Design of a deep sea LiDAR system
Beam steering design
J. Jonk (TU Delft - Electrical Engineering, Mathematics and Computer Science)
B. Minderman (TU Delft - Electrical Engineering, Mathematics and Computer Science)
G.J.T. Leus – Mentor (TU Delft - Signal Processing Systems)
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Abstract
Though several sensors are available for underwater scanning and ranging, they all have their limits. SONAR sensors are limited in resolution, and scanning mechanisms using a form of light for carrying the data suffer from high attenuation in turbid waters.
The goal of this project was to design a LiDAR system that is capable of overcoming these limitations. To tackle this problem, three groups were formed that focused on different parts of the LiDAR. However, first a complete system overview has been created by the entire project team. First a literature research has been performed. After that, system wide design decisions were discussed and made and also requirements were set. From there on, every subgroup would focus on their own part of the system. In this thesis a more detailed description of the beam steering module shall be given. Again some literature research has been performed. After that, the design decisions were made, based on the requirements. Finally a design was implemented and tested.
For the beam steering module to be successful, it should provide accurate control over the angle at which the laser beam is sent out. Though improvements can be made, the system does comply to the minimum accuracy requirement.