COMMUNICATIONS SATELLITE PROGRAM
Discussion of the nasa passive and active communications satellite programs
COMMUNICATIONS SATELLITE↗
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Results for “Echo”
Search indexed NASA NTRS and DOE OSTI research on propulsion, heat transfer, battery materials and energy systems. Follow report and document links to the original sources.
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SOME PHYSICAL CONSTANTS OF THE LUNAR SURFACE AS INDICATED BY ITS RADAR SCATTERING AND THERMAL EMISSION PROPERTIES
Physical constants of the lunar surface as indicated by its radar scattering and thermal emission properties
THERMAL RADIO EMISSION↗
THE DISTRIBUTION OF METEORS AROUND THE EARTH'S ORBIT
Radar survey of the distribution of meteors around the earths orbit to determine factors controlling the observed diurnal and seasonal rate variations
METEOR↗
Statistical radar estimate of the lunar surface roughness.
Statistical radar estimate of lunar surface roughness
SURFACE ROUGHNESS↗
Scattering theories and radar return
Scattering theories and radar return - theory of bistatic radar return from statistically rough surface and literature survey on scattering theories
SURFACE ROUGHNESS↗
High-frequency scattering from a coated cylinder.
HF backscattering from coated cylinder having complex refractive index
BACKSCATTER↗
High frequency back scatter from the earth measured at 1000 km altitude.
High frequency backscatter from Earth observed by Alouette satellite radar
BACKSCATTER↗
Notes on backscattering and depolarization by gently undulating surfaces.
Radar signal backscattering and depolarization by gently undulating surfaces
RADAR ECHO↗
Using frequency offset in an fm/cw transponder to eliminate clutter.
Offsetting frequency of FM/CW transponder signal with respect to interrogation signal to eliminate clutter
ECHO SUPPRESSION↗
Lunar radar measurements of the diurnal exchange of ionization between the ionosphere and the magnetosphere Scientific report no. 14
Diurnal exchange of ionization between ionosphere and magnetosphere
IONOSPHERE↗
Characteristics of passive communication satellites with Lambertian surfaces
Passive communications satellite with diffusing surface characteristics
RADIO ECHO↗
The calculation of the heights of the peaks of the ionospheric layers.
Height of peaks of ionospheric layers using five- point Kelso analysis and single polynomial analysis
IONOSPHERIC REFLECTION↗
Physical characteristics of 320 faint radio meteors.
Harvard Radio Meteor Project observations of physical characteristics of small radio meteors
RADIO METEOR↗
24 hour history of radar angel activity at three wavelengths.
24 hr history of radar angel activity at 3.2, 10.7 and 71.5 cm wavelengths
RADAR ECHO↗
Observations of conjugate ducting by the fixed- frequency topside-sounder satellite.
Conjugate ducting observation via fixed frequency topside-sounder satellite, estimating electron concentration difference
MAGNETOSPHERIC INSTABILITY↗
Radar properties of the moon.
Radar methods in lunar probing, discussing data obtained from surface soundings
SURFACE PROPERTY↗
Radar analysis of the clear atmosphere - Angels.
Clear atmosphere angels origin, clear air turbulence detection, radio propagation and atmospheric radar probing
ELECTROMAGNETIC SCATTERING↗