ISSN 2070-7401 (Print), ISSN 2411-0280 (Online)
Sovremennye problemy distantsionnogo zondirovaniya Zemli iz kosmosa
CURRENT PROBLEMS IN REMOTE SENSING OF THE EARTH FROM SPACE

  

Sovremennye problemy distantsionnogo zondirovaniya Zemli iz kosmosa, 2012, Vol. 9, No. 2, pp. 145-151

Doppler radars for the spacecrafts landing on Moon and planets of solar system

V.V. Egorov 
Space Research Institute of Russian Academy of Sciences, Moscow
Methodic aspects of altitude and velocity measurements of the spacecrafts meant for the soft landing on Moon and planets are considered. The errors of doppler meters of velocity, inclined range and altitude using FM and multi-frequency signals as well as errors of the phase radar altimeter with the wide antenna directional pattern are evaluated.
Keywords: phase radar, radar altimeter, radiovertical, frequency scale, landing, accuracy, noise, variance, bias, dynamic error
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