Abstract: Radar coverage visualization is an important part of battlefield situation display and necessary dependence of combat situation deduction and situation evaluation. For the visualization acquirements of 3D sea battlefield, the problem of radar detection under multi-interferences was researched, and then a visualization model of 3D Radar Coverage and corresponding render method were proposed. Combined with 3D sea battlefield environment,moving targets and inter- ferences of multi-jammers, dynamic rendering of radar coverage under multi interferences in 3D sea battlefield was im- plemented, which not only enriches the display context of battlo-field, but also enhances the power of command and deci- sion in 3D sea battlefield.

Key words: 3D sea battlo-field, Radar detection, Visualization, I3attlo-field situation