DOPPLER EFFECT OF ARTIFICIAL SATELLITES
Abstract
The Doppler effect measured on satellites and space-probes, which consists of frequency measure ents only, is attractive for many purpo s. It was found for i ce a i pri cipl Doppler-frequency curve (frequency fu ctio of im ) of a singl pass of a satellite should suffice to measure its orbital parameters, and that accurate tracking of objects within the solar system using only the Doppler-effect was possible within the present state of the art. The emissions of sat lli r u o f cili vig io o t urface of r by accur fr u cy measur m of ir Doppler-shift, assuming that their orbits are accurately known. This is the inverse procedure of calculating the orbit par meters from the Doppler-shift, and known position of receiver. The distortions of e OPPLER CURVE I RO UC BY IO O P RIC EFF C LIK REFRACTIO ND C A G OF PHASE VELOCITY, ARE A DISADVANTAGE FOR TRACKING AND NAVIGATION BUT THEY ENABLE ONE TO TAKE SOME INTERESTING MEASUREMENTS OF THE IONOSPHERE LIKE TOTAL ELECTRON CONTENTS, AND HETEROGENITY OF THE IONIZED LAYERS. Important published results concerning the measurem nt and utilizatio of the Dopplershift from artificial satellites are reviewed. (Author)
Document Details
- Document Type
- Technical Report
- Publication Date
- Feb 20, 1962
- Accession Number
- AD0275593
Entities
People
- E. Vassy
- J. Mass
Organizations
- University of Paris