ADAPTIVE FILTER CIRCUIT HAVING LOW COMPLEXITY AND FLEXIBLE STRUCTURE AND DEVICE INCLUDING THE SAME

An adaptive filter circuit includes a plurality of filter cores associated with each other and configured to perform a calculation operation on a first target input signal, and an auxiliary core configured to generate cross-terms between block correlation matrices respectively corresponding to kernels that correspond to the first target input signal and provide the cross-terms to the plurality of filter cores, where the plurality of filter cores are further configured to estimate effective channels respectively corresponding to the kernels based on the cross-terms.