Ruoyan WANG, Dan ZHU, Qun YUAN, Weijian LIU, Zhishan GAO. Sub-aperture Stitching Interferometry Based on Down-sampled Particle Swarm Optimization[J]. Acta Photonica Sinica, 2022, 51(6): 0612001
- Acta Photonica Sinica
- Vol. 51, Issue 6, 0612001 (2022)
Fig. 1. Stitching model of two adjacent sub-apertures in global coordinate
Fig. 2. Flowchart of sub-aperture stitching based on down-sampling particle swarm optimization algorithm
Fig. 3. Surface map of spherical mirror for simulation analysis
Fig. 4. Results after particle swarm optimization
Fig. 5. Residual phase error of the overlapped region after positioning by the proposed method
Fig. 6. Testing results of a 4-inch plane mirror
Fig. 7. Testing of off-axis parabolic mirror by sub-aperture stitching interferometry
Fig. 8. Surface maps of the 7 sub-apertures of tested off-axis parabolic mirror
Fig. 9. Surface testing results of the parabolic mirror
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Table 1. Influence of different down sampling order on running time and surface testing accuracy
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