Radar may detect a physical target independently of AIS status because the two systems build their target pictures from different sources. AIS receives information broadcast by participating stations, while radar target information is measured by own ship's radar.
AIS supplies identity and target-supplied motion data from participating stations, whereas marine radar measures relative motion by the own ship. Integrated displays may associate these separate inputs when position and motion criteria are met.
Read BriefingBridge teams cross-check AIS against radar for accuracy. AIS receives data broadcast by participating stations, whereas radar target information is measured by own ship's radar; consequently, each system builds its target picture independently.
Read BriefingRadar may detect a physical target independently of AIS status because the two systems build their target pictures from different sources. AIS receives information broadcast by participating stations, while radar target information is measured by own ship's radar.
Read BriefingNeither system is universally more reliable because each builds its target picture from different sources and has distinct limitations.
Read BriefingWhen you are ready to move from evidence to story, continue with the books or follow the complete series order.