Overview on NBI Suppression of DSSS/CDMA Systems
Manhong Lu · Dianzi xuebao · 2009
As a common co-channel interference overlapping on spread spectrum,the effect of Narrow-Band Interference(NBI)could not be neglectable.Although spread spectrum systems could suppress NBI themselves to a certain extent,the effective rejection techniques used for NBI suppression would enhance the performance greatly.Over the past 30 years,the focus of NBI suppression has shifted from the single-user Direct Sequence Spread Spectrum(DSSS)systems to the multi-user Code-Division Multiple-Access(CDMA)systems.From the aspects of prediction,transform domain and Code-Aided techniques,this paper provides tutorial overview of current status,category comparison and development trend on NBI suppression of DSSS and CDMA systems.