| Acronym | Meaning |
| DIC | Defense Intelligence College |
| DECUS | Digital Equipment Computer Users Society |
| FSK | Frequency Shift Key(ing) |
| OECD | Organization For Economic Cooperation And Development |
| ISMRM | Integrated Soil Moisture Retrieval Models |
| LL | Lincoln Laboratories |
| BAI | Biosphere-Atmosphere Interactions Project |
| GRI | Gas Research Institute |
| SHF | Super High Frequency |
| POGO | Polar Orbiting Geophysical Observatory |