Aaron Parsons

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—Our group, the Center for Astronomy Signal Processing and Electronics Research (CASPER), seeks to speed the development of radio astronomy signal processing instrumentation by designing and demonstrating a scal-able, upgradeable, FPGA-based computing platform and software design methodology that targets a range of real-time radio telescope signal(More)
A new generation of radio telescopes is achieving unprecedented levels of sensitivity and resolution, as well as increased agility and field-of-view, by employing high-performance digital signal processing hardware to phase and correlate large numbers of antennas. The computational demands of these imaging systems scale in proportion to BM N 2 , where B is(More)
We present a filtering technique that can be applied to individual baselines of wide-bandwidth, wide-field interferometric data to geometrically select regions on the celestial sphere that contain primary calibration sources. The technique relies on the Fourier transformation of wide-band frequency spectra from a given baseline to obtain one-dimensional "(More)
4 Abstract— A new generation of radio telescopes is achieving unprecedented levels of sensitivity and resolution, as well as increased agility and field-of-view, by employing high-performance digital signal processing hardware to phase and correlate large numbers of antennas. The computational demands of these imaging systems scale in proportion to BM N 2 ,(More)
The consortium for Galactic studies with the Arecibo L-band Feed Array (ALFA) is conducting a neutral hydrogen (HI) survey of the whole Arecibo sky (declination range from −1 • to 38 •), with high angular (3.5 ′) and velocity resolution (0.2 km s −1). The precursor observations with ALFA of a region in the Galactic anti-center reveal numerous isolated,(More)
Article is made available in accordance with the publisher's policy and may be subject to US copyright law. Please refer to the publisher's site for terms of use. The MIT Faculty has made this article openly available. Please share how this access benefits you. Your story matters. In order to study the " Cosmic Dawn " and the Epoch of Reionization with 21(More)
Our group seeks to revolutionize the development of radio astronomy signal processing instrumentation by designing and demonstrating a scalable, upgradeable, FPGA-based computing platform and software design methodology that targets a range of real-time radio telescope signal processing applications. This project relies on the development of a small number(More)
Our SERENDIP (Search for Extraterrestrial Radio Emissions from Nearby Developed Intelligent Populations) project seeks to detect anomalous radio signals by spectrally decomposing Arecibo telescope data. Based on reconfigurable FPGA technology, our latest spectrometer hardware is seeing wide use within the radio astronomy community-proving the feasibility of(More)
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