A quick method for estimation of parameters of individual pulses in a multipath signal

摘要

Consider a multipath signal whose individual signals are deterministic known increasing or decreasing pulses. The problem is to estimate the amplitudes and delay times of individual signals. Several methods have been devoted to the solution of these unknown parameters. The maximum likelihood (ML) estimation and the estimate maximize (EM) algorithm are commonly used, but they are computationally intensive and still insufficient to obtain accurate estimations. The method can provide a quick and accurate estimate of the amplitudes and arrival (delay) times, even in the closely spaced multipaths and heavy noise.