FIR to FIR Model Reduction with Linear Group Delay in Passband by SDP Optimization

Hu Haijiang; Song Shaojing; Zhang Fengdeng

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FIR to FIR Model Reduction with Linear Group Delay in Passband by SDP Optimization

机译：通过SDP优化将FIR模型减少与通带中的线性组延迟

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Filter model reduction is an important optimization method in digital signal processing. A method of FIR to FIR model reduction using SDP optimization is proposed in this paper. At first, we use SDP to design an original FIR filter. Then we name a general K-order FIR digital filter H-1(z(-1)) with coefficient values equal to the first K + 1 filter coefficient values of H-0(z(-1)). Finally, we design a new general K-order FIR digital filter H-2(z(-1)) connected in parallel with H-1(z(-1)) using SDP optimization. The experiment results show this method has good performance on the magnitude error and the linear phase in passband. Therefore, this method can be used in the field of digital signal processing.

机译：滤波器模型减少是数字信号处理中的重要优化方法。本文提出了一种使用SDP优化进行FIR模型减少的冷杉的方法。首先，我们使用SDP来设计原始的FIR滤波器。然后，我们将一般的K订购FIR数字滤波器H-1（z（-1））命名为与H-0的第一k + 1滤波器系数值等于H-0的系数值（Z（-1））。最后，我们使用SDP优化设计了与H-1（Z（-1）并联连接的新一般K订购FIR数字滤波器H-2（Z（-1））。实验结果显示该方法在通带中的幅度误差和线性相位上具有良好的性能。因此，该方法可用于数字信号处理领域。

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《Journal of electrical and computer engineering》 |2020年第1期|4503706.1-4503706.7|共7页
作者
Hu Haijiang; Song Shaojing; Zhang Fengdeng;
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Shanghai Polytech Univ Coll Engn Shanghai 201209 Peoples R China;

Shanghai Polytech Univ Coll Engn Shanghai 201209 Peoples R China;

Univ Shanghai Sci & Technol Sch Opt Elect & Comp Engn Shanghai 200093 Peoples R China;

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FIR to FIR Model Reduction with Linear Group Delay in Passband by SDP Optimization

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