Kosuke Tarumi Akihiko Hyodo Masanori Muroyama Hiroto Yasuura Bitwidth Optimization for Low Power Digital FIR Filter Design. 869-875 2005 88-A IEICE Transactions 4 http://dx.doi.org/10.1093/ietfec/e88-a.4.869 db/journals/ieicet/ieicet88a.html#TarumiHMY05