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The use of frequency-orthogonal pseudo-noise (FOPN) sounding signals for identifying transmissions from different transmit antennas

Dahman, Ghassan LU ; Bultitude, Robert and Hafez, Roshdy (2009) In IEEE Antennas and Wireless Propagation Letters 8. p.657-660
Abstract
A method is described for identifying simultaneous signals from different transmit antennas in multiantenna sounders. Multiple-orthogonal signals are produced from one pseudonoise code by using it to modulate RF carriers at precalculated offset frequencies. Although their frequency spectra are interleaved and they occupy the same band, the spectral lines from different transmitters are separable after Fourier transformation at the receiver output. Since there is a one-to-one relationship between the length of the signal required for Fourier analysis and the number of orthogonal sounding signals, any arbitrary number of such signals can be generated, but Doppler spreads limit the number that can be employed with acceptable isolation among... (More)
A method is described for identifying simultaneous signals from different transmit antennas in multiantenna sounders. Multiple-orthogonal signals are produced from one pseudonoise code by using it to modulate RF carriers at precalculated offset frequencies. Although their frequency spectra are interleaved and they occupy the same band, the spectral lines from different transmitters are separable after Fourier transformation at the receiver output. Since there is a one-to-one relationship between the length of the signal required for Fourier analysis and the number of orthogonal sounding signals, any arbitrary number of such signals can be generated, but Doppler spreads limit the number that can be employed with acceptable isolation among them. (Less)
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author
publishing date
type
Contribution to journal
publication status
published
subject
in
IEEE Antennas and Wireless Propagation Letters
volume
8
pages
657 - 660
publisher
IEEE--Institute of Electrical and Electronics Engineers Inc.
external identifiers
  • scopus:77956223461
ISSN
1548-5757
DOI
10.1109/LAWP.2009.2021170
language
English
LU publication?
no
id
b0a85922-f306-43f7-a202-5f57e5c75f20 (old id 3130690)
date added to LUP
2012-10-18 13:56:21
date last changed
2017-10-08 04:31:33
@article{b0a85922-f306-43f7-a202-5f57e5c75f20,
  abstract     = {A method is described for identifying simultaneous signals from different transmit antennas in multiantenna sounders. Multiple-orthogonal signals are produced from one pseudonoise code by using it to modulate RF carriers at precalculated offset frequencies. Although their frequency spectra are interleaved and they occupy the same band, the spectral lines from different transmitters are separable after Fourier transformation at the receiver output. Since there is a one-to-one relationship between the length of the signal required for Fourier analysis and the number of orthogonal sounding signals, any arbitrary number of such signals can be generated, but Doppler spreads limit the number that can be employed with acceptable isolation among them.},
  author       = {Dahman, Ghassan and Bultitude, Robert and Hafez, Roshdy},
  issn         = {1548-5757},
  language     = {eng},
  pages        = {657--660},
  publisher    = {IEEE--Institute of Electrical and Electronics Engineers Inc.},
  series       = {IEEE Antennas and Wireless Propagation Letters},
  title        = {The use of frequency-orthogonal pseudo-noise (FOPN) sounding signals for identifying transmissions from different transmit antennas},
  url          = {http://dx.doi.org/10.1109/LAWP.2009.2021170},
  volume       = {8},
  year         = {2009},
}