We present the numerical computation of bounds of a well- known mathematical quantity known as Sructured Singular Value (SSV) for anti-aliasing filter. The computation of SSV provides the bounds which estimates the behavior of linear input-output system in control. The proposed methodology is based on two level algorithm, that is, inner-outer algorithm. The numerical experimentation shows the com- parison of obtained results for SSV lower bounds when compare with MATLAB routine mussv.