Add to ORKGNASA-Lewis' Space Electronics Div. supports ongoing research in advanced satellite communication architectures, onboard processing, and technology development. Recent studies indicate that meshed VSAT (very small aperture terminal) satellite communication networks using FDMA (frequency division multiple access) uplinks and TDMA (time division multiplexed) downlinks are required to meet future communication needs. One of the critical advancements in such a satellite communication network is the multichannel demultiplexer/demodulator (MCDD). The progress is described which was made in MCDD development using either acousto-optical, optical, or digital technologies
Multibeam systems of the future using monolithic microwave integrated circuits to provide phase cont...
The NASA Lewis Research Center has been developing the architecture for a multichannel communication...
In this decade, communications satellite systems will probably face dramatic challenges from alterna...
Traditionally, satellites have performed the function of a simple repeater. Newer data distribution ...
New types of communication satellites will be demanded by future traffic requirements in mobile and ...
One of the critical satellite technologies in a meshed VSAT (very small aperture terminal) satellite...
Analog modulation, frequency-division multiplexing and signal processing for multiple-access satelli...
To make satellite channels cost competitive with optical cables, the use of small, inexpensive earth...
In order to keep up with the ever-increasing demand in communications, photonic technology, that has...
An architecture based on parallel and pipline design approaches has been developed for the Frequency...
An investigation performed for NASA LeRC by COMSAT Labs, of a digitally implemented on-board demulti...
Performance of a 30 GHz frequency division multiple access (FDMA) uplink to a processing satellite i...
The development of a transmultiplexor and a quadrature phase shift keying (QPSK) demodulator is disc...
A brief overview of a processing satellite for a mesh very-small-aperture (VSAT) communications netw...
A major goal of the Digital Systems Technology Branch at the NASA Lewis Research Center is to identi...
Multibeam systems of the future using monolithic microwave integrated circuits to provide phase cont...
The NASA Lewis Research Center has been developing the architecture for a multichannel communication...
In this decade, communications satellite systems will probably face dramatic challenges from alterna...
Traditionally, satellites have performed the function of a simple repeater. Newer data distribution ...
New types of communication satellites will be demanded by future traffic requirements in mobile and ...
One of the critical satellite technologies in a meshed VSAT (very small aperture terminal) satellite...
Analog modulation, frequency-division multiplexing and signal processing for multiple-access satelli...
To make satellite channels cost competitive with optical cables, the use of small, inexpensive earth...
In order to keep up with the ever-increasing demand in communications, photonic technology, that has...
An architecture based on parallel and pipline design approaches has been developed for the Frequency...
An investigation performed for NASA LeRC by COMSAT Labs, of a digitally implemented on-board demulti...
Performance of a 30 GHz frequency division multiple access (FDMA) uplink to a processing satellite i...
The development of a transmultiplexor and a quadrature phase shift keying (QPSK) demodulator is disc...
A brief overview of a processing satellite for a mesh very-small-aperture (VSAT) communications netw...
A major goal of the Digital Systems Technology Branch at the NASA Lewis Research Center is to identi...
Multibeam systems of the future using monolithic microwave integrated circuits to provide phase cont...
The NASA Lewis Research Center has been developing the architecture for a multichannel communication...
In this decade, communications satellite systems will probably face dramatic challenges from alterna...