File:Low altitude near the horizon propagation- a comparison between RPO and M-Layer (IA lowltitudenearho1094539762).pdf
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Low altitude near the horizon propagation: a comparison between RPO and M-Layer
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| Author |
Wu, Chi-Wei. |
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| Title |
Low altitude near the horizon propagation: a comparison between RPO and M-Layer |
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| Publisher |
Monterey, California. Naval Postgraduate School |
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| Description |
Predictions of propagation loss made by the computer programs Radio Physical Optics (RPO) Computer Software Configuration Item (CSCI) and M-Layer are compared. The results of the high frequency parabolic equation approximation, as formulated in RPO, agree almost always with those derived from the low frequency modal computation as formulated in M-Layer. But at low altitudes in the neighborhood of the radar horizon, deviations between RPO and M-Layer become significant for some cases. RPO appears not to be able to properly account for the effects of a high altitude surface-based duct at a short range. Since the discrepancies fan in regions of importance to naval operations, a definitive resolution is an urgent task to be undertaken in the immediate future. Subjects: Electromagnetic waves; Transmission; Mathematical models; Propagation loss; Radio physical optics CSCI; M-layer; Parabolic equation; Waveguide mode; Evaporation duct; Surface-based duct |
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| Language | English | |
| Publication date | December 1993 | |
| Current location |
IA Collections: navalpostgraduateschoollibrary; fedlink |
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| Accession number |
lowltitudenearho1094539762 |
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| Source | ||
| Permission (Reusing this file) |
Copyright is reserved by copyright owner. | |
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| This file has been identified as being free of known restrictions under copyright law, including all related and neighboring rights. | ||
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| Date/Time | Thumbnail | Dimensions | User | Comment | |
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| current | 16:46, 22 July 2020 |  | 1,275 × 1,650, 142 pages (4.25 MB) | Fæ (talk | contribs) | FEDLINK - United States Federal Collection lowltitudenearho1094539762 (User talk:Fæ/IA books#Fork8) (batch 1993-2020 #20968) |
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