A medium-data-rate digital telemetry system
National Aeronautics and Space Administration, 1964 - Computers - 10 pages
Earth-orbiting satellites require on-board data storage. A suitable medium-data-rate digital telemetry system with lO7-bit storage is described. Since this storage is provided by a tape recorder, a unique technique for wow and flutter compensation has been developed. Hardware applicable to the radiation experiments on the Tiros and Nimbus meteorological satellites has been built and is currently being tested.
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Aeronautics and Space ANALOG GATING NETWORK analog-to-digital converter bit shift register bit storage bit synchronizer BITS 7 BITS bits per sec clock track currently being tested D-2315 National Aeronautics data words demodulator digital telemetry sys DIGITAL TELEMETRY SYSTEM digital-to-analog converters Earth-orbiting satellites require Feinberg Figure five radiometer channels flutter compensation FORMAT GATING NETWORK FRAME FORMAT GATING Goddard Space Flight Hardware applicable integrated circuits John G Lesko MEDIUM-DATA-RATE DIGITAL TELEMETRY MRIR-PCM msec NASA NASA TN NASA TECHNICAL NOTE Nimbus meteorological satellites onboard data storage orbit OTS price output parallel parallel-to-serial converter Paul pulses radiation experiments require onboard data satellites require onboard serial train signal Space Administration Space Flight Center storage flip-flops storage is described storage is provided strobe suitable medium-data-rate digital tape recorder TECHNICAL NOTE D-2315 technique for wow Tiros and Nimbus TN D-2315 National Townsend unique technique watts word sync wow and flutter zero