2026-09-19T08:29:21Zhttps://dspace.mit.edu/server/oai/requestoai:dspace.mit.edu:1721.1/774472022-01-13T07:54:29Zcom_1721.1_7582com_1721.1_7581col_1721.1_131023
Max Tegmark.
Losh, Jonathan L
Massachusetts Institute of Technology. Dept. of Electrical Engineering and Computer Science.
Massachusetts Institute of Technology. Department of Electrical Engineering and Computer Science
2013-03-01T15:06:04Z
2013-03-01T15:06:04Z
2012
2012
http://hdl.handle.net/1721.1/77447
826515156
Thesis (M. Eng.)--Massachusetts Institute of Technology, Dept. of Electrical Engineering and Computer Science, 2012.
Cataloged from PDF version of thesis.
Includes bibliographical references.
21-cm tomography is a devoloping technique for measuring the Epoch of Reionization in the universe's history. The nature of the signal measured in 21-cm tomography is such that a new kind of radio telescope is needed: one that scales well into very large numbers of antennas. The Omniscope, a Fast Fourier Transform telescope, is exactly such a telescope. I detail the implementation of the digital signal processing backend of a 32-channel interferometer designed to help characterize the non-digital parts of the system, starting at the point analog signal enters the FPGA and ending when it is written to a file on a computer. I also describe the accompanying subsystems, my implementation of a scaled-up, 64 channel design, and lay out a framework for expanding to 256 channels.
by Jonathan L. Losh.
M.Eng.
1 v. (unpaged)
eng
Massachusetts Institute of Technology
M.I.T. theses are protected by
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http://dspace.mit.edu/handle/1721.1/7582
Electrical Engineering and Computer Science.
Digital signal processing hardware for a fast fourier transform radio telescope
Thesis
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Publication
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