基于Laguerre滤波器等价设计的IIR宽带波束形成
发布时间：2018-07-17 19:24
【摘要】：常规IIR宽带波束形成器可以获得比FIR宽带波束形成器更好的性能,但其需要多极点的自适应调整过程,存在稳定性无法保证,计算复杂度较高等问题.本文提出一种新的基于IIR滤波器的宽带波束形成算法.该算法基于高阶Laguerre宽带波束形成器,利用双线性变换和函数束方法设计相应的低阶等价IIR宽带波束形成器.仿真实验及理论分析表明,该方法无需常规IIR宽带波束形成器的多极点自适应调整过程,在保证算法稳定性的同时,减少了计算复杂度,并提高了输出信干噪比(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.
【作者单位】： 信息工程大学导航与空天目标工程学院;72495部队通信科;
【基金】：国家自然科学基金(No.41301481) 国家863高技术研究发展计划(No.2013AA7031015)
【分类号】：TN911.7;TN713
本文编号：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.
【作者单位】： 信息工程大学导航与空天目标工程学院;72495部队通信科;
【基金】：国家自然科学基金(No.41301481) 国家863高技术研究发展计划(No.2013AA7031015)
【分类号】：TN911.7;TN713
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