Title :
Measurement of signal parameters by using nonlinear observers
Author_Institution :
Dept. of Meas. & Instrum. Eng., Tech. Univ. of Budapest, Hungary
Abstract :
A method to design absolutely stable observers for multiple-output time-varying free nonlinear dynamical systems is presented. This method can be used to measure even those signal parameters that are nonlinear functions of the observations. An adaptive Fourier analyzer has been designed by using the proposed method. Simulation and realization results of this observer are provided
Keywords :
Fourier analysis; adaptive systems; digital simulation; estimation theory; nonlinear systems; signal detection; signal generators; signal processing; state estimation; time-varying systems; adaptive Fourier analyzer; multiple-output time-varying free nonlinear dynamical systems; nonlinear functions; nonlinear observers; signal parameters; state estimation; Design engineering; Design methodology; Frequency; Instruments; Nonlinear dynamical systems; Nonlinear equations; Observers; Parameter estimation; Spectral analysis; Time varying systems;
Conference_Titel :
Instrumentation and Measurement Technology Conference, 1991. IMTC-91. Conference Record., 8th IEEE
Conference_Location :
Atlanta, GA
Print_ISBN :
0-87942-579-2
DOI :
10.1109/IMTC.1991.161613
