| 摘要 |
A receiver and a method are applied in a wireless communication system for detecting interference with a coexisting radar system. A signal received from an antenna ( 100 ) is fed through an analog part ( 200 ) and a subsequent digital part ( 300 ) of said receiver. The receiver comprising an element ( 240, 260 ) with a-priori known attenuation values for a predefined set of frequencies, a first branch-off element ( 230, 252 ) for deriving a first detection signal (S 10, S 22 ) from the signal before said element ( 240, 260 ) and a second branch-off element ( 251, 270 ) for deriving a second detection signal (S 21, S 30, S 20 ) from the signal after said element ( 240, 260 ). Further, the receiver comprising processing means ( 400 ) for processing the first (S 10, S 22 ) and the second (S 21, S 30, S 20 ) detection signal such that a difference between the first (S 10, S 22 ) and second (S 21, S 30, S 20 ) detection signal is comparable with a threshold value, wherein the threshold value depends on the a-priori known attenuation values of the element ( 240, 260 ). Depending on the comparison result, a frequency is identified as interfering or not a co-existing radar system.
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