GLONASS
Originally designed by the Soviet Union for military communication purposes in the 1970’s, GLONASS is a satellite constellation that has been…
Field Of View (FOV)
The Field Of View (FOV) is the actual observable area of an optical system like the human eye or a camera.…
Conformal VLC Receivers with Photodetector Arrays
At the University of Central Florida (UCF), Pooya Nabavi and Murat Yuksei have designed and prototyped a wide field-of-view (FOV) optical…
InterSymbol Interference
InterSymbol Interference (ISI) is a kind of distortion that occurs when one or more symbols (pulses in digital baseband transmission) interfere…
GEODSS System
The Ground-Based Electro-Optical Deep Space Surveillance (GEODSS) System is a series of space-observing ground stations in the United States and the…
FSO Underwater
Free-space optical communications are typically performed in free space, such as air and vacuum, due to the high transmissivity of both…
Phased Arrays
Overview A phased array is an array of antennas that can have their beam path steered without physically moving the antennas.…
Modulation Schemes
The following is a list of modulation schemes used in FSO and satcom along with a descriptor of each scheme and…
Elastic Optical Networks (EONs)
Elastic optical networks (EONs) are an application of wavelength division multiplexing (WDM) that operates using very small spacings between transmittable frequencies,…
Optical Wireless Communications (OWC)
Overview Optical wireless communications (OWC) is an umbrella term describing any optical communication technology that does not require a hard-wired link…