Parameter estimation of superimposed signals using the EM algorithm

1 April 1988

journal article
Published by Institute of Electrical and Electronics Engineers (IEEE) in IEEE Transactions on Acoustics, Speech, and Signal Processing

Vol. 36 (4) , 477-489
https://doi.org/10.1109/29.1552

Abstract

We develop a computationally efficient algorithm for pa- rameter estimation of superimposed signals based on the EM algo- rithm. The idea is to decompose the observed data into their signal components and then to estimate the parameters of each signal com- ponent separately. The algorithm iterates back and forth, using the current parameter estimates to decompose the observed data better and thus increase the likelihood of the next parameter estimates. The application of the algorithm to the multipath time delay and to the multiple source location estimation problems is considered.

Keywords

This publication has 10 references indexed in Scilit:

Multipath and multiple source array processing via the EM algorithm
Published by Institute of Electrical and Electronics Engineers (IEEE) ,2005
Optimal multiple source location estimation via the EM algorithm
Published by Institute of Electrical and Electronics Engineers (IEEE) ,2005
Detection of signals by information theoretic criteria
IEEE Transactions on Acoustics, Speech, and Signal Processing, 1985
Estimation of time differences of arrival by pole decomposition
IEEE Transactions on Acoustics, Speech, and Signal Processing, 1983
Estimation of spatial and spectral parameters of multiple sources
IEEE Transactions on Information Theory, 1983
On the Convergence Properties of the EM Algorithm
The Annals of Statistics, 1983
Superresolution of uncorrelated interference sources by using adaptive array techniques
IEEE Transactions on Antennas and Propagation, 1979
Multiple Source Location-A Digital Approach
IEEE Transactions on Aerospace and Electronic Systems, 1979
Signal-processing techniques for resolving individual pulses in a multipath signal
The Journal of the Acoustical Society of America, 1978
All-pole modeling of degraded speech
IEEE Transactions on Acoustics, Speech, and Signal Processing, 1978