Title :
Estimation of Sinusoidal Frequencies and Amplitudes Using Adaptive Identifier and Observer
Author_Institution :
Dept. of Eng., Hull Univ.
fDate :
3/1/2007 12:00:00 AM
Abstract :
A simple method is proposed for estimation of amplitudes of multiple sinusoids. The estimation is based on the existing adaptive identifier which offers the globally convergent estimate of sinusoidal frequencies. To deal with possible singularities of the amplitude estimation, adaptive observers are also proposed for estimation of sinusoidal amplitudes. Simulations illustrate the results
Keywords :
amplitude estimation; convergence; observers; state-space methods; adaptive identifier; adaptive observer; amplitude estimation; globally convergent estimate; sinusoidal amplitude; sinusoidal frequencies; Amplitude estimation; Automatic control; Frequency estimation; Jacobian matrices; Kinematics; Manipulator dynamics; Output feedback; Robot control; Robotics and automation; Torque control; Adaptive identifier; adaptive observer; frequency and amplitude estimation; signal processing;
Journal_Title :
Automatic Control, IEEE Transactions on
DOI :
10.1109/TAC.2006.890389
