| 摘要 |
PURPOSE:To detect exactly the azimuth, elevation angle and a run-length of an interference signal by providing a receiving means by an antenna pencil beam and a clutter eliminating means, and also providing a detecting means of the azimuth, elevation angle and the respective ranges. CONSTITUTION:The intensity of a receiving signal is corrected by an STC (sensitive time control) amplitude correcting circuit 4, and the output video 105 of the STC4 is controlled by a clutter eliminating circuit 5. Also, averaged amplitude value outputs corresponding to three antenna beams being adjacent to an elevation angle are compared by an elevation angle signal extracting circuit 9 and outputted together with antenna scanning beam information, and a value of the azimuth direction of an average amplitude and an azimuth data corresponding to the antenna beam are extracted by an azimuth signal extracting circuit 11, and outputted together with a data of the elevation angle direction. Subsequently, the output of the azimuth signal 11 is selected, and a bearing, an elevation angle and a run-length of a disturbing signal source are calculated by an operating circuit 12. In such a way, the interference signal source can be detected exactly. |
