Digital onboard processor for directional charged particle flux measurements in space.
Abstract
Spacecraft-borne instruments for the measurement of directional particle flux distributions rely increasingly on digital onboard processors for improving their data collection efficiency. A special purpose Data Processor is described from the point of view of how it complements the particle sensors for achieving optimum directional, energy and time measurements of interplanetary energetic proton fluxes. Particular attention is given to the establishment of pseudo-synchronism between data acquisition in spin-synchronous intervals and data transmission through the telemetry in order to achieve a 100% collection efficiency.
- Publication:
-
Space Science Instrumentation
- Pub Date:
- May 1977
- Bibcode:
- 1977SSI.....3..187B
- Keywords:
-
- Airborne/Spaceborne Computers;
- Data Processing Equipment;
- Digital Systems;
- Extraterrestrial Radiation;
- Particle Flux Density;
- Channels (Data Transmission);
- Cmos;
- Cosmic Rays;
- Data Acquisition;
- Data Compression;
- Proton Flux Density;
- Time Division Multiplexing;
- Spacecraft Instrumentation;
- Space Instrumentation