公开(公告)号：EP1269639B1

公开(公告)日：2007-05-30

申请号：EP01924805.3

申请日：2001-04-06

申请人： ISCO International, Inc.

发明人： JAGGER, Charles, E. ,  WILLETS, Mark, N. ,  TOBIA, Micolino

IPC分类号： H04B1/00

CPC分类号： H04W72/082 ,  H04B1/10 ,  H04B1/1036 ,  H04B1/71 ,  H04B1/7103 ,  H04B7/005 ,  H04B15/00 ,  H04B2001/1063 ,  H04B2201/709709 ,  H04B2201/709718 ,  H04W24/00 ,  H04W24/02 ,  H04W24/04 ,  H04W24/08 ,  H04W24/10 ,  H04W28/04 ,  H04W28/16 ,  H04W28/20 ,  H04W52/243 ,  H04W52/245 ,  H04W72/0453 ,  H04W72/085 ,  H04W88/02 ,  H04W88/08

摘要： An adaptive notch filter (ANF) module selectively filters a received wideband communication signal to eliminate narrowband interference that lies within the frequency spectrum of the wideband communication signal. To determine the presence of narrowband interference, the ANF module scans various known narrowband channels that lie within the frequency spectrum of the wideband communication signal and determines signal strengths for each of the narrowband channels. The signal strengths from the narrowband channels are compared to a threshold that is derived from the narrowband signal strengths. Narrowband channels having signal strengths that are greater than the threshold are determined to have interference.

公开(公告)号：EP1269639A2

公开(公告)日：2003-01-02

申请号：EP01924805.3

申请日：2001-04-06

申请人： ISCO International, Inc.

发明人： JAGGER, Charles, E. ,  WILLETS, Mark, N. ,  TOBIA, Micolino

IPC分类号： H04B1/00

CPC分类号： H04W72/082 ,  H04B1/10 ,  H04B1/1036 ,  H04B1/71 ,  H04B1/7103 ,  H04B7/005 ,  H04B15/00 ,  H04B2001/1063 ,  H04B2201/709709 ,  H04B2201/709718 ,  H04W24/00 ,  H04W24/02 ,  H04W24/04 ,  H04W24/08 ,  H04W24/10 ,  H04W28/04 ,  H04W28/16 ,  H04W28/20 ,  H04W52/243 ,  H04W52/245 ,  H04W72/0453 ,  H04W72/085 ,  H04W88/02 ,  H04W88/08

摘要： An adaptive notch filter (ANF) module selectively filters a received wideband communication signal to eliminate narrowband interference that lies within the frequency spectrum of the wideband communication signal. To determine the presence of narrowband interference, the ANF module scans various known narrowband channels that lie within the frequency spectrum of the wideband communication signal and determines signal strengths for each of the narrowband channels. The signal strengths from the narrowband channels are compared to a threshold that is derived from the narrowband signal strengths. Narrowband channels having signal strengths that are greater than the threshold are determined to have interference.