In this paper we demonstrate improved techniques to extend coherent processing intervals for passive radar processing, with the Murchison Widefield Array. Specifically, we apply a two stage linear range and Doppler migration compensation by utilising Keystone Formatting and a recent dechirping method. These methods are used to further demonstrate the potential for the surveillance of space with the Murchison Widefield Array using passive radar, by detecting objects orders of magnitude smaller than previous work. This paper also demonstrates how the linear Doppler migration methods can be extended to higher order compensation to further increase potential processing intervals.
@article{arxiv.1907.00691,
title = {Improved Techniques for the Surveillance of the Near Earth Space Environment with the Murchison Widefield Array},
author = {Brendan Hennessy and Steven Tingay and Paul Hancock and Robert Young and Steven Tremblay and Randall B. Wayth and John Morgan and Sammy McSweeney and Brian Crosse and Melanie Johnston-Hollitt and David L. Kaplan and Dave Pallot and Mia Walker},
journal= {arXiv preprint arXiv:1907.00691},
year = {2019}
}
Comments
Presented at the 2019 IEEE Radar Conference in Boston earlier this year