Research Article
Low-Cost Design of an FIR Filter by Using a Coefficient Mapping Method
Table 1
New coefficients after performing the mapping method (
,
).
| | Group | Sign | Coefficient | Error rate (%) | | , (original coefficient) | , (new coefficient) |
| | | | | | | − | 829 | 832 () | 0.36 | | − | 1120 | 1120 () | 0.00 | | − | 1172 | 1184 () | 1.01 | | − | 548 | 544 () | 0.74 | | + | 708 | 704 () | 0.57 | | + | 2128 | 2144 () | 0.75 | | + | 2982 | 2976 () | 0.20 | | + | 2684 | 2688 () | 0.15 | | + | 1215 | 1216 () | 0.08 | | | | | | | − | 721 | 832 () | 13.3 | | − | 1990 | 1960 () | 1.53 | | − | 1677 | 1776 () | 5.57 | | + | 258 | 272 () | 5.15 | | + | 2765 | 2816 () | 1.81 | | + | 4157 | 4288 () | 3.06 | | + | 3098 | 2976 () | 4.10 | | − | 421 | 672 () | 37.4 | | − | 4560 | 4560 () | 3.09 |
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