Noiseless coding for the Gamma Ray spectrometer
Abstract
The payload of several future unmanned space missions will include a sophisticated gamma ray spectrometer. Severely constrained data rates during certain portions of these missions could limit the possible science return from this instrument. This report investigates the application of universal noiseless coding techniques to represent gamma ray spectrometer data more efficiently without any loss in data integrity. Performance results demonstrate compression factors from 2.5:1 to 20:1 in comparison to a standard representation. Feasibility was also demonstrated by implementing a microprocessor breadboard coder/decoder using an Intel 8086 processor.
- Publication:
-
NASA STI/Recon Technical Report N
- Pub Date:
- June 1985
- Bibcode:
- 1985STIN...8535219R
- Keywords:
-
- Breadboard Models;
- Coders;
- Data Compression;
- Decoders;
- Gamma Ray Spectrometers;
- Oceanography;
- Unmanned Spacecraft;
- Intel 8080 Microprocessor;
- Spacecraft Communication;
- Spacecraft Instrumentation