Name
Abstract | ||
|---|---|---|
Overlap-save (OLS) and overlap-add (OLA) are two techniques widely used in digital filtering. In traditional OLS and OLA implementations, the system is compelled to be time-invariant and conventional filter synthesis techniques are used for designing the block filter. In this paper, based on the OLS and the OLA structures, we develop a fast algorithm for designing the optimal OLS and OLA block filters using a quadratic criterion. Comparing OLA to OLS optimal design, we demonstrate that, as in classical design approaches, they show no difference when the filters are time-invariant. However, when aliasing is not zero, although the global aliasing is the same, its components with respect to frequency are different. This conclusion is supported by simulation results, and a comparison between the optimal approach and some other standard approaches is also provided. |
Year | DOI | Venue |
|---|---|---|
2010 | 10.1109/TSP.2010.2044260 | IEEE Transactions on Signal Processing |
Keywords | Field | DocType |
digital filters,filtering theory,block filters,conventional filter synthesis techniques,digital filtering,overlap-add filters,overlap-save filters,time-invariant filter synthesis techniques,Aliasing,block digital filters,circulant matrices,digital filter design,overlap-save/add,time-invariant systems | Signal processing,Mathematical optimization,Algorithm design,Digital filter,Control theory,Filter (signal processing),Optimal design,Aliasing,Fast Fourier transform,Overlap–add method,Mathematics | Journal |
Volume | Issue | ISSN |
58 | 6 | 1053-587X |
Citations | PageRank | References |
9 | 0.77 | 3 |
Authors | ||
4 | ||
Name | Order | Citations | PageRank |
|---|---|---|---|
| Daher, A. | 1 | 9 | 1.11 |
| E. H. Baghious | 2 | 14 | 3.21 |
| G. Burel | 3 | 111 | 8.71 |
| Emanuel Radoi | 4 | 79 | 15.62 |