本文選題：FIR數(shù)字濾波器　切入點(diǎn)：外推沖激響應(yīng)　出處：《電子技術(shù)應(yīng)用》2017年05期 　論文類型：期刊論文

【摘要】：外推補(bǔ)償技術(shù)利用FIR濾波器沖激響應(yīng)的準(zhǔn)周期特性進(jìn)行系數(shù)外推,并將近似誤差補(bǔ)償回去,從而有效降低了多常系數(shù)乘法的復(fù)雜度,但延時(shí)鏈的增加是其固有特性,3種改進(jìn)結(jié)構(gòu)通過改變延時(shí)鏈位置來(lái)減小其位寬。綜合結(jié)果表明,改變輸入端延時(shí)鏈位置的改進(jìn)結(jié)構(gòu)能夠進(jìn)一步降低FIR濾波器的硬件實(shí)現(xiàn)成本,具有較好的實(shí)用性。
[Abstract]:The extrapolation compensation technique makes use of the quasi-periodic characteristic of impulse response of FIR filter to extrapolate the coefficients and compensate the approximate error back, thus effectively reducing the complexity of multiplying multiple constant coefficients. But the increase of delay chain is its inherent characteristic and three kinds of improved structures can reduce the bit width by changing the position of delay chain. The synthesis results show that the improved structure can further reduce the hardware implementation cost of FIR filter by changing the position of the delay chain at the input end. It has good practicability.
【作者單位】： 浙江工業(yè)大學(xué)信息工程學(xué)院;杭州國(guó)芯科技股份有限公司;浙江財(cái)經(jīng)大學(xué)信息學(xué)院;
【分類號(hào)】：TN713
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本文編號(hào)：1563899