3D Dynamic Simulation Of Dual Wedge Scanning LiDAR

Dual wedge scanning is a broad prospect method of next generation Laser imaging system. Due to the unique scanning mode and imaging characteristics, data of dual wedge Laser imaging system is sensitive to parameters and environment, and it is significant in both theory and application to research its feature of time and space. This paper firstly models its dynamic imaging process and designs a simulation system in three-dimensional environment based on the imaging principle of dual wedge scanning. Besides simulates point cloud data in different scenes of distinct parameters the paper analyses the data in several aspects. The research result can be used to verify the performance of the three-dimensional object detection and recognition algorithms, in addition, it has reference value for design and development of the dual wedge scanning Laser imaging system. The main contents are as follows:(1) In the Li DAR simulation part, the paper studies the advantages and disadvantages of existing varity of Li DAR simulation platform and proposed the requirement of double optical wedge scanning Li DAR 3D simulation platform.(2) Based on double optical wedge scanning mechanism, studied of its mathematical properties and showed the different method of scanning, analysised the feature of ouput data of different method.(3) In the part of 3D dynamic simulation, the paper details of the construction and organization of three-dimensional space, including route planning, purpose and method of preparation and model terrain control, explained the parameters double optical wedge scanning laser radar, and set guidelines for the error simulation. Besides, simulation is verified by different conditions of data output, analies the points cloud characteristic in varies parameters and environment situations.(4) Proposed a real-time target detection algorithm based on dual wedge scanning Li DAR simulation platform. Performance evaluation conducted in designed experiments.