High elevation angle propagation results, applied to a statistical model and an enhanced empirical model

1993 ◽  
Vol 29 (19) ◽  
pp. 1723 ◽  
Author(s):  
M.A.N. Parks ◽  
B.G. Evans ◽  
G. Butt
Keyword(s):  
Statistical Model ◽  
Empirical Model ◽  
Elevation Angle ◽  
High Elevation

scholarly journals Accuracy of Doppler Determinations of Station Positions

1972 ◽  
Vol 48 ◽  
pp. 101-103
Author(s):  
R. J. Anderle
Keyword(s):  
Elevation Angle ◽  
High Elevation ◽  
Time Of Day ◽  
Satellite Observations ◽  
Standard Errors ◽  
Lower Elevation ◽  
Self Consistent

Locations of Doppler satellite observing stations have been revised to obtain a set which is more self-consistent and more consistent with the CIO pole. Residuals of satellite observations for 1970 have been analyzed using the new coordinates to determine mean and standard errors for five days of observations of latitude versus station, time of day, and elevation angle. The accuracy of the determination of latitude is about 4 meters at moderate and high elevation angles. But since more satellite passes occur at lower elevation angles, the accuracy of determination of a component of position based on five days of observation of one satellite is only about 2 meters.

scholarly journals A Hedonic Analysis of the Impact of Tree Shade on Summertime Residential Energy Consumption

2010 ◽  
Vol 36 (2) ◽  
pp. 73-80
Author(s):  
Ram Pandit ◽  
David Laband
Keyword(s):  
Energy Consumption ◽  
Statistical Model ◽  
Empirical Model ◽  
Hedonic Analysis ◽  
Residential Energy ◽  
Residential Energy Consumption ◽  
Large Sample ◽  
The Impact ◽  
Suburban Environment

Trees cast shade on homes and buildings, lowering the inside temperatures and thus reducing the demand for power to cool these buildings during hot times of the year. Drawing from a large sample of residences in Auburn, Alabama, U.S., a statistical model was developed to produce specific estimates of the electricity savings generated by shade-producing trees in a suburban environment. This empirical model links residential energy consumption to hedonic characteristics of the structures, characteristics/ behaviors of the occupants, and the extent and density of shade cast on the structures at different times of the day.

Tropospheric scintillation prediction models for a high elevation angle based on measured data from a tropical region

2013 ◽  
Vol 105-106 ◽  
pp. 91-96 ◽  
Author(s):  
Nadirah Binti Abdul Rahim ◽  
Md. Rafiqul Islam ◽  
Mandeep J.S. ◽  
Hassan Dao ◽  
Saad Osman Bashir
Keyword(s):  
Prediction Models ◽  
Elevation Angle ◽  
High Elevation ◽  
Measured Data ◽  
Tropical Region ◽  
Tropospheric Scintillation
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