| Acronym | Meaning |
| DF | Direction Finding |
| DMA | Directory Of Military Application |
| TDM | Time Division Multiplex |
| AEM | Application Evaluation Matrix |
| AUSPEX | Atmospheric Utility Signatures-Predictions And Experiments |
| USGCRP | United States Global Change Research Program |
| IWGMFS | International Working Group On Magnetic Field Satellites |
| FASTEX | Fronts Atlantic Storm Track Experiment |
| TOSS | Tiros Operational Satellite System |
| CAFE | Corporate Average Fuel Economy |