RT Journal Article T1 Distance Measurement Error in Time-of-Flight Sensors Due to Shot Noise A1 Illade Quinteiro, Julio A1 Brea Sánchez, Víctor Manuel A1 López Martínez, Paula A1 Cabello Ferrer, Diego A1 Doménech Asensi, Ginés K1 Time-of-flight sensors K1 Shot noise K1 Standard CMOS technologies K1 Distance measurement AB Unlike other noise sources, which can be reduced or eliminated by different signal processing techniques, shot noise is an ever-present noise component in any imaging system. In this paper, we present an in-depth study of the impact of shot noise on time-of-flight sensors in terms of the error introduced in the distance estimation. The paper addresses the effect of parameters, such as the size of the photosensor, the background and signal power or the integration time, and the resulting design trade-offs. The study is demonstrated with different numerical examples, which show that, in general, the phase shift determination technique with two background measurements approach is the most suitable for pixel arrays of large resolution PB MDPI SN 1424-8220 YR 2015 FD 2015 LK http://hdl.handle.net/10347/17708 UL http://hdl.handle.net/10347/17708 LA eng NO Illade-Quinteiro, J.; Brea, V.M.; López, P.; Cabello, D.; Doménech-Asensi, G. Distance Measurement Error in Time-of-Flight Sensors Due to Shot Noise. Sensors 2015, 15, 4624-4642 NO This work has been partially funded by Spanish government Project TEC2012-38921-C02-02 MINECO(FEDER) and by the Xunta de Galicia with EM2013/038 and EM2014/012, AE CITIUS(CN2012/151, (FEDER)) and GPC2013/040 (FEDER) DS Minerva RD 28 abr 2026