Liwen Li, Zhongcheng Liang, Rui Zhao, Jianfei Guan, Meimei Kong, Tao Chen, Yue Zhang. Optimization of Multiobjective Simulated Annealing Array for Optical Synthetic Aperture[J]. Laser & Optoelectronics Progress, 2021, 58(16): 1611001
- Laser & Optoelectronics Progress
- Vol. 58, Issue 16, 1611001 (2021)
Fig. 1. Two classic array structures. (a) Golay6 array; (b) Golay9 array
Fig. 2. MTF curves of Golay6 under different filling factors. (a) fx direction; (b) fy direction
Fig. 3. Desired MTF curve of the Golay6 array structure. (a) fx direction; (b) fy direction
Fig. 4. Array structure before and after optimization. (a) Initial structure; (b) optimized structure
Fig. 5. MTF of the array structure before and after optimization. (a) MTF of the initial array structure; (b) MTF of the optimized array structure; (c) top view of the initial array structure; (d) top view of the optimized array structure
Fig. 6. MTF curve of the array structure in logarithmic coordinate system. (a) fx direction; (b) fy direction
Fig. 7. Imaging results of different structures. (a) Original test card; (b) initial aperture array; (c) optimized aperture array
Fig. 8. Simulated image and MTF of the array in the fx direction before and after optimization. (a) Simulated image of the Golay6; (b) simulated image after optimization; (c) MTF of the array before and after optimization
Fig. 9. Simulated image and MTF of the array in the fy direction before and after optimization. (a) Simulated image of the Golay6; (b) simulated image after optimization; (c) MTF of the array before and after optimization
Fig. 10. MTF curve of the array structure before and after optimization (F=11.5%). (a) fx direction; (b) fy direction; (c) π/4 direction of x axis
Fig. 11. MTF curve of the array structure before and after optimization (F=13.0%). (a) fx direction; (b) fy direction; (c) π/4 directionn direction of x axis
Fig. 12. Array structure obtained by different α. (a) α=0.91; (b) α=0.94; (c) α=0.97
Fig. 13. MTF of the array structure with different α . (a) α=0.91; (b) α=0.94; (c) α=0.97
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Table 1. Objective function values of the array structure before and after optimization
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Table 2. Objective function value of the optimized array structure under different α
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