Root MUSIC itself can not estimate the distance between a source and the
array since it assumes plane waves.

"Ra?l Gonz?lez" <tante_ju@teleline.es> wrote in message
news:1d807096.0403301040.45385d17@posting.google.com...
> Problems estimating frequencies from the Root-MUSIC algorithm.
> Starting from the noise & signal subspaces, I form the polynomies from the
> noise subspace. Then I choose
> the x roots closest to the unit circle (roots whose absolute values are
the
> closest to the unit circle)
> (being x the number of signal eigenvectors)
> Having the complexes roots I can calculate the DoA (direction of arrival)
> My question is: are there any way to estimate the distance the signal
> travelled from the emitter?
> Thanks for your cooperation,
> Ra&#4294967295;l

Problems estimating frequencies from the Root-MUSIC algorithm.
Starting from the noise & signal subspaces, I form the polynomies from the
noise subspace. Then I choose
the x roots closest to the unit circle (roots whose absolute values are the
closest to the unit circle)
(being x the number of signal eigenvectors)
Having the complexes roots I can calculate the DoA (direction of arrival)
My question is: are there any way to estimate the distance the signal
travelled from the emitter?
Thanks for your cooperation,
Ra�l