| 摘要 |
<p>PROBLEM TO BE SOLVED: To solve the problem that a tracking accuracy is worsened along with the deterioration of a range-finding accuracy by effects of measurement errors, etc., in a tracking apparatus using a passive three-dimensional tracking system. SOLUTION: A passive range-finding accuracy is evaluated, and a passive two-dimensional tracking process and a passive three-dimensional tracking process are changed over on the basis of the evaluation result, thereby enabling tracking with a higher accuracy.</p> |
