학술논문
Future Possibilities in spacecraft ranging and Doppler systems
Document Type
Report
Author
Source
Proc. of the Conf. on Exptl. Tests of Gravitation Theories.
Subject
Language
English
Abstract
The structure of spacecraft tracking radar, and range and Doppler measurements, are discussed. Ranging can be used in conjunction with Doppler to determine the total number of charged particles on the radio path. Ranging can also be employed as the primary data type in determining certain kinds of orbits. The basic configuration of the ranging and Doppler system is considered. Inherent limitations on its accuracy with respect to the oscillator, transponder, ground equipment, signal to noise ratio, and general operation are noted.