Numerical Evaluation of Propagation Impairments Due to Man-Made Structures on Digital Microwave Links
Summary :
Radio disturbances of digital microwave links are likely to increase as man-made structures screen the radio propagation paths, and unwanted waves reflected or scattered by the structures interfere with radio signals. This paper describes a practical method for evaluating the influence of propagation impairments due to man-made structures on digital microwave links and provides some model calculations of those impairments. Since multilevel and quadrature modulation techniques are employed to achieve high spectral efficiency for recent digital transmissions, not only average level attenuation but also in-band distortion and intersymbol interference have to be taken into account. Propagation distortion, diffraction loss and cross-polar interference due to reflected and scattered waves from man-made structures such as buildings and conductor structures are evaluated.
- Publication
- IEICE TRANSACTIONS on Communications Vol.E78-B No.8 pp.1219-1228
- Publication Date
- 1995/08/25
- Publicized
- Online ISSN
- DOI
- Type of Manuscript
- PAPER
- Category
- Antennas and Propagation
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Yoshizumi SERIZAWA, "Numerical Evaluation of Propagation Impairments Due to Man-Made Structures on Digital Microwave Links" in IEICE TRANSACTIONS on Communications,
vol. E78-B, no. 8, pp. 1219-1228, August 1995, doi: .
Abstract: Radio disturbances of digital microwave links are likely to increase as man-made structures screen the radio propagation paths, and unwanted waves reflected or scattered by the structures interfere with radio signals. This paper describes a practical method for evaluating the influence of propagation impairments due to man-made structures on digital microwave links and provides some model calculations of those impairments. Since multilevel and quadrature modulation techniques are employed to achieve high spectral efficiency for recent digital transmissions, not only average level attenuation but also in-band distortion and intersymbol interference have to be taken into account. Propagation distortion, diffraction loss and cross-polar interference due to reflected and scattered waves from man-made structures such as buildings and conductor structures are evaluated.
URL: https://global.ieice.org/en_transactions/communications/10.1587/e78-b_8_1219/_p
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@ARTICLE{e78-b_8_1219,
author={Yoshizumi SERIZAWA, },
journal={IEICE TRANSACTIONS on Communications},
title={Numerical Evaluation of Propagation Impairments Due to Man-Made Structures on Digital Microwave Links},
year={1995},
volume={E78-B},
number={8},
pages={1219-1228},
abstract={Radio disturbances of digital microwave links are likely to increase as man-made structures screen the radio propagation paths, and unwanted waves reflected or scattered by the structures interfere with radio signals. This paper describes a practical method for evaluating the influence of propagation impairments due to man-made structures on digital microwave links and provides some model calculations of those impairments. Since multilevel and quadrature modulation techniques are employed to achieve high spectral efficiency for recent digital transmissions, not only average level attenuation but also in-band distortion and intersymbol interference have to be taken into account. Propagation distortion, diffraction loss and cross-polar interference due to reflected and scattered waves from man-made structures such as buildings and conductor structures are evaluated.},
keywords={},
doi={},
ISSN={},
month={August},}
Copy
TY - JOUR
TI - Numerical Evaluation of Propagation Impairments Due to Man-Made Structures on Digital Microwave Links
T2 - IEICE TRANSACTIONS on Communications
SP - 1219
EP - 1228
AU - Yoshizumi SERIZAWA
PY - 1995
DO -
JO - IEICE TRANSACTIONS on Communications
SN -
VL - E78-B
IS - 8
JA - IEICE TRANSACTIONS on Communications
Y1 - August 1995
AB - Radio disturbances of digital microwave links are likely to increase as man-made structures screen the radio propagation paths, and unwanted waves reflected or scattered by the structures interfere with radio signals. This paper describes a practical method for evaluating the influence of propagation impairments due to man-made structures on digital microwave links and provides some model calculations of those impairments. Since multilevel and quadrature modulation techniques are employed to achieve high spectral efficiency for recent digital transmissions, not only average level attenuation but also in-band distortion and intersymbol interference have to be taken into account. Propagation distortion, diffraction loss and cross-polar interference due to reflected and scattered waves from man-made structures such as buildings and conductor structures are evaluated.
ER -
English
