitting a plurality of sending pulses (EP) of light in response to respective trigger pulses of a control signal (CS1) and detecting received pulses of light (RP, RP'). Respective difference values are determined which are representative of a time period between one of the sending pulses (EP) and one of the received pulses (RP, RP'). The difference values are accumulated into a number of bins (1, ..., N) of at least one histogram. The method further involves recording at least one crosstalk response (CTP) in the histogram within a predetermined range of bins (1, ..., M), and calibrating the histogram using the recorded crosstalk response (CTP). Finally, an output signal (OS) is generated which is indicative of a time-of-flight based on an evaluation of the calibrated histogram.

Anmelder

Firma

ams AG

Land

🇦🇹 Österreich

Fachgebiete