Time division access feasibility study modulation and synchronization considerations
Time division access system for satellite communications, and figure of merit for effects of bit and frequency synchronization
SEARCH · Engineering Papers
Search indexed NASA NTRS and DOE OSTI research on propulsion, heat transfer, battery materials and energy systems. Follow report and document links to the original sources.
Quote a phrase for an exact phrase match. Source license links do not imply unrestricted reuse.
Time division access system for satellite communications, and figure of merit for effects of bit and frequency synchronization
Biophysics research projects on cellular synthesis, growth, and division
Cell division delay without lethality in Escherichia coli induced by near UV radiation, noting growth delay and photoprotection
Reliability studies of single interrogation and single data cables used in prototype addressable time division multiplexer system
Design and performance of single sideband-double sideband auxiliary time division multiplexer prototype and demultiplexer breadboard model
Doppler compensation for maintaining signal synchronization of time division multiple access
Performance of synchronized time division multiple access system for satellite communication with ground stations
Synchronizing apparatus for multi-access satellite time division multiplex system
Photoinhibition of cell division and growth in Euglenoid flagellates by fluorescent and incandescent visible light
Motion-distorted photograph deblurring method using extended range holographic Fourier transform division
Theoretical biology of cellular synthesis, growth, and division
Control of cell division by electrical voltage of surface membrane
Time division multiplexer with magnetic latching relays
Escherichia coli cell division patterns, discussing generation times spread, gamma ray irradiation in nutrient broth, DNA damage and growing points, etc
Time division relay synchronizer with master sync pulse for activating binary counter to produce signal identifying time slot for station
Multiuser satellite communications system transmission capacity, comparing time division with Walsh multiplexing
This report is part of a series of annual papers on Advanced Concepts and Missions Division (ACMD) publications. It contains a bibliography and corresponding abstract of all papers presented or published by personnel of ACMD during the calendar year 1971. Also included are abstracts of final reports ACMD contracted studies perfomed during this time period.
A time-division multiplexing system has been developed that is significantly different from commercially available equipments. Multiplexing is achieved by interleaving blocks of data from each source, preceded by a short coded bit pattern specifying the source of that particular block of data. Data blocks are transmitted as they become available from each particular source. Hence, synchronism of the input and output rates is not required. The prototype system can accommodate input rates as high as 461 kbit/sec on a single input channel, and output rates as high as 953 kbit/sec. The system makes possible use of an excess of 90% of channel capacity for information transmittal.