Delta differential One-way ranging (DDOR) transmitter onboard Mars Orbiter Mission (MOM)

Author

Ramamurthy, Chitra ; Karkara, Rahul ; Vaishya, Deepali C. ; Jolie, R.

Author_Institution

Commun. Syst. Group, ISRO Satellite Centre, Bangalore, India

fYear

2015

fDate

2-3 Jan. 2015

Firstpage

458

Lastpage

463

Abstract

Delta Differential One-way ranging (DDOR) is an interferometer technique used in deep space missions to calculate the angular position of a satellite with reference to a well known source which is usually a quasar. A Transmitter has been used in Mars Orbiter Mission (MOM) for DDOR measurement to improve the accuracy of orbit determined by other techniques. The Transmitter operates at S-band with carrier phase modulated by a single tone at around 4 MHz approximately. This paper discusses the principle of DDOR measurement, how the specifications for the Transmitter were arrived at, the design & realization using the available components and its on-orbit performance.

Keywords

Mars; radioastronomical techniques; radiowave interferometry; space communication links; space vehicles; DDOR transmitter; MOM transmitter; Mars Orbiter Mission; delta differential one-way ranging transmitter; interferometer technique; Distance measurement; Extraterrestrial measurements; Orbits; Phase modulation; Satellites; Space vehicles; Transmitters; Differential one-way ranging; Phase Modulation; Phase locked Loops; Transmitter;

fLanguage

English

Publisher

ieee

Conference_Titel

Signal Processing And Communication Engineering Systems (SPACES), 2015 International Conference on

Conference_Location

Guntur

Type

conf

DOI

10.1109/SPACES.2015.7058306

Filename

7058306