Title :
Phase approximation by divide-and-conquer piecewise linear fitting of gain
Author :
Grama, Lãcrimioara ; Rusu, Corneliu
Author_Institution :
Fac. of Electron., Telecommun. & Inf. Technol., Tech. Univ. of Cluj-Napoca, Cluj-Napoca, Romania
Abstract :
Having a piecewise linear fitting of gain, one can obtain a good approximation of phase. There are few ways to determine the slopes of a broken line approximation, but the most popular approaches need the breakpoints. In this paper we determine the breakpoints using a divide and conquer approach. Results of piecewise linear approximation of gain and of the resulting phase approximation are provided for different cases.
Keywords :
Bode diagrams; Hilbert transforms; divide and conquer methods; gain control; piecewise linear techniques; broken line approximation; divide-and-conquer piecewise linear fitting; gain phase approximation; Approximation methods; Circuit theory; Communication system control; Discrete transforms; Fourier transforms; Frequency; Gain; Information technology; Piecewise linear approximation; Piecewise linear techniques;
Conference_Titel :
Signals, Circuits and Systems, 2009. ISSCS 2009. International Symposium on
Conference_Location :
Iasi
Print_ISBN :
978-1-4244-3785-6
Electronic_ISBN :
978-1-4244-3786-3
DOI :
10.1109/ISSCS.2009.5206103
