| Term | Full form | Meaning |
|---|---|---|
| MANPADS | Man-Portable Air-Defense System | shoulder-launched surface-to-air missile (Infrared) |
| NAVWAR | Navigation Warfare | EW applied to navigation/PNT (GNSS and navigation warfare) |
| PNT | Position, Navigation & Timing | what GNSS provides (GNSS and navigation warfare) |
| PRF | Pulse Repetition Frequency | a radar's pulse repetition frequency (Radar) |
| RAM | Radar-Absorbent Material | radar-absorbent material (stealth) (Electronic Counter Measures) |
| RCS | Radar Cross Section | radar cross section — how well something reflects (Radar) |
| RGPO / VGPO | Range / Velocity Gate Pull-Off | deception techniques in range and velocity (Electronic Counter Measures) |
| RWR | Radar Warning Receiver | radar warning receiver (EW: Electronic Support Measures) |
| SAGG | Seeker Aided Ground Guidance | Russian variant of TVM (Missile Guidance) |
| SAM | Surface-to-Air Missile | surface-to-air missile (Executing the fire control sequence using the EMS) |
| SAR / ISAR | Synthetic Aperture Radar / Inverse SAR | imaging radar with a synthetic aperture (Radar) |
| SARH | Semi-Active Radar Homing | semi-active radar guidance (Missile Guidance) |
| SEAD | Suppression of Enemy Air Defenses | suppressing air defences (SEAD & DEAD) |
| SEI | Specific Emitter Identification | recognising an individual transmitter by its fingerprint (Radar) |
| SIGINT | Signals Intelligence | intelligence from signals (COMINT + ELINT) (EW: Electronic Support Measures) |
| SLS | Side Lobe Suppression | suppressing detections and IFF replies via the side lobes (Radar) |
| SNR | Signal-to-Noise Ratio | ratio of echo to noise; determines detection (Radar) |
| SSR | Secondary Surveillance Radar | civil secondary radar with transponder (Radar) |
| STC | Sensitivity Time Control | gain that increases with the echo's travel time, against nearby clutter (Radar) |
| TERCOM | Terrain Contour Matching | terrain navigation without GNSS (Missile Guidance) |
| TVM | Track Via Missile | guidance in which the missile measures and the ground computes (Missile Guidance) |
| TWT | Travelling-Wave Tube | wideband amplifier tube in radars and jammers (Radar) |
| UAS / UAV | Unmanned Aircraft System / Vehicle | drone (Counter-UAS & drone EW) |
| UMOP | Unintentional Modulation on Pulse | unintended modulation on the pulse; the basis for SEI (Radar) |
Tip
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