Extended Risley scanning system with 30 × 360 coverage
2021
We propose a beam scanning system based on an extended Risley prism
structure. This system uses a rotating mirror structure and expands the
original construction of the balanced and stable Risley prism. There is
much research on extended Risley prism structures, but the scanned angle
of their extended systems is less than 180°. The proposed system in this
paper can expand scanned angle to 360°, showing practical significance and
application value in the field of beam scanning. This is achieved by using
reflectors and multiple transmitter and receiver structures with optimized
positions and transmission directions. Simulation results show that the
scanning range is 360° and ±14∘ in the horizontal and vertical
directions, respectively, at 110 m while the angular resolution is
0.2∘×2∘.
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