Path: Link/RF
% Computes the link attenuation due to precipation.
The output is a loss in dB. This is a positive quantity. The negative
must be used to get the gain for a link equation.
e.g. 10 dB loss = -10 dB gain.
This function only works in the northern hemisphere.
Type LossPrecipitation for a demo for the 'K' zone.
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Form:
aRain = LossPrecipitation( f, zone, pTime, latitudeS, longitudeS, hS, rSC, tau )
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Inputs
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f (1,1) Frequency (GHz)
zone (1,1) Climate zone (A-Q)
pTime (1,1) Precipation percentage of time
latitudeS (1,1) Latitude of ground station (deg)
longitudeS (1,1) Longitude of ground station (deg)
hS (1,1) Ground station height (km)
rSC (3,1) Spacecraft vector (km)
tau (1,1) Polarization tilt angle (deg)
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Outputs
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aRain (1,1) Link attenuation (dB)
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Reference: Maral, G. and M. Bousquet. (1998.) Satellite Communications
Systems, Third Edition. John Wiley. pp. 47-57.
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AC: ACData/ACTConstants AerospaceUtils: Coord/HorizonAngle AerospaceUtils: Coord/LatLonAltToEF SC: SCData/sCTConstants Common: CommonData/Constants Common: CommonData/SwooshWatermark Common: CommonData/xSplashSmall Common: Database/Constant Common: General/CellToMat Common: General/DeleteCell Common: General/MatToCell Common: General/Watermark Common: Graphics/NewFig Common: Graphics/Plot2D Common: Graphics/PltStyle Math: Linear/DupVect Math: Linear/Unit
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