Text

Analysis of Timing Errors in Time-of-Flight LiDAR Using APDs and SPADs Receivers

We analyze the ultimate timing error that can be achieved in the operation of a LiDAR based on the time-of-flight (ToF) measurement of distance using a pulsed light source and two possible detectors in the optic receiver: (i) an avalanche photodiode APD in linear mode, and (ii) a SPAD single photon detector. We analyze both the random and systematic contributions to the total error and find that the latter becomes dominant at large (>10 2 ) number of detected photons N ph . However, the systematic error can be cancelled by a separate measurement of N ph . As a conclusion, it is found that, aside from a multiplicative factor of the order of unity, all the schemes supply a timing error given by τ/√N ph , where τ is the characteristic time describing the illumination waveform. The theory we have developed provides a theoretical framework for the evaluation of the precision of time-of-flight measurement, and the results are applicable as a benchmark of the timing performance obtained by practical instruments.

Ketersediaan

Informasi Detail

Judul Seri

IEEE JOURNAL OF QUANTUM ELECTRONICS; Vol.57 No.1 February 2021

No. Panggil

-

Penerbit

: .,

Deskripsi Fisik

p. 7500108

Bahasa

English

ISBN/ISSN

-

Klasifikasi

-

Tipe Isi

-

Tipe Media

-

Tipe Pembawa

-

Edisi

-

Subjek

RANGEFINDERS
DISTANCE MEASUREMENTS
LIDARS

Info Detail Spesifik

DOI: 10.1109/JQE.2020.3043090

Pernyataan Tanggungjawab

Silvano Donati, Giuseppe Martini, Zingway Pei, Wood-Hi Cheng

Versi lain/terkait

Lampiran Berkas

Komentar