Download or read book Radio Transient Classification Algorithms for CHIME/FRB written by Alexander Josephy and published by . This book was released on 2018 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt: "Fast Radio Bursts (FRBs) are micro-to-millisecond duration transients of extragalactic origin. Despite FRB rate estimates of thousands per sky per day, only 30 sources have been detected in the now decade since the initial discovery, and the progenitor of FRBs remains a mystery. This will soon change, as a dedicated 24/7 real-time search, expected to detect tens of FRBs every day, is in the early stages of commissioning. The search is hosted by a novel software-driven telescope with a ~250 square degree field of view and a collecting area of ~8000 square metres. The telescope is located at the Dominion Astrophysical Observatory (DRAO), and was designed for the Canadian Hydrogen Intensity Mapping Experiment (CHIME). This thesis follows the development of components in the later stages of the CHIME/FRB pipeline, where the focus shifts from detection to classification. These developments include: algorithms to group detections over multi-dimensional search spaces and uniquely identify single-pulses; an algorithm to sift candidate events resembling radio-frequency interference (RFI), with preparations for the application of machine learning classifiers; a method for localizing bright bursts, exchanging memory and precomputation for sub-millisecond execution time; and an architecture for the event-based pipeline, designed to scale to an arbitrary number of CPU cores and machines. Finally, a stress test of the event-based pipeline was performed, using simulated events based on the known pulsar population. The pipeline comfortably handles 300,000 fake events spanning 24 hours of fake observation, reaffirming that the FRB search will not suffer the pulsar foreground." --