A FAST SEPARATION OF SPECTRA ALGORITHM FOR THE DESIGN OF 2-D CIRCULARLY SYMMETRIC DIGITAL FILTERS | ||||
| International Conference on Aerospace Sciences and Aviation Technology | ||||
| Article 98, Volume 1, A.S.A.T. CONFERENCE 14-16 May 1985 r CAIRO, May 1985, Page 1227-1236 PDF (1.73 MB) | ||||
| Document Type: Original Article | ||||
| DOI: 10.21608/asat.1985.26590 | ||||
 View on SCiNiTO | ||||
| Author | ||||
| ABD EL RAHMAN HANAFY ALY | ||||
| LT.COL., Ph..D,Department of Radar,Military Technical College,Cairo, Egypt. | ||||
| Abstract | ||||
| The separation of spectra algorithm contributes a simple technique for designing 2-D circularly symmetric digital filters. The calculation of the pole-,and zero-coefficients of a filter of order(pl,p201,q2) needs the solution of two systems of equations.Their soluion using Gauss el4mination method consumes 0(p2+ pl(l+p2)) + 0(q2+ ql(l+q2)) complex operations. For reducing the complexity of calculation,a 2-D Levinson al-gorithm is deduced and used for solving the two systems of equations, The complexity of calculation is reduced to 0(p2 +NN pl(l+p2)) + 0(q2+q1(1+q2)) -complex operation.The 2-D separation of spettra algorithm which employs the 2-D Levinson algorithm is simple,fast,robust,and efficient.Besides,it has been efficiently used for the design of different kinds of 2-D recursive digital filters. | ||||
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