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Conference Publication

Improved Modulation Techniques for Time-Of-Flight Ranging Cameras using Pseudo Random Binary Sequences

Host Publication: Finds and Results from the Swedish Cyprus Expedition: A Gender Perspective at the Medelhavsmuseet

Authors: R. Grootjans, W. van der Tempel, D. Van Nieuwenhove, C. De Tandt and M. Kuijk

Publication Date: Dec. 2006


Abstract:

A Current Assisted Photonic Demodulator (CAPD) correlates received modulated light with the original modulating signal and can be used as pixel in real-time 3D cameras. We show how the use of well-chosen Pseudo-Random Binary Sequences (PRBS) as modulating signals allows multiple 3D cameras to operate in the same area by reducing crosstalk and increases the maximal unambiguously measurable distance. Simulated results are compared to measurements performed on a CAPD-based circuit developed in our lab. The influence of parameters such as the length and base frequency of the PRBS on the measurements is also discussed.

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+32 (0)02 629 299

mkuijk@etrovub.be

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