Radar Observer · Performance — Resolution
Two targets at the same range but slightly different bearings merge into one echo when the radar's ____ is too wide.
- APulse length
- BHorizontal beam width✓ Correct
- CRange scale
- DPulse repetition rate
Explanation
Bearing (or angular) resolution is set by horizontal beam width. A wide beam paints both targets as one arc; a narrow beam separates them. Beam width also causes targets to appear wider in bearing than they really are.
Authority: Radar Navigation — Resolution
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