Novel signal reproduction technique for improvement of UMTS/WCDMA communication jamming
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This paper presents a novel technique for UMTS/WCDMA communication jamming, in which the jamming signal is obtained by reproduction of received signal. The received radio-frequency signal is digitized, delayed, and converted to radio-frequency signal for transmission. The method is implemented and the field-test results demonstrate better performance when compared with the conventional frequency sweeping method. We obtain the effective jamming distance up to 100 m, while the conventional method is effective only for distance shorter than 20 m, under the same testing condition.
KeywordsWCDMA UMTS Jammer
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