The digital filter 1 wherein for a particular time t, such that 1≦k≦L/2, said output of {TAIL ~ said merged filter bank} that changes between {HEAD ~ said previous time t} 1 and said current time t is given by: ##EQU50## wherein n and L are even and 1≦j≦.left brkt top.L/2.right brkt top. 
The digital filter 1 wherein for a particular time t , such that 1≦k≦L/2 , said output of { TAIL ~ said merged filter bank } that changes between { HEAD ~ said previous time t } 1 and said current time t is given by : # # EQU50 # # wherein n and L are even and 1≦j≦.left brkt top . L/2.right brkt top .
OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH TAIL TAIL TAIL TAIL TAIL TAIL TAIL TAIL OTH OTH OTH HEAD HEAD HEAD HEAD HEAD HEAD HEAD HEAD OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH