基于Laguerre濾波器等價(jià)設(shè)計(jì)的IIR寬帶波束形成
發(fā)布時(shí)間:2018-07-17 19:24
【摘要】:常規(guī)IIR寬帶波束形成器可以獲得比FIR寬帶波束形成器更好的性能,但其需要多極點(diǎn)的自適應(yīng)調(diào)整過程,存在穩(wěn)定性無(wú)法保證,計(jì)算復(fù)雜度較高等問題.本文提出一種新的基于IIR濾波器的寬帶波束形成算法.該算法基于高階Laguerre寬帶波束形成器,利用雙線性變換和函數(shù)束方法設(shè)計(jì)相應(yīng)的低階等價(jià)IIR寬帶波束形成器.仿真實(shí)驗(yàn)及理論分析表明,該方法無(wú)需常規(guī)IIR寬帶波束形成器的多極點(diǎn)自適應(yīng)調(diào)整過程,在保證算法穩(wěn)定性的同時(shí),減少了計(jì)算復(fù)雜度,并提高了輸出信干噪比(SINR).
[Abstract]:Conventional IIR wideband beamformer can obtain better performance than Fir wideband beamformer, but it needs multi-pole adaptive adjustment process, which has many problems such as stability can not be guaranteed and computational complexity is high. In this paper, a new wideband beamforming algorithm based on IIR filter is proposed. Based on high-order Laguerre wideband beamformer, a low-order equivalent IIR wideband beamformer is designed using bilinear transformation and function beam method. Simulation experiments and theoretical analysis show that the proposed method does not need the multi-pole adaptive adjustment process of conventional IIR wideband beamformer, and reduces the computational complexity and improves the output signal-to-noise ratio (SINR) while ensuring the stability of the algorithm.
【作者單位】: 信息工程大學(xué)導(dǎo)航與空天目標(biāo)工程學(xué)院;72495部隊(duì)通信科;
【基金】:國(guó)家自然科學(xué)基金(No.41301481) 國(guó)家863高技術(shù)研究發(fā)展計(jì)劃(No.2013AA7031015)
【分類號(hào)】:TN911.7;TN713
本文編號(hào):2130685
[Abstract]:Conventional IIR wideband beamformer can obtain better performance than Fir wideband beamformer, but it needs multi-pole adaptive adjustment process, which has many problems such as stability can not be guaranteed and computational complexity is high. In this paper, a new wideband beamforming algorithm based on IIR filter is proposed. Based on high-order Laguerre wideband beamformer, a low-order equivalent IIR wideband beamformer is designed using bilinear transformation and function beam method. Simulation experiments and theoretical analysis show that the proposed method does not need the multi-pole adaptive adjustment process of conventional IIR wideband beamformer, and reduces the computational complexity and improves the output signal-to-noise ratio (SINR) while ensuring the stability of the algorithm.
【作者單位】: 信息工程大學(xué)導(dǎo)航與空天目標(biāo)工程學(xué)院;72495部隊(duì)通信科;
【基金】:國(guó)家自然科學(xué)基金(No.41301481) 國(guó)家863高技術(shù)研究發(fā)展計(jì)劃(No.2013AA7031015)
【分類號(hào)】:TN911.7;TN713
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