A Retroreflection Reduction Technique Based on the Wavefront Coded Imaging System
A novel anti-cat-eye effect imaging technique based on wavefront coding is proposed as a solution to the problem of previous anti-cat-eye effect imaging techniques where imaging quality was sacrificed to reduce the retroreflection from the photoelectric imaging equipment. With the application of the...
| Main Authors: | , , , , , |
|---|---|
| Format: | Article |
| Language: | English |
| Published: |
MDPI AG
2021-11-01
|
| Series: | Crystals |
| Subjects: | |
| Online Access: | https://www.mdpi.com/2073-4352/11/11/1366 |
| _version_ | 1797510644295008256 |
|---|---|
| author | Qing Ye Yunlong Wu Yangliang Li Hao Zhang Lei Wang Xiaoquan Sun |
| author_facet | Qing Ye Yunlong Wu Yangliang Li Hao Zhang Lei Wang Xiaoquan Sun |
| author_sort | Qing Ye |
| collection | DOAJ |
| description | A novel anti-cat-eye effect imaging technique based on wavefront coding is proposed as a solution to the problem of previous anti-cat-eye effect imaging techniques where imaging quality was sacrificed to reduce the retroreflection from the photoelectric imaging equipment. With the application of the Fresnel–Kirchhoff diffraction theory, and the definition of generalized pupil function combining both phase modulation and defocus factors, the cat-eye echo formation of the wavefront coded imaging system is theoretically modeled. Based on the physical model, the diffracted spot profile distribution and the light intensity distribution on the observation plane are further simulated with the changes in the defocus parameter and the phase modulation coefficient. A verification test on the cat-eye laser echo power of the wavefront coded imaging system and that of the conventional imaging system at a 20 m distance are conducted, respectively. Simulations and experiment results show that compared with conventional imaging systems, the wavefront coding imaging system can reduce the retroreflection echo by two orders of magnitude while maintaining better imaging quality through defocusing. |
| first_indexed | 2024-03-10T05:35:14Z |
| format | Article |
| id | doaj.art-3784371f685442ba813e380cf7b054ae |
| institution | Directory Open Access Journal |
| issn | 2073-4352 |
| language | English |
| last_indexed | 2024-03-10T05:35:14Z |
| publishDate | 2021-11-01 |
| publisher | MDPI AG |
| record_format | Article |
| series | Crystals |
| spelling | doaj.art-3784371f685442ba813e380cf7b054ae2023-11-22T22:58:32ZengMDPI AGCrystals2073-43522021-11-011111136610.3390/cryst11111366A Retroreflection Reduction Technique Based on the Wavefront Coded Imaging SystemQing Ye0Yunlong Wu1Yangliang Li2Hao Zhang3Lei Wang4Xiaoquan Sun5State Key Laboratory of Pulsed Power Laser Technology, National University of Defense Technology, Hefei 230037, ChinaState Key Laboratory of Pulsed Power Laser Technology, National University of Defense Technology, Hefei 230037, ChinaState Key Laboratory of Pulsed Power Laser Technology, National University of Defense Technology, Hefei 230037, ChinaState Key Laboratory of Pulsed Power Laser Technology, National University of Defense Technology, Hefei 230037, ChinaState Key Laboratory of Pulsed Power Laser Technology, National University of Defense Technology, Hefei 230037, ChinaState Key Laboratory of Pulsed Power Laser Technology, National University of Defense Technology, Hefei 230037, ChinaA novel anti-cat-eye effect imaging technique based on wavefront coding is proposed as a solution to the problem of previous anti-cat-eye effect imaging techniques where imaging quality was sacrificed to reduce the retroreflection from the photoelectric imaging equipment. With the application of the Fresnel–Kirchhoff diffraction theory, and the definition of generalized pupil function combining both phase modulation and defocus factors, the cat-eye echo formation of the wavefront coded imaging system is theoretically modeled. Based on the physical model, the diffracted spot profile distribution and the light intensity distribution on the observation plane are further simulated with the changes in the defocus parameter and the phase modulation coefficient. A verification test on the cat-eye laser echo power of the wavefront coded imaging system and that of the conventional imaging system at a 20 m distance are conducted, respectively. Simulations and experiment results show that compared with conventional imaging systems, the wavefront coding imaging system can reduce the retroreflection echo by two orders of magnitude while maintaining better imaging quality through defocusing.https://www.mdpi.com/2073-4352/11/11/1366cat-eye laser echoretroreflection reductionwavefront coded imaging systemFresnel–Kirchhoff diffraction theory |
| spellingShingle | Qing Ye Yunlong Wu Yangliang Li Hao Zhang Lei Wang Xiaoquan Sun A Retroreflection Reduction Technique Based on the Wavefront Coded Imaging System Crystals cat-eye laser echo retroreflection reduction wavefront coded imaging system Fresnel–Kirchhoff diffraction theory |
| title | A Retroreflection Reduction Technique Based on the Wavefront Coded Imaging System |
| title_full | A Retroreflection Reduction Technique Based on the Wavefront Coded Imaging System |
| title_fullStr | A Retroreflection Reduction Technique Based on the Wavefront Coded Imaging System |
| title_full_unstemmed | A Retroreflection Reduction Technique Based on the Wavefront Coded Imaging System |
| title_short | A Retroreflection Reduction Technique Based on the Wavefront Coded Imaging System |
| title_sort | retroreflection reduction technique based on the wavefront coded imaging system |
| topic | cat-eye laser echo retroreflection reduction wavefront coded imaging system Fresnel–Kirchhoff diffraction theory |
| url | https://www.mdpi.com/2073-4352/11/11/1366 |
| work_keys_str_mv | AT qingye aretroreflectionreductiontechniquebasedonthewavefrontcodedimagingsystem AT yunlongwu aretroreflectionreductiontechniquebasedonthewavefrontcodedimagingsystem AT yangliangli aretroreflectionreductiontechniquebasedonthewavefrontcodedimagingsystem AT haozhang aretroreflectionreductiontechniquebasedonthewavefrontcodedimagingsystem AT leiwang aretroreflectionreductiontechniquebasedonthewavefrontcodedimagingsystem AT xiaoquansun aretroreflectionreductiontechniquebasedonthewavefrontcodedimagingsystem AT qingye retroreflectionreductiontechniquebasedonthewavefrontcodedimagingsystem AT yunlongwu retroreflectionreductiontechniquebasedonthewavefrontcodedimagingsystem AT yangliangli retroreflectionreductiontechniquebasedonthewavefrontcodedimagingsystem AT haozhang retroreflectionreductiontechniquebasedonthewavefrontcodedimagingsystem AT leiwang retroreflectionreductiontechniquebasedonthewavefrontcodedimagingsystem AT xiaoquansun retroreflectionreductiontechniquebasedonthewavefrontcodedimagingsystem |