Table 1 Direction-finding measurement techniques comparison
Parameter | |||||
|---|---|---|---|---|---|
Technique | Number of received elements | Distance between elements | Target relative distance | Azimuth and Elevation Beam-width | Ambiguity |
Amplitude comparison | 2–3 | Long | Medium-High | Narrow | High |
Interferometer | 4–5 | Short | Medium | Narrow | Medium |
TOA | 3–4 | Long | Medium-High | Wide | Medium |
TDOA | 4 | Short | Medium-High | Narrow | Medium |
DDPhase | 4 | Short-Long | Medium-High | Narrow | Low |