Title
Range-Doppler Mapping of Space-Based Targets Using the JRO 50 MHz Radar
Date Issued
01 December 2017
Access level
open access
Resource Type
journal article
Author(s)
Kesaraju S.
Mathews J.D.
Vierinen J.
Jicamarca Radio Observatory
Publisher(s)
Springer Netherlands
Abstract
The Jicamarca Radio Observatory (JRO) two-dimensional square array radar system operating at ~ 6-m wavelength was used to study the Moon and low Earth orbit satellites using the Range-Doppler inverse synthetic aperture radar technique also known as Delay-Doppler imaging. The radar data was collected on Oct 21, 2015. A circularly polarized coded pulse was transmitted from a quarter-array antenna segment during lunar transit over JRO. Dual-linear polarization receive systems were employed on two quarter-array segments and on two 1/64th array modules giving the longest possible baselines across the transit path. A Range-Doppler mapping technique that uses the rotational motion of the targets and an autofocusing motion and ionospheric delay compensation technique has been implemented to generate the two-dimensional maps of the point-target (Satellite) and range-spread target (Moon). A review of our technique and the maps obtained from these observations is presented herein. Range-Doppler maps of the Moon and satellites are instructive with regards to possible further improvement of the technique, especially regarding ionospheric compensation.
Start page
169
End page
188
Volume
120
Issue
3
Language
English
OCDE Knowledge area
Astronomía
Scopus EID
2-s2.0-85035752191
Source
Earth, Moon and Planets
ISSN of the container
01679295
Sponsor(s)
Acknowledgements We would like to thank the entire staff of Radio Observatio de Jicamarca, especially Ivan Manay Salazar and Ramiro Yanque for their help in performing the observations and Freddy Galindo for his valuable help in understanding the ionosphere effects. We would also like to thank the valuable input of Dr. TW. Thompson, Jet Propulsion Laboratory, USA in designing the experimental setup. JRO is a facility of the Instituto Geofisico del Peru operated with support from the National Science Foundation (NSF) Grant AGS-0905448 through Cornell University. This effort was supported under NSF Grants AGS 12-41407 and AGS 12-02019 to The Pennsylvania State University.
Sources of information: Directorio de Producción Científica Scopus