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Extended empirical roadside shadowing model from acts mobile measurements
| Content Provider | NASA Technical Reports Server (NTRS) |
|---|---|
| Author | Goldhirsh Sr., Julius Vogel, Wolfhard |
| Copyright Year | 1995 |
| Description | Employing multiple data bases derived from land-mobile satellite measurements using the Advanced Communications Technology Satellite (ACTS) at 20 GHz, MARECS B-2 at 1.5 GHz, and helicopter measurements at 870 MHz and 1.5 GHz, the Empirical Road Side Shadowing Model (ERS) has been extended. The new model (Extended Empirical Roadside Shadowing Model, EERS) may now be employed at frequencies from UHF to 20 GHz, at elevation angles from 7 to 60 deg and at percentages from 1 to 80 percent (0 dB fade). The EERS distributions are validated against measured ones and fade deviations associated with the model are assessed. A model is also presented for estimating the effects of foliage (or non-foliage) on 20 GHz distributions, given distributions from deciduous trees devoid of leaves (or in full foliage). |
| File Size | 747886 |
| Page Count | 11 |
| File Format | |
| Alternate Webpage(s) | http://archive.org/details/NASA_NTRS_Archive_19960000450 |
| Archival Resource Key | ark:/13960/t5q867n3k |
| Language | English |
| Publisher Date | 1995-08-01 |
| Access Restriction | Open |
| Subject Keyword | Communications And Radar Signal Fading Ultrahigh Frequencies Roads Helicopters Deciduous Trees Superhigh Frequencies Communication Satellites Satellite Observation Elevation Angle Data Bases Shadows Foliage Mathematical Models Ground Effect Communications Land Mobile Satellite Service Acts Distribution Functions Ntrs Nasa Technical Reports Server (ntrs) Nasa Technical Reports Server Aerodynamics Aircraft Aerospace Engineering Aerospace Aeronautic Space Science |
| Content Type | Text |
| Resource Type | Article |
