Open AccessSystem theory of the integrating sphere as a model for the wireless optical indoor communication channel
Author(s) -
Schulze Henrik
Publication year - 2017
Publication title -
iet optoelectronics
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.379
H-Index - 42
eISSN - 1751-8776
pISSN - 1751-8768
DOI - 10.1049/iet-opt.2016.0091
Subject(s) - impulse response , integrating sphere , channel (broadcasting) , wireless , transfer function , fourier transform , expression (computer science) , inverse , range (aeronautics) , impulse (physics) , computer science , telecommunications , mathematical analysis , mathematics , electronic engineering , acoustics , topology (electrical circuits) , physics , optics , geometry , engineering , electrical engineering , classical mechanics , combinatorics , aerospace engineering , programming language
The integrating sphere is the base for a physical model of the wireless optical indoor communication channel. The author has found that the approximate expression for the channel transfer function for the integrating sphere used in that model can be replaced by an exact expression. A comparison shows that the approximation is valid for a wide range of interest, however there are some differences for high frequency values. For the impulse response (obtained by the inverse Fourier transform), the author observes significant deviations in the time region where first order reflections contribute significantly to the curve shape.