Pulse Code Modulation (PCM)
Pulse Code Modulation (PCM) is a digital modulation technique used to convert analog information into a binary sequence. Each digit in…
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,…