free-space channel
communications
Learn about this topic in these articles:
optical communication
- In telecommunications media: The free-space channel
The loss mechanisms in a free-space optical channel are virtually identical to those in a line-of-sight microwave radio channel. Signals are degraded by beam divergence, atmospheric absorption, and atmospheric scattering. Beam divergence can be minimized by collimating (making parallel) the transmitted light into…
Read More