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 |
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