Research On Porous Space Laser Ransmittin About Diversity Technology

With the increasing development of communication technology in recent years, space laser communication has become a hot research of optical communication. Effects of atmospheric turbulence seriously affect the performance of laser communication systems, making ber increased. Studies show that the ber increases with the increase of turbulence intensity, so we can use the technology of porous transmitting to reduce the impact of atmospheric turbulence on the system, reducing the ber, which improves the reliability of system.This paper introduces the formation and the basic characteristics of atmospheric turbulence, and studies the transport theory of the beam in atmospheric turbulence. According to theoretical analysis and analysis of porous space laser technology, such as MATLAB and other software, we make a conclusion:both increasing the launch aperture named beam number and choosing long-wave laser to transmit information, can reduce light intensity flashing. As a result, we can reduce ber of system. The correlation coefficient between the laser beam is smaller, system ber being smaller, which can improve the performance of the system.