An FIR filter as pre-emphasis has been used to counteract intersymbol interference (ISI) in high-speed backplane data transmission. A MATLAB program has been developed for optimisation of the FIR filter under LMS criterion. Both a symbol-spaced FIR (SSF) filter and fractionally spaced FIR (FSF) filter are comparatively studied. The determination of tap number and preference of FSF to SSF are discussed.
Electronics Letters
Department of Electronics

Li, M., Wang, S., Tao, Y., & Kwasniewski, T. (2004). FIR filter optimisation as pre-emphasis of high-speed backplane data transmission. Electronics Letters, 40(14), 912–913. doi:10.1049/el:20040567