CAJ | 학술논문

为降低仿射投影算法的计算复杂度，提出了一种基于Mmax局部迭代策略的算法。首先根据权系数局部迭代的简化原理，将滤波器系数分成多个系数子集，通过每次迭代仅更新权系数部分子集的方法，减少算法的计算量。仿真结果表明，由于每次迭代将对误差性能贡献最大的输入信号筛选出来作为输入，Mmax系数局部迭代仿射投影算法性能与全系数更新算法相当。
위강저방사투영산법적계산복잡도，제출료일충기우Mmax국부질대책략적산법。수선근거권계수국부질대적간화원리，장려파기계수분성다개계수자집，통과매차질대부경신권계수부분자집적방법，감소산법적계산량。방진결과표명，유우매차질대장대오차성능공헌최대적수입신호사선출래작위수입，Mmax계수국부질대방사투영산법성능여전계수경신산법상당。
To deal with this obstacle that the large number of filter coefficients diminishes the usefulness of the adaptive filtering algorithm owing to increased complexity,some partial-update adaptive signal processing algorithms have been sum-marized.These algorithms focus on updating a selected subset of the filter coefficients at every iteration because the com-putational complexity is proportional to the number of filter coefficients.Simulation results verify the algorithm with partial up-dating can further reduce the computational complexity when compared with their conventional counterparts.