Open AccessDesign of Spreading-Codes-Assisted Active Imaging System
Author(s) -
Alexey Volkov,
Jerneja Žganec Gros,
Mario Žganec,
Tomaž Javornik,
Aleš Švigelj
Publication year - 2015
Publication title -
international journal of advanced robotic systems
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.394
H-Index - 46
eISSN - 1729-8814
pISSN - 1729-8806
DOI - 10.5772/60686
Subject(s) - computer science , robustness (evolution) , automotive industry , interference (communication) , modulation (music) , cmos , real time computing , electronic engineering , embedded system , telecommunications , channel (broadcasting) , biochemistry , chemistry , philosophy , engineering , gene , aerospace engineering , aesthetics
This work discusses an innovative approach to imaging which can improve the robustness of existing active-range measurement methods and potentially enhance their use in a variety of outdoor applications. By merging a proven modulation technique from the domain of spread-spectrum communications with the bleeding-edge CMOS sensor technology, the prototype of the modulated range sensor is designed and evaluated. A suitable set of application-specific spreading codes is proposed, evaluated and tested on the prototype. Experimental results show that the introduced modulation technique significantly reduces the impacts of environmental factors such as sunlight and external light sources, as well as mutual interference of identical devices. The proposed approach can be considered as a promising basis for a new generation of robust and cost-efficient range-sensing solutions for automotive applications, autonomous vehicles or robots