AnEfficient Subband MethodforWideband
Longyang Huang, Mengxing Li · 2008
An efficient subbandadaptive beamformer with perfect reconstruction general parameter filter banks(GPFB) forwideband arrayantenna isproposed inthis paper, whichis usedtoenhance performance ofsuppressing theinterference and accelerate convergence speedofweights. Insteadofthe conventional FFTfilter banks, GPFBareutilized topartition the frequency bandintoseveral subbands without aliasing between them.WithSubbands running atdownsampling andinmanner ofparallel, theloadsofcomputational processing costs, compared withtraditional fullband methods, canbealleviated. Deepsuppression oftheinterference andconvergence speedof weights arealsoimproved.