2014/05/22 by T. Natusch, Tim Natusch, Natusch, Tim
Computer Science · Engineering · Mathematics · Physics and Astronomy · #Advanced Data Compression Techniques #Advanced Wireless Communication Techniques #Algorithms and Data Compression #astro-ph.IM #cs.IT #math.IT
paper · pdf · doi:10.48550/arxiv.1405.5634
In preparation for submission
arxiv created 2014/05/22 · arxiv updated 2014/05/23
The modern practice of Radio Astronomy is characterized by extremes of data volume and rates, principally because of the direct relationship between the signal to noise ratio that can be achieved and the need to Nyquist sample the RF bandwidth necessary by way of support. The transport of these data flows is costly. By examining the statistical nature of typical data flows and applying well known techniques from the field of Information Theory the following work shows that lossless compression of typical radio astronomy data flows is in theory possible. The key parameter in determining the degree of compression possible is the standard deviation of the data. The practical application of compression could prove beneficial in reducing the costs of data transport and (arguably) storage for new generation instruments such as the Square Kilometer Array.