Research Article

Design of Finite Word Length Linear-Phase FIR Filters in the Logarithmic Number System Domain

Table 4

Comparison of variable selection schemes 1, 3, and 4.

Spec. Filter length Scheme Nodes

4 20
1 250
3 178
4 96

4 20
1 4056864
3 1150
4 84

6 20
1 1948
3 2128
4 1982

6 20
1 1948
3 2128
4 1982

3 34
1 690
3 962
4 1442

3 34
1 305490
3 4880
4 4694

1 64
1 30704
3 8986
4 10240