An Expectation-Maximization Approach to Spectral Structure Identification and Estimation
Abstract
The method of Expectation-Maximization is applied to find an approximate maximum-likelihood estimate of the amplitudes, phases and frequency shift of a known collection of spectral lines in a signal with Gaussian noise. The technique works well for many frequency components provided that these frequencies are well separated. It is applied to the identification of the frequencies present in a radar return from a propeller driven aircraft, arising from modulation by blades of the propellers.
Document Details
- Document Type
- Technical Report
- Publication Date
- Oct 01, 2001
- Accession Number
- ADA401234
Entities
People
- Alan Bolton
- Marian Viola
- William Moran
Organizations
- Defence Science and Technology Group