Minimum-phase impulse response channels | IEEE Journals & Magazine | IEEE Xplore

Minimum-phase impulse response channels


Abstract:

We give a sufficient condition that insures that the impulse response of a channel is of minimum phase. The condition is that the energy of the first path be larger than ...Show More

Abstract:

We give a sufficient condition that insures that the impulse response of a channel is of minimum phase. The condition is that the energy of the first path be larger than the power spectral density of all subsequent paths. Establishing a lower bound to the first path energy, this condition is more likely to be met if transmitter and receiver are in line-of-sight. Our results show that the Hilbert transform may give unreliable results, if used to extract the channel phase response from frequency-resolved amplitude measurements when the first path is strongly attenuated.
Published in: IEEE Transactions on Communications ( Volume: 57, Issue: 12, December 2009)
Page(s): 3529 - 3532
Date of Publication: 11 December 2009

ISSN Information:


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