Title :
Fast adaptive polynomial root tracking using a homotopy continuation method
Author :
Alexander, S.T. ; Stonick, V.L.
Author_Institution :
Electr. & Comput. Eng. Dept., North Carolina State Univ., Raleigh, NC, USA
Abstract :
A fast adaptive method for tracking the roots of a time-varying complex domain polynomial is derived. The approach uses the method of homotopy continuation and is efficient from both mathematical and implementation standpoints. The method is globally convergent and tracks all roots simultaneously. An example that verifies the accurate tracking ability of the algorithm is presented. Applications which could benefit from this method are also discussed.<>
Keywords :
adaptive filters; convergence of numerical methods; polynomials; root loci; time-varying systems; tracking; adaptive polynomial root tracking; homotopy continuation; time-varying complex domain polynomial; tracking ability;
Conference_Titel :
Acoustics, Speech, and Signal Processing, 1993. ICASSP-93., 1993 IEEE International Conference on
Conference_Location :
Minneapolis, MN, USA
Print_ISBN :
0-7803-7402-9
DOI :
10.1109/ICASSP.1993.319539