Range-Doppler Mapping of Space-Based Targets Using the JRO 50 MHz Radar

S. Kesaraju, J. D. Mathews, M. Milla, J. Vierinen

Research output: Contribution to journalArticle

2 Citations (Scopus)

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.

Original languageEnglish (US)
Pages (from-to)169-188
Number of pages20
JournalEarth, Moon and Planets
Volume120
Issue number3
DOIs
StatePublished - Dec 1 2017

Fingerprint

moon
radar
observatories
observatory
radio
transit
Moon
ionospherics
radar data
antenna arrays
low Earth orbits
synthetic aperture radar
linear polarization
modules
antenna
polarization
pulses
wavelength
wavelengths

All Science Journal Classification (ASJC) codes

  • Astronomy and Astrophysics
  • Earth and Planetary Sciences (miscellaneous)
  • Space and Planetary Science

Cite this

Kesaraju, S. ; Mathews, J. D. ; Milla, M. ; Vierinen, J. / Range-Doppler Mapping of Space-Based Targets Using the JRO 50 MHz Radar. In: Earth, Moon and Planets. 2017 ; Vol. 120, No. 3. pp. 169-188.
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Kesaraju, S, Mathews, JD, Milla, M & Vierinen, J 2017, 'Range-Doppler Mapping of Space-Based Targets Using the JRO 50 MHz Radar', Earth, Moon and Planets, vol. 120, no. 3, pp. 169-188. https://doi.org/10.1007/s11038-017-9510-0

Range-Doppler Mapping of Space-Based Targets Using the JRO 50 MHz Radar. / Kesaraju, S.; Mathews, J. D.; Milla, M.; Vierinen, J.

In: Earth, Moon and Planets, Vol. 120, No. 3, 01.12.2017, p. 169-188.

Research output: Contribution to journalArticle

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