DIGITAL SIGNAL PROCESSING SYSTEM AND DESIGN METHOD THEREOF

摘要

A digital signal processing system and its design method are disclosed. The digital signal processing system is a digital differentiator with a frequency response coefficient h_m and a frequency response function H^(K)(w), where; $$ H^{\left(K\right)}\left(w\right)\mathrm{is}\mathrm{one}\mathrm{of}\{\begin{array}{c}-{\mathrm{jw}}^K,0\&\#x2264;w\pi \\ {\mathrm{jw}}^K,-\pi \&\#x2264;w\&\#x2264;0\end{array},\{\begin{array}{c}{\mathrm{jw}}^K,0\&\#x2264;w\pi \\ -{\mathrm{jw}}^K,-\pi \&\#x2264;w\&\#x2264;0\end{array},-w^K,-\pi \&\#x2264;w\pi ,\mathrm{and}\{\begin{array}{c}{\mathrm{jw}}^K,0\&\#x2264;w\pi \\ -{\mathrm{jw}}^K,-\pi \&\#x2264;w\&\#x2264;0\end{array},$$ ;or combination thereof, where m of h_m has a range 0≤m≤M−1 and M is the sampling point quantity.