Radiophysics, 1965-1966: Radiophysical Investigations of VenusNational Aeronautics and Space Administration, for sale by the Clearinghouse for Federal Scientific and Technical Information, Springfield, Va., 1969 - Radar in astronomy - 153 pages |
From inside the book
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Page vi
... relationship between para- meters measured in radio astronomic and radar observations , and the physical characteristics of the planet has been determined . A survey of the results of radio astronomic and radar measurments of Venus at ...
... relationship between para- meters measured in radio astronomic and radar observations , and the physical characteristics of the planet has been determined . A survey of the results of radio astronomic and radar measurments of Venus at ...
Page 15
... relationship between basic parameters which characterize the observed radio emissions of the planet , and the mechanism of thermal radio emission . tions . Some information from radar astronomy is also presented in paragraph II.3 ...
... relationship between basic parameters which characterize the observed radio emissions of the planet , and the mechanism of thermal radio emission . tions . Some information from radar astronomy is also presented in paragraph II.3 ...
Page 16
... relationship I = 2k T b 12 ( II.2 ) where k is Boltzmann's constant , A is the wave length of the received radiation . Brightness temperature , and in general brightness , depends upon the co- ordinates of the radiating area Tb = Tb ...
... relationship I = 2k T b 12 ( II.2 ) where k is Boltzmann's constant , A is the wave length of the received radiation . Brightness temperature , and in general brightness , depends upon the co- ordinates of the radiating area Tb = Tb ...
Page 17
... relationship / 24 F 2k TV & S = ( II.6 ) 23 where is the solid angle of the visible disk of Venus . Convenience in utilizing the concept of brightness temperature proceeds from the fact that in the case of thermal radiation , T is ...
... relationship / 24 F 2k TV & S = ( II.6 ) 23 where is the solid angle of the visible disk of Venus . Convenience in utilizing the concept of brightness temperature proceeds from the fact that in the case of thermal radiation , T is ...
Page 18
... relationship Here TA -- SA 2kg ↓ Tb ( 2 ) do g ↓ F ( 0 ) F ( 9 ) dQ S ( II.8 ) ( II.9 ) is a coefficient taking into account the commensurability of the angular dimensions of the source and the directional pattern of the antenna , A ...
... relationship Here TA -- SA 2kg ↓ Tb ( 2 ) do g ↓ F ( 0 ) F ( 9 ) dQ S ( II.8 ) ( II.9 ) is a coefficient taking into account the commensurability of the angular dimensions of the source and the directional pattern of the antenna , A ...
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Common terms and phrases
absorbent absorption altitude angle angular antenna approximately Astronomicheskiy Zhurnal atmos atmosphere of Venus brightness temperature centimeter cloud layer cm wave coefficient component concerning conducted corresponds decrease density dependence determined dielectric diffusion direction earth equal experimental data Figure greenhouse effect hour angle illuminated inferior conjunction interferometer ionized ionosphere measurement data measurements of Venus millimeter millimeter band model of Venus non-illuminated side Observations of Venus obtained optical thickness parameters permittivity planet planetary disk planetary surface polarization pole pressure quasi-specular radar measurements radiation of Venus radio astronomical radio frequency radiation Radiofizika Radiofrequency Radiation radioluminescence radiotelescope radius reflected radiation reflected signal Reflection from Venus relationship revealed rotation of Venus RZhAstr RZhFiz Sagan Salomonovich side of Venus solar superior conjunction surface of Venus temperature of Venus thermal thermal radiation Venus disk Venus's atmosphere visibility function visible disk water vapor wave band