Title :
Digital matched filter of reduced operation elements for M-ary/DS-SS system using real-valued shift-orthogonal finite-length sequences
Author :
Matsumoto, Takahiro ; Tanada, Yoshihiro ; Watanabe, Takahiro
Author_Institution :
Dept. of Comput. Sci. & Syst. Eng., Yamaguchi Univ., Ube, Japan
Abstract :
A real-valued shift-orthogonal finite-length sequence has a sharp autocorrelation function with zero sidelobes except at shift ends, and can be synthesized by element sequences. We propose the structure of a digital matched filter for M-ary direct sequence spread spectrum (M-ary/DS-SS) system using the sequences and the reduction of operation elements of the digital matched filter. It is shown that this digital matched filter for M-ary/DS-SS systems can be constructed by multipliers and adders proportional to sequence length
Keywords :
adders; binary sequences; correlation theory; digital filters; matched filters; spread spectrum communication; M-ary/DS-SS system; adders; autocorrelation function; digital matched filter; direct sequence spread spectrum; finite-length sequences; multipliers; real-valued sequences; reduced operation elements; sequence length; shift-orthogonal sequences; Adders; Autocorrelation; Computer science; Digital integrated circuits; Field programmable gate arrays; Frequency; Large-scale systems; Matched filters; Spread spectrum communication; Systems engineering and theory;
Conference_Titel :
Wireless Communications, 2001. (SPAWC '01). 2001 IEEE Third Workshop on Signal Processing Advances in
Conference_Location :
Taiwan
Print_ISBN :
0-7803-6720-0
DOI :
10.1109/SPAWC.2001.923839
