| 摘要 |
PURPOSE:To obtain a filter having an asymmetrical polygonal impulse response to an h(i) axis and possible for high speed processing by realizing a filter having decomposed triangular impulse responses and overlapping them. CONSTITUTION:An input signal is inputted to a filtering pre-processing means 16, 17, 18, where the filtering is processed by the triangular impulse response, a prescribed weighting is applied to the result of processing, the outputs are superimposed by a filtering post-processing section 19 so as to realize a linear digital filtering device possible for high speed filtering processing and having the ansymmetrical polygonal impulse response to the h(i) axis. |
