EHF attenuation derived from emission temperatures in light rain
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Additional excerpts
...Conversely, the measured Tmr characteristics seen in Figure 3 are in agreement with calculations based on more realistic models of horizontally stratified atmospheres [12,13]....
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4 citations
Cites background or methods from "EHF attenuation derived from emissi..."
...For atmospheres with attenuation less than about 10dB, an approximate value of Tmr is often sufficient to provide an acceptable estimate of the attenuation [Allnutt et al., 1994; Brussaard, 1984; Shimabukuro et al., 1984]....
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...This led some researchers to conclude that apparent attenuation determined by equation (5) would underestimate the true attenuation [Zavody, 1974; Ishimaru and Cheung, 1980; Shimabukuro et al., 1984]....
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2 citations
Cites background from "EHF attenuation derived from emissi..."
...Karhu et al. [9] extended the dynamic range by calibrating Tmr with beacon measurements....
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...On the other hand direct use of equation (2) for higher attenuation becomes unreliable because the usual estimates of Tmr are not sufficiently accurate....
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...Use of equation (2) is much more robust when applied to real atmospheres with appropriate estimates of Tmr [8,9]....
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...It is convenient to express the RTE as 𝐴 = 10 log ( 𝑇𝑚𝑟−2.73 𝑇𝑚𝑟−𝑇𝑏 ), (2) where Tmr is called an effective radiating temperature....
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...Attenuation derived from equation (2) with a Tmr that was a function of TS, PS, and RHS was assumed valid for A 10 dB....
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References
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