Cai Yi, Wang Hongman, Qi Bo. Simulation of optimum algorithms with wavefront sensorless in satellite-to-ground laser communication[J]. Infrared and Laser Engineering, 2013, 42(4): 1063-1068.
| Citation:
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Cai Yi, Wang Hongman, Qi Bo. Simulation of optimum algorithms with wavefront sensorless in satellite-to-ground laser communication[J]. Infrared and Laser Engineering, 2013, 42(4): 1063-1068.
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Simulation of optimum algorithms with wavefront sensorless in satellite-to-ground laser communication
- 1.
Institute of Optics and Electronics,Chinese Academy of Sciences,Chengdu 610209,China;
- 2.
Key Laboratory of Beam Control,Chinese Academy of Sciences,Chengdu 610209,China;
- 3.
University of Chinese Academy of Sciences,Beijing 100049,China
- Received Date: 2012-09-05
- Rev Recd Date:
2012-10-09
- Publish Date:
2013-04-25
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Abstract
In the system of satellite-to-ground laser communication, the atmosphere disturb reduces the quality of communication. Correcting disturb at the sink of the communication can improve the quality of communication. Sometimes, the sensor can't estimate the wave-front, so it needs to use wave-front sensor-less to correct the disturb. In order to compensate the disturb real-time, we simulated three improved optimum algorithms to correct the disturb, and compared the differences among Genetic algorithm(GA), sealing annealing algorithm(SA) and model-based approach algorithm in the convergence speed, precision, stability and the number of adding voltage to the deformed mirror. The simulation shows that: GA convergences very slowly, but can improve normalized intensity form 0.079 5 up to 0.99, It can be used in correcting the static aberration, the model-based approach algorithm only need two iterations to improve normalized intensity form 0.079 5 up to 0.862, It's proper for correcting the atmosphere disturb real-time.
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