Maximum likelihood signal parameter estimation via track before detect

Murat Uney, Bernie Mulgrew, Daniel Clark

Research output: Chapter in Book/Report/Conference proceedingConference contribution

Abstract / Description of output

In this work, we consider the front-end processing for an active sensor. We are interested in estimating signal amplitude and noise power based on the outputs from filters that match transmitted waveforms in different ranges and bearing angles. These parameters identify the distributions in, for example, likelihood ratio tests used by detection algorithms and characterise the probability of detection and false alarm rates. Because they are observed through measurements induced by a (hidden) target process, the associated parameter likelihood has a time recursive structure which involves estimation of the target state based on the filter outputs. We use a track-before-detect scheme for maintaining a Bernoulli target model and updating the parameter likelihood. We use a maximum likelihood strategy and demonstrate the efficacy of the proposed approach through an example.
Original languageEnglish
Title of host publicationProceedings of the Sensor Signal Processing for Defence Conference, 2015
Number of pages5
Publication statusAccepted/In press - 9 Sept 2015


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