The original paper is in English. Non-English content has been machine-translated and may contain typographical errors or mistranslations. ex. Some numerals are expressed as "XNUMX".
Copyrights notice
The original paper is in English. Non-English content has been machine-translated and may contain typographical errors or mistranslations. Copyrights notice
Makalah ini mencadangkan teknik pembunyian saluran spatio-temporal jalur lebar ultra lebar menggunakan penjelmaan antara isyarat frekuensi dan domain masa (FD dan TD). Tatasusunan antena maya, terdiri daripada antena omnidirectional dan pengimbas, digunakan untuk penghantaran dan penerimaan dalam FD. Selepas Fourier menukar isyarat FD yang diterima kepada isyarat TD, masa ketibaan (TOA) dianggarkan menggunakan carian puncak ke atas isyarat TD, dan kemudian sudut ketibaan (AOA) dan sudut berlepas (AOD) dianggarkan menggunakan histogram sudut wajaran. dengan algoritma klasifikasi isyarat berbilang (MUZIK) yang digunakan pada isyarat FD, songsang Fourier berubah daripada isyarat TD dibahagikan kepada subregion. Keputusan bunyi saluran dalaman mengesahkan bahawa pemberat yang sesuai mengurangkan tahap palsu dalam histogram sudut dengan faktor 0.1 hingga 0.2 berbanding dengan bukan pemberat. Teknik yang dicadangkan berjaya menyelesaikan komponen berbilang laluan dominan, termasuk laluan terus, pantulan tunggal dan pembelauan tunggal, dalam persekitaran garis pandang (LOS) dan bukan LOS. Spektrum TOA dan AOA/AOD bersama juga diperoleh daripada isyarat bunyi. Spektrum menggambarkan komponen berbilang laluan yang dominan (bersetuju dengan ramalan oleh pengesanan sinar) sebagai kelompok.
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Salinan
Naohiko IWAKIRI, Takehiko KOBAYASHI, "Ultra-Wideband Indoor Double-Directional Channel Estimation Using Transformation between Frequency and Time Domain Signals" in IEICE TRANSACTIONS on Fundamentals,
vol. E92-A, no. 9, pp. 2159-2166, September 2009, doi: 10.1587/transfun.E92.A.2159.
Abstract: This paper proposes an ultra-wideband double-directional spatio-temporal channel sounding technique using transformation between frequency- and time-domain (FD and TD) signals. Virtual antenna arrays, composed of omnidirectional antennas and scanners, are used for transmission and reception in the FD. After Fourier transforming the received FD signals to TD ones, time of arrival (TOA) is estimated using a peak search over the TD signals, and then angle of arrivals (AOA) and angle of departure (AOD) are estimated using a weighted angle histogram with a multiple signal classification (MUSIC) algorithm applied to the FD signals, inverse-Fourier transformed from the TD signals divided into subregions. Indoor channel sounding results validated that an appropriate weighting reduced a spurious level in the angle histogram by a factor of 0.1 to 0.2 in comparison with that of non-weighting. The proposed technique successfully resolved dominant multipath components, including a direct path, a single reflection, and a single diffraction, in line-of-sight (LOS) and non-LOS environments. Joint TOA and AOA/AOD spectra were also derived from the sounding signals. The spectra illustrated the dominant multipath components (agreed with the prediction by ray tracing) as clusters.
URL: https://global.ieice.org/en_transactions/fundamentals/10.1587/transfun.E92.A.2159/_p
Salinan
@ARTICLE{e92-a_9_2159,
author={Naohiko IWAKIRI, Takehiko KOBAYASHI, },
journal={IEICE TRANSACTIONS on Fundamentals},
title={Ultra-Wideband Indoor Double-Directional Channel Estimation Using Transformation between Frequency and Time Domain Signals},
year={2009},
volume={E92-A},
number={9},
pages={2159-2166},
abstract={This paper proposes an ultra-wideband double-directional spatio-temporal channel sounding technique using transformation between frequency- and time-domain (FD and TD) signals. Virtual antenna arrays, composed of omnidirectional antennas and scanners, are used for transmission and reception in the FD. After Fourier transforming the received FD signals to TD ones, time of arrival (TOA) is estimated using a peak search over the TD signals, and then angle of arrivals (AOA) and angle of departure (AOD) are estimated using a weighted angle histogram with a multiple signal classification (MUSIC) algorithm applied to the FD signals, inverse-Fourier transformed from the TD signals divided into subregions. Indoor channel sounding results validated that an appropriate weighting reduced a spurious level in the angle histogram by a factor of 0.1 to 0.2 in comparison with that of non-weighting. The proposed technique successfully resolved dominant multipath components, including a direct path, a single reflection, and a single diffraction, in line-of-sight (LOS) and non-LOS environments. Joint TOA and AOA/AOD spectra were also derived from the sounding signals. The spectra illustrated the dominant multipath components (agreed with the prediction by ray tracing) as clusters.},
keywords={},
doi={10.1587/transfun.E92.A.2159},
ISSN={1745-1337},
month={September},}
Salinan
TY - JOUR
TI - Ultra-Wideband Indoor Double-Directional Channel Estimation Using Transformation between Frequency and Time Domain Signals
T2 - IEICE TRANSACTIONS on Fundamentals
SP - 2159
EP - 2166
AU - Naohiko IWAKIRI
AU - Takehiko KOBAYASHI
PY - 2009
DO - 10.1587/transfun.E92.A.2159
JO - IEICE TRANSACTIONS on Fundamentals
SN - 1745-1337
VL - E92-A
IS - 9
JA - IEICE TRANSACTIONS on Fundamentals
Y1 - September 2009
AB - This paper proposes an ultra-wideband double-directional spatio-temporal channel sounding technique using transformation between frequency- and time-domain (FD and TD) signals. Virtual antenna arrays, composed of omnidirectional antennas and scanners, are used for transmission and reception in the FD. After Fourier transforming the received FD signals to TD ones, time of arrival (TOA) is estimated using a peak search over the TD signals, and then angle of arrivals (AOA) and angle of departure (AOD) are estimated using a weighted angle histogram with a multiple signal classification (MUSIC) algorithm applied to the FD signals, inverse-Fourier transformed from the TD signals divided into subregions. Indoor channel sounding results validated that an appropriate weighting reduced a spurious level in the angle histogram by a factor of 0.1 to 0.2 in comparison with that of non-weighting. The proposed technique successfully resolved dominant multipath components, including a direct path, a single reflection, and a single diffraction, in line-of-sight (LOS) and non-LOS environments. Joint TOA and AOA/AOD spectra were also derived from the sounding signals. The spectra illustrated the dominant multipath components (agreed with the prediction by ray tracing) as clusters.
ER -