Low cost analog signal processing for massive radio telescope arrays
Thesis (M. Eng.)--Massachusetts Institute of Technology, Dept. of Electrical Engineering and Computer Science, 2012. === Cataloged from PDF version of thesis. === Includes bibliographical references (p. 38). === Measurement and analysis of redshifted 21cm hydrogen emissions is a developing technique...
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| Format: | Others |
| Language: | English |
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Massachusetts Institute of Technology
2013
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| Online Access: | http://hdl.handle.net/1721.1/77079 |
| Summary: | Thesis (M. Eng.)--Massachusetts Institute of Technology, Dept. of Electrical Engineering and Computer Science, 2012. === Cataloged from PDF version of thesis. === Includes bibliographical references (p. 38). === Measurement and analysis of redshifted 21cm hydrogen emissions is a developing technique for studying the early universe. The primary time of interest corresponds to a signal in the the 100-200MHz frequency band. The Omniscope is a new type of radio telescope array being developed at MIT which images the entire sky in this band at low resolution using spatial Fourier transforms. In order to gain the maximum benefit from this type of telescope, a regular array of more than 10,000 antennas will eventually be necessary. I detail a low cost analog signal path which was developed to test and refine the signal processing and imaging pathways of the Omniscope. This signal path begins at the output of a preexisting antenna design and ends with digitization. === by Eben A. Kunz. === M.Eng. |
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