Most Filtered-XLMS-based AANC algorithms employ an error path model to filter the input reference signals.The effectiveness of AANC algorithm for practical applications suffers in general from the inaccuracy of error path modeling.After the effect of two different modeling methods on the convergence of FLMS algorithm is analyzed
a more accurate method of error path modeling of a practical AANC system is presented.The modeling results for practically measured data show the effectiveness of the proposed modeling method.