| 摘要 |
<p>PURPOSE:To allot a time required for search to tracking, to increase the number of hits of transmission pulses in tracking and thereby to improve detective capacity by applying a precision approach radar PAR only to tracking while the search for a target is executed by an airport surveillance radar ASR and a second surveillance radar SSR. CONSTITUTION:Data (a distance R' to a target, the azimuth thetaAZ' and an altitude H') of ASR and SSR are inputted to a coordinate conversion element 1 and converted into data at a set position and a set altitude of PAR, and then these data are outputted to a data conversion element 2. In the data conversion ele ment 2, an elevation thetaEL is determined and outputted to a tracking processing element 3. In the tracking processing element 3 a beam number is determined and outputted to a beam control element 4. The beam control element 4 generates a phase shift code of an antenna 5 corresponding to the beam number and directs an antenna beam to the target caught by the ASR and the SSR. A transmission element 6 and a reception element 7 conduct transmission and reception through a directional coupler 9, and a distance R, an azimuth angle thetaAZ and the elevation thetaEL are displayed in a display element 8.</p> |
