Smart Antennae

Overview Smart antennae are antenna arrays with smart processing algorithms and are used in identifying spatial signals. A smart antenna takes…

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FSO Overview and Key Terms

Overview Free-Space Optics (FSO) communication, also called free-space optical communication, is an optical communication technology that uses light propagating in free…

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Interception Resistance

Overview FSO communications have built-in interception resistance due to the way information is sent. Consider first how a radio-frequency signal is…

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Space Development Agency (SDA)

The Space Development Agency (SDA) is a United States government entity that researches, develops, and fields next-generation technology for the United…

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Wavelength Division Multiplexing (WDM)

Overview Wavelength division multiplexing (WDM) is the combination of many optical signals into one transmission medium. Rather than sending a signal…

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FSO Physical Limitations

Some FSO Limitations include the following: Obstructions Flying birds, trees, and tall buildings can temporarily block a single beam when it…

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Optical Inter-Satellite Links (OISL)

Overview Inter-Satellite Links (ISL) allow satellites to communicate with each other in a constellation. Optical Inter-Satellite Links (OISL) are ISLs that utilize…

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Optical Limitations

Absorption Absorption is caused by molecules suspended in the terrestrial atmosphere interacting with an incident photon and absorbing some or all…

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Quantum Key Distribution (QKD)

Overview Quantum Key Distribution (QKD) is a communications method which uses a cryptographic protocol involving components of quantum mechanics. It is…

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Dynamic Networks (SDN/NFV)

Dynamic networks are networking systems that are designed to be adapted to a customer’s needs. Typically, dynamic networking refers to controlling…

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