Title :
Structure and frequency adaptation of the recursive adaptive Fourier analyzer based on the Walsh-Hadamard transformation
Author :
Benedecsik, Csaba ; Kóczy, Annamária R Várkonyi
Author_Institution :
Dept. of Meas. & Inf. Syst., Budapest Univ. of Technol. & Econ., Hungary
Abstract :
The measurement of a periodic signal with an unknown basic frequency can be done well with an adaptive Fourier analyzer. This paper presents first a further development of the transform domain adaptive Fourier analyzer, based on the Walsh Hadamard transform, which requires less computation. The frequency determination methods are also studied and a new method is proposed
Keywords :
Fourier analysis; Hadamard transforms; Walsh functions; adaptive signal processing; Walsh-Hadamard transformation; frequency adaptation; frequency determination methods; periodic signal; recursive adaptive Fourier analyzer; Adaptive control; Fast Fourier transforms; Fourier transforms; Frequency measurement; Programmable control; Signal analysis; Signal processing; Signal sampling; Time domain analysis; Vibration measurement;
Conference_Titel :
Instrumentation and Measurement Technology Conference, 2001. IMTC 2001. Proceedings of the 18th IEEE
Conference_Location :
Budapest
Print_ISBN :
0-7803-6646-8
DOI :
10.1109/IMTC.2001.928259
