| 摘要: |
| 本文采用本地查找算法，根据不同的误差准则设计了一系列平方根升余弦滚降FIR滤波器，并且在基带传输系统中对FIR滤波器进行了性能仿真，得出了在对称度准则下设计的FIR滤波器具有较好的性能的结论。 |
| 关键词: 数字滤波器 平方根升余弦滚降 本地查找算法 奈奎斯特第一准则 基带传输系统 眼图 |
| DOI：10.3969/j.issn.1001-893X. |
| Revised:June 11, 2002 |
| 基金项目: |
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| Design of Square-root Raised Cosine FIR Digital Filters |
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| Abstract: |
| In this paper, a series of square-root-raised-cosine(SRRC) FIR filter with CSD coefficients are designed according to the local search algorithm based on two different error criteria. All the FIR filters are evaluated in a baseband system and the simulated results indicated that based on the symmetry error criteria the FIR filters introduce less noise and have better performance than the filters designed based on the MiniMax criteria. |
| Key words: Digital filter,Square-root raised cosine FIR filter,Local search algorithm,Nyquist criteria,Baseband system,Eye pattern, |
