UNTERSCHEIDUNG ZWISCHEN STATIONÄREN UND NICHT-STATIONÄREN SIGNALEN
摘要
Signal frames containing background sounds in a mobile radio communication system are tested for stationarity. Consecutive measures DELTA En representing spectral changes in said signals from frame to frame are formed. From these measures a second measure of the rate of spectral change are formed. Finally, it is determined whether this second measure exceeds a predetermined stationarity limit gamma . If this is the case the signals are considered stationary.
申请公布号
DE69416668(D1)
申请公布日期
1999.04.01
申请号
DE1994616668
申请日期
1994.10.19
申请人
TELEFONAKTIEBOLAGET L M ERICSSON, STOCKHOLM, SE
发明人
JANSSON, KLAS, FREDRIK, JANIS, S-172 37 SUNDBYBERG, SE