兩通道低延遲濾波器組的設計
Design of Two-Channel Low Delay Filter Banks
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摘要: 本文提出了一種用有效的迭代拉格朗日乘子法設計精確重構的兩通道低延遲濾波器組.該方法具有較高的計算效率,既能設計不同長度也能設計相同長度的濾波器組.文中給出了設計例子并與其它方法進行了比較.結果表明,用該方法設計的兩通道低延遲濾波器組具有更高的阻帶衰減.
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關鍵詞:
- 濾波器組;低延遲;精確重構
Abstract: An efficient iterative lagrange multiplier approach is proposed for the design two-channel low delay perfect reconstruction filter banks. This approach has high design efficiency and can be used to design both equal-length and unequal-length filter banks. A design example is presented and compared with other methods. It can be shown that two-channel perfect reconstruction linear phase filter banks with higher stopband attenuation can be obtained using the new method. -
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