| 摘要 |
<P>PROBLEM TO BE SOLVED: To provide a radio station direction estimating/radio wave emitting apparatus for searching the direction of arrival of an emission source of radio waves, and electronically forming transmission directivity for the direction of arrival of the emission source of radio wave, in order to emit radio waves. <P>SOLUTION: The apparatus is provided with a reception array antenna 1 for receiving a target radio wave, frequency-searching means 2 for searching the frequency of the target radio wave from an output of the antenna 1, radio wave arrival direction estimating means 3 for estimating the direction of arrival of the radio waves from an output of the means 2, beam forming 4 for electronically forming the directivity on the direction of the emission source of the radio waves from an output of the means 3, transmission radio wave emitting means 5, and transmission array antenna 6 for transmitting prescribed radio waves to the target emission source of radio waves. In this way, for example, illegal radio waves can be captured and a warning radio wave can be emitted to the emission source of the unauthorized radio waves. <P>COPYRIGHT: (C)2004,JPO |
