Title :
A novel method for estimation of model parameters for noise-corrupted signals
Author :
Hetzheim, Hartwig
Author_Institution :
Inst. of Space Sensor Technol., German Aerosp. Centre, Berlin, Germany
Abstract :
Often measured data are produced by an integration process over many layers, whereas the parameter values in every layer are of interest. The data are corrupted by noise. The estimation of the model parameters, if only the summed measured data and their relationships to the parameters (forward model) are known, is an inverse problem. The paper shows how coupled integrals near an a priori known situation can be summed up by an operator representation. A method is shown to calculate the probability density function for model parameter estimation. The obtained expectation value with the algebraic dependence of the parameters is related to the measured value and solves the inverse problem
Keywords :
integral equations; inverse problems; mathematical operators; parameter estimation; probability; signal detection; signal representation; algebraic dependence; coupled integrals; expectation value; inverse problem; model parameter estimation; noise-corrupted signals; operator representation; probability density function; summed measured data; Differential equations; Extraterrestrial measurements; Geophysical measurements; Inverse problems; Noise measurement; Parameter estimation; Probability density function; Seismic measurements; Signal processing; Space technology;
Conference_Titel :
Signal Processing Proceedings, 1998. ICSP '98. 1998 Fourth International Conference on
Conference_Location :
Beijing
Print_ISBN :
0-7803-4325-5
DOI :
10.1109/ICOSP.1998.770174