Distance measurement error in time-of-flight sensors due to shot noise

Journal ar
Sensors (Switzerland)
  • Volumen: 15
  • Número: 3
  • Fecha: 25 febrero 2015
  • Páginas: 4624-4642
  • ISSN: 14248220
  • Tipo de fuente: Revista
  • DOI: 10.3390/s150304624
  • Tipo de documento: Artículo
  • Editorial: MDPI AGPostfachBaselCH-4005
© 2015 by the authors; licensee MDPI, Basel, Switzerland.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.

Palabras clave del autor

    Palabras clave indexadas

      Detalles de financiación