Optical systems for atmospheric data transmission
Abstract
The use of laser systems for atmospheric data transmission is discussed in the light of recent developments in this field. In particular, attention is given to characteristics of the propagation of laser beams in turbulent atmosphere, noncoherent (direct) detection of optical signals, heterodyne (coherent) detection of optical signals in turbulent atmosphere, and measures against the detrimental effects of atmospheric turbulence on the noise immunity of laser data transmission systems. The discussion also covers characteristics of optical data transmission in an atmosphere containing aerosols and optimal detection of weak signals in the photoelectron counting mode.
- Publication:
-
Moscow Izdatel Radio Sviaz
- Pub Date:
- 1985
- Bibcode:
- 1985MIzRS....R....K
- Keywords:
-
- Atmospheric Optics;
- Channels (Data Transmission);
- Data Transmission;
- Laser Applications;
- Optical Communication;
- Aerosols;
- Atmospheric Attenuation;
- Atmospheric Turbulence;
- Errors;
- Optical Heterodyning;
- Optimization;
- Photoabsorption;
- Photoelectrons;
- Pulse Code Modulation;
- Reception Diversity;
- Signal Reception;
- Signal To Noise Ratios;
- Turbulence Effects;
- Wave Fronts;
- Wave Propagation;
- Lasers and Masers