The updateable coefficients are calculated in {HEAD ~ a storage efficient manner} to effectively estimate {TAIL ~ a desirable channel response} 
to effectively estimate
The updateable coefficients are calculated in { HEAD ~ a storage efficient manner } to effectively estimate { TAIL ~ a desirable channel response }
OTH OTH OTH OTH OTH OTH HEAD HEAD HEAD HEAD HEAD HEAD HEAD HEAD REL REL REL TAIL TAIL TAIL TAIL TAIL TAIL TAIL TAIL