Introduction to AM baseband telemetry techniques
AM baseband telemetry system for wideband signal transmission emphasizing SSB, DSB and quadrature multiplexed DSB modulation techniques
Frost, W. O.↗
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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.
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A system for retrieving and processing data from balloons at high altitudes
Multiplexer-interface system for digital nuclear and position control data transfer from high altitude balloons to earth monitoring instruments
Baldry, R. H.↗
Reliability analysis and architecture of a hybrid-redundant digital system - Generalized triple modular redundancy with self-repair
Design and reliability of digital systems for hard cores of fault tolerant computers /hybrid- redundant systems/, discussing advantages over multiplexed systems
Avizienis, A.↗
Theory and design of coherent digital systems which track Doppler frequency
Coherent digital communication systems optimal design based on unified theory, discussing tradeoffs between error rates, Doppler tracking capability and time and frequency division multiplexing
Weber, C. L.↗
Digital telemetry system eliminates data redundancy
Floating aperature, zero-order predictor /ZOP/ circuit eliminates telemetered data redundancy by examining data from each sensor before it is multiplexed and transmitted. Digital devices to implement design are off-the-shelf items such as gates, registers and flip-flops, which are readily amenable to large-scale integration techniques.
Hymer, R. L.↗
Portable low-frequency vibration measuring and recording system
Information gathering system measures and records vibrations which affect personnel comfort in space, air, and surface vehicles. Three vibration transducers with mutually perpendicular axes control the frequency output of voltage controlled oscillators /VCO/. Outputs of VCO'S are multiplexed and then recorded on one track of stereo tape recorder.
Clevenson, S. A.↗
A pseudo random-access synchronous meteorological satellite system
Communications satellite system uses pseudo-random time frequency multiplexing technique for extracting real-time meteorological data from great number of isolated weather stations /data collection platforms/ situated randomly throughout the world.
Darcey, R. J.↗
Data Compression System with a Minimum Time Delay Unit-Patent
Minimum time delay unit for conventional time multiplexed data compression channels
Bourke, D. G.↗
Satellite communication system and method Patent
Earth satellite relay station for frequency multiplexed voice transmission
Darcey, R. J.↗
Programmable telemetry system Patent
Time division multiplexed telemetry transmitting system controlled by programmed memory
Czarcinski, E. A.↗
Multiple image overlay storage methods
Image quality achievable with optical multiplexing techniques - overlay storage methods
Mueller, P. F.↗
Format and address equation generation by computer
Algorithm and computer program generating formats and logic equations for addressable remote multiplexed time division telemetry systems
Hill, K. H.↗
Remote Modules - An approach to decentralized telemetry systems
Remote modules for spacecraft analog/digital telemetry distributing multiplexer input gates
Maxwell, M. S.↗
Man's role in integrated vehicular information management systems
Integrated vehicular information management systems consisting of computers, multiprocessors, multiplexers, dedicated subsystem processors, sensors and effectors
Johnson, I. S.↗
Electronic switching circuit uses complementary non-linear components
Inherent switching properties of saturable inductors and storage diodes are combined to perform large variety of electronic functions, such as pulse shaping, gating, and multiplexing. Passive elements replace active switching devices in generation of complex waveforms.
Zucker, O. S.↗
Low distortion automatic phase control circuit
Circuit for generation and demodulation of quadrature double side band signals in frequency division multiplexing system is described. Circuit is designed to produce low distortion automatic phase control. Illustration of circuit and components is included.
Hauge, G.↗
Insulated-gate field-effect transistor strain sensor
Strain sensors that can be switched on and off were fabricated from p-channel IGFET on thin filament n-type silicon crystals with silicon dioxide layer sputtered over transistor for passivation. Applications include integration with microelectronic circuits for multiplexing.
Gross, C.↗
Design of a 12-GHz multicarrier earth-terminal for satellite-CATV interconnection
The design and development of the front-end for a multi-carrier system that allows multiplex signal transmission from satellite-borne transponders is described. Detailed systems analyses provided down-converter specifications. The 12 GHz carrier down-converter uses waveguide, coaxial, and microstrip transmission line elements in its implementation. Mixing is accomplished in a single-ended coaxial mixer employing a field-replacable cartridge style diode.
Newman, B. A.↗