Add to ORKGA unique digital multi-rate demodulator (MRD) architecture is presented for onboard satellite communications processing. The multi-rate feature enables the same demodulator hardware to process either one wideband channel (WBC), or process up to thirty-two independent narrowband channels (NBC) that are time division multiplexed (TDM). The MRD can process many quadrature modulation format such as offset quadrature phase shift keying (OQPSK). Possible applications include voice and data transmission for commercial or military users
New payload concepts of low cost earth stations for future mobile satellite communications can only ...
This paper deals with the design and implementation aspects of high data rate digital demodulators. ...
A digital predistortion (DPD) scheme is presented for non-linear distortion mitigation in multi-carr...
Traditionally, satellites have performed the function of a simple repeater. Newer data distribution ...
An architecture based on parallel and pipline design approaches has been developed for the Frequency...
Economical operation of future satellite systems for mobile communications can only be fulfilled by ...
The development of a transmultiplexor and a quadrature phase shift keying (QPSK) demodulator is disc...
The need for a Programmable Rate Digital Satellite Modem capable of supporting both burst and contin...
First phase development of an advanced modulation technology which synergistically combines coding a...
One of the critical satellite technologies in a meshed VSAT (very small aperture terminal) satellite...
New types of communication satellites will be demanded by future traffic requirements in mobile and ...
NASA-Lewis' Space Electronics Div. supports ongoing research in advanced satellite communication arc...
For mobile satellite communication systems substantial gains in performance can be achieved by havin...
The architecture of High Rate (600 Mega-bits per second) Digital Demodulator (HRDD) ASIC capable of ...
An investigation performed for NASA LeRC by COMSAT Labs, of a digitally implemented on-board demulti...
New payload concepts of low cost earth stations for future mobile satellite communications can only ...
This paper deals with the design and implementation aspects of high data rate digital demodulators. ...
A digital predistortion (DPD) scheme is presented for non-linear distortion mitigation in multi-carr...
Traditionally, satellites have performed the function of a simple repeater. Newer data distribution ...
An architecture based on parallel and pipline design approaches has been developed for the Frequency...
Economical operation of future satellite systems for mobile communications can only be fulfilled by ...
The development of a transmultiplexor and a quadrature phase shift keying (QPSK) demodulator is disc...
The need for a Programmable Rate Digital Satellite Modem capable of supporting both burst and contin...
First phase development of an advanced modulation technology which synergistically combines coding a...
One of the critical satellite technologies in a meshed VSAT (very small aperture terminal) satellite...
New types of communication satellites will be demanded by future traffic requirements in mobile and ...
NASA-Lewis' Space Electronics Div. supports ongoing research in advanced satellite communication arc...
For mobile satellite communication systems substantial gains in performance can be achieved by havin...
The architecture of High Rate (600 Mega-bits per second) Digital Demodulator (HRDD) ASIC capable of ...
An investigation performed for NASA LeRC by COMSAT Labs, of a digitally implemented on-board demulti...
New payload concepts of low cost earth stations for future mobile satellite communications can only ...
This paper deals with the design and implementation aspects of high data rate digital demodulators. ...
A digital predistortion (DPD) scheme is presented for non-linear distortion mitigation in multi-carr...