| 摘要 |
<p>PURPOSE:To output an accurate target, by calculating the SR data within a range of a definite straight distance difference centering around one SIF data when the SR data (the echo of pulse radar) and the SIF data (the echo of secondary radar) are synthesized to set the same to the data to the same airplane. CONSTITUTION:The echo of pulse radar is received and subjected to A/D conversion to be inputted to an SR buffer memory 1 as SR data (a) and azimuth angle data (c) is inputted to a correlation processing circuit 30 at each time when the azimuth angle of the pulse data changes. The echo returning from an airplane is received and subjected to A/D conversion to be inputted to an SIF buffer memory 2 as SIF data (b). The correlation processing circuit 30 calculates the SR data present at the nearest distance around one SIF data and synthesizes signals to output the same. By this method, even when the airplane is approaching, a target can be accurately specified.</p> |
