Full Wave Analysis of the Australian Omega Signal Observed by the Akebono Satellite

Isamu NAGANO; Paul A. ROSEN; Satoshi YAGITANI; Minoru HATA; Kazutoshi MIYAMURA; Iwane KIMURA

Full Wave Analysis of the Australian Omega Signal Observed by the Akebono Satellite

Isamu NAGANO, Paul A. ROSEN, Satoshi YAGITANI, Minoru HATA, Kazutoshi MIYAMURA, Iwane KIMURA

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The Akebono satellite observed the Australian Omega signals when it passed about 1000km over the Omega station. In this paper, we compare the observed Omega signal intensities with the values obtained using a full wave calculation and we discuss a mechanism of modulation of the signals. The relative spatial variations of the calculated Omega intensities are quite consistent with those observed, but the absolute calculated intensities themselves are several dB larger than the observed intensities. This difference in intensity may be due to the horizontal inhomogeneity of the D region, which is not modeled in the full wave calculation, or to an incorrect assumption about radiation characteristics of the Omega antenna. It is found that modulation of the observed signals is caused by the interference between the waves with different k vectors.

Publication: IEICE TRANSACTIONS on Communications Vol.E76-B No.12 pp.1571-1578

Publication Date: 1993/12/25

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Type of Manuscript: Special Section PAPER (Special Issue on 1992 Internatioal Symposium on Antennas and Propagation)

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Isamu NAGANO, Paul A. ROSEN, Satoshi YAGITANI, Minoru HATA, Kazutoshi MIYAMURA, Iwane KIMURA, "Full Wave Analysis of the Australian Omega Signal Observed by the Akebono Satellite" in IEICE TRANSACTIONS on Communications, vol. E76-B, no. 12, pp. 1571-1578, December 1993, doi: .
Abstract: The Akebono satellite observed the Australian Omega signals when it passed about 1000km over the Omega station. In this paper, we compare the observed Omega signal intensities with the values obtained using a full wave calculation and we discuss a mechanism of modulation of the signals. The relative spatial variations of the calculated Omega intensities are quite consistent with those observed, but the absolute calculated intensities themselves are several dB larger than the observed intensities. This difference in intensity may be due to the horizontal inhomogeneity of the D region, which is not modeled in the full wave calculation, or to an incorrect assumption about radiation characteristics of the Omega antenna. It is found that modulation of the observed signals is caused by the interference between the waves with different k vectors.
URL: https://globals.ieice.org/en_transactions/communications/10.1587/e76-b_12_1571/_p

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@ARTICLE{e76-b_12_1571,
author={Isamu NAGANO, Paul A. ROSEN, Satoshi YAGITANI, Minoru HATA, Kazutoshi MIYAMURA, Iwane KIMURA, },
journal={IEICE TRANSACTIONS on Communications},
title={Full Wave Analysis of the Australian Omega Signal Observed by the Akebono Satellite},
year={1993},
volume={E76-B},
number={12},
pages={1571-1578},
abstract={The Akebono satellite observed the Australian Omega signals when it passed about 1000km over the Omega station. In this paper, we compare the observed Omega signal intensities with the values obtained using a full wave calculation and we discuss a mechanism of modulation of the signals. The relative spatial variations of the calculated Omega intensities are quite consistent with those observed, but the absolute calculated intensities themselves are several dB larger than the observed intensities. This difference in intensity may be due to the horizontal inhomogeneity of the D region, which is not modeled in the full wave calculation, or to an incorrect assumption about radiation characteristics of the Omega antenna. It is found that modulation of the observed signals is caused by the interference between the waves with different k vectors.},
keywords={},
doi={},
ISSN={},
month={December},}

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TY - JOUR
TI - Full Wave Analysis of the Australian Omega Signal Observed by the Akebono Satellite
T2 - IEICE TRANSACTIONS on Communications
SP - 1571
EP - 1578
AU - Isamu NAGANO
AU - Paul A. ROSEN
AU - Satoshi YAGITANI
AU - Minoru HATA
AU - Kazutoshi MIYAMURA
AU - Iwane KIMURA
PY - 1993
DO -
JO - IEICE TRANSACTIONS on Communications
SN -
VL - E76-B
IS - 12
JA - IEICE TRANSACTIONS on Communications
Y1 - December 1993
AB - The Akebono satellite observed the Australian Omega signals when it passed about 1000km over the Omega station. In this paper, we compare the observed Omega signal intensities with the values obtained using a full wave calculation and we discuss a mechanism of modulation of the signals. The relative spatial variations of the calculated Omega intensities are quite consistent with those observed, but the absolute calculated intensities themselves are several dB larger than the observed intensities. This difference in intensity may be due to the horizontal inhomogeneity of the D region, which is not modeled in the full wave calculation, or to an incorrect assumption about radiation characteristics of the Omega antenna. It is found that modulation of the observed signals is caused by the interference between the waves with different k vectors.
ER -