Engineering topics

Estefan, J.

Publications and source records attributed to Estefan, J..

2 records

NASA NTRS1994

Doppler Navigation of Interplanetary Spacecraft Using Different Data Processing Modes

This paper presents an investigation of the navigation accuracy that can be achieved with two-way coherent X-band Doppler phase and frequency data; both theoretical and practical aspects of the two Doppler formulations are addressed.

navigation accuracy↗

NASA NTRS1993

Radio Doppler Navigation of Interplanetary Spacecraft Using Different Data Processing Modes

Doppler shift measurements derived from closed-loop radio tracking of distant spacecraft by ground stations of the Deep Space Network (DSN) are one of the principal means used for interplanetary navigation.

radio↗