Open AccessSynchronous Addition of Antenna Signals with a Shift of Sampling Pulses in Idealized Mode of Spacecraft Tracking by Target Designations
Author(s) -
S. I. Vatutin
Publication year - 2020
Publication title -
raketno-kosmičeskoe priborostroenie i informacionnye sistemy
Language(s) - English
Resource type - Journals
eISSN - 2587-9057
pISSN - 2409-0239
DOI - 10.30894/issn2409-0239.2020.7.4.22.37
Subject(s) - spacecraft , antenna (radio) , telemetry , computer science , directional antenna , sampling (signal processing) , tracking (education) , signal (programming language) , mode (computer interface) , nasa deep space network , electronic engineering , acoustics , remote sensing , electrical engineering , physics , telecommunications , engineering , aerospace engineering , geography , psychology , pedagogy , detector , programming language , operating system
The method of synchronous addition of signals of separate antennas was proposed previously for the aggregation of relatively small-scale aperture antennas into a single digital antenna array (digital antenna field) with a combined area for receiving telemetry signals from spacecraft. In this case, the antennas are mutually spaced by a big enough distance in order to not shade one another. The method is based on the idea of compensating the mutual delays between the antennas of the received signal by a corresponding shift of the sampling pulses of the signals of different antennas. This article demonstrates the method’s workability in idealized mode of spacecraft tracking by target designations on orbits of global navigation systems. It is shown that with the up-to-date level of impulse technology development the method of synchronous addition of antenna signals with a shift of sampling pulses is potentially capable of ensuring the reception of telemetry information from deep-space spacecraft at rates approximately 6 times higher than those of the classic Delta-DOR method.