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Section 5 Principle
False Echo by Multiple Reflection
As Figure 5-4, when the own ship is in side by side with a large ship or
building, evenly spaced plural echoes appear in one direction. In this case, echo is
the nearest echo to the own ship.
Radar Interference
When other ship’s radar operated in same frequency is the vicinity of own
ship, Radar interference pattern appears on the screen as the Figure 5-5. As
interference pattern appears in a form of dotted stripes and moves around the
screen but the pattern is not stationary, discrimination from the true target is
rather easy.
The IR control will help reduce or eliminate this noise. In severe cases
shifting the PRF may also be necessary.
Figure 5-4
Figure 5-5
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