A hybrid algorithm for wave-front corrections applied to satellite-to-ground laser communication

Laser communications hold accurate data rate for ground satellite links. The laser beam is transmitted through the atmosphere. The clear-air turbulence induces a number of phase distortions that damage wave-front. Adaptive optics (AO) treats wave front correction. The nature of AO systems is iterative; it can be integrated in metaheuristic algorithms such as genetic algorithm (GA). This paper presents improved version of algorithm for wave-front corrections. The improved algorithm is based on genetic algorithm (GA) and adaptive optics approach (OA). It is implemented in a computer simulation model called object-oriented matlab adaptive optics (OOMAO). The optimisation process involves best possible GA parameters as a function of population size, iteration count, and the actuators’ voltage intervals. Results show that the application of GA improves the performance of AO in wave-front corrections and the communication between satellite-to-ground laser links as well.

• wavefront correction
• adaptive optics
• satellite-to-ground laser communication
• clear air turbulence
• genetic algorithm
• hybrid algorithm
• metaheuristic optimization

• Adaptive optics and wavefront sensing
• Optical Wireless Communication Technologies
• Semiconductor Lasers and Optical Devices
• wavefront correction
• adaptive optics
• satellite-to-ground laser communication
• clear air turbulence
• genetic algorithm
• hybrid algorithm
• metaheuristic optimization
• Atomic and Molecular Physics, and Optics
• Electrical and Electronic Engineering
• Physics and Astronomy
• Engineering