... CorporationEURASIP Journal on Advances in Signal ProcessingVolume 2011, Article ID 231754, 7 pagesdoi:10.1155/2011/231754 Research Article A Study on Conjugate Quadrature FiltersJin-Song Leng, Ting-Zhu ... −9√62⎤⎥⎦,P3=120⎡⎢⎣009√22−9√62⎤⎥⎦,P4=120⎡⎢⎣00−√22√62⎤⎥⎦.(37)The scaling functions generated by the lengh-5 low-passfilter are shown in Figure 1.In signal processing, an original signal is decomposed by the low-pass filters and the high-pass filters ... 1,(2)where{Pk}k∈Zand {Ql,k}k∈Z, l = 1, 2, , a − 1arer × rmatrix sequences. The sequence{Pk}k∈Zis called low-passfilter, and the sequences {Ql,k}k∈Z, l = 1, 2, , a − 1arecalled high-pass...