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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) Latitude of ground station (deg)
hS (1,1) Ground station height (km)
rSC (3,1) Spacecraft distance (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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AerospaceUtils: Coord/HorizonAngle AerospaceUtils: Coord/LatLonAltToEF Common: Graphics/Plot2D
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