| 摘要 |
<P>PROBLEM TO BE SOLVED: To solve the problem of the conventional method in which, when a target signal exists in a reception signal for calculating weight, not only an undesired signal but also the target signal are suppressed after adaptive signal processing and application, so that the reception signal is divided into multiple ranges and the weight is calculated based on data with a weight applicable range excluded therefrom, but much calculation time is required. <P>SOLUTION: The target reflection signals of a radar pulse obtained by an array antenna 21 are received for detection by an excitation reception part 22. A correlation suppression filter is applied to the reception signals in a correlation suppression filter circuit 272 of a signal processing part 27, thereby to suppress components in a higher correlation with the target signals. A weight calculation circuit 275 acquires adaptive weight from data after the application of the correlation suppression filter. A beam composition circuit 276 performs weight control on the antenna reception signals by the adaptive weight and defines them as output data. <P>COPYRIGHT: (C)2012,JPO&INPIT |
