Title :
Quaternionic approach to 8-channel general paraunitary filter bank
Author :
Parfieniuk, Marek ; Petrovsky, Alexander
Author_Institution :
Dept. of Real-Time Syst., Bialystok Tech. Univ., Bialystok, Poland
Abstract :
This paper presents an alternative factorization for 8-channel general paraunitary filter bank. The utilization of quaternion multiplications leads to a lattice structure being lossless regardless of coefficient quantization. Other advantages are reduced memory requirements and good suitability for FPGA and VLSI implementations. The shown decompositions of 8 × 8 orthogonal matrices can find other applications unrelated to filter banks.
Keywords :
VLSI; channel bank filters; field programmable gate arrays; matrix decomposition; quantisation (signal); 8-channel general paraunitary filter bank; FPGA suitability; VLSI implementations; alternative factorization; coefficient quantization; lattice structure; memory requirement reduction; orthogonal matrix decomposition; quaternion multiplication utilization; quaternionic approach; Computational complexity; Filter banks; Lattices; Matrix converters; Matrix decomposition; Quantization (signal); Quaternions;
Conference_Titel :
Signal Processing Conference, 2005 13th European
Conference_Location :
Antalya
Print_ISBN :
978-160-4238-21-1
