| 摘要 |
<p>PURPOSE:To process the judgment of landing and application of an arrival time accurately and automatically by relaying a target being tracked with a secondary radar with precisely measuring radar to judge arrival near a landing point. CONSTITUTION:A secondary radar data 1 processed by tracking with a secondary radar tracking processing section 3 to be collated with a flight plan from a flight plan inputting section 6 with an identifying/correlating section 5 so that correlation is performed to check coincidence between the identification of a target and the flight plan. The correlation in this case is made based on a position data (two-dimensional or three-dimensional) as no identification data is contained in a data obtained with a precisely measuring radar device. When a correlation target is outside a coverage of the secondary radar device because of a short distance, a tracking is continued in combination of the flight plan as target of a precisely measuring approach radar device along to judge whether the target enters an arrival time calculating zone.</p> |
