setigen_ is a Python library for generating and injecting artificial narrow-band signals into radio requency data. setigen_ interfaces primarily with two types of data: spectrograms or dynamic spectra, saved in two-dimensional NumPy arrays or filterbank files (.fil extension), and raw voltages (GUPPI RAW files). Both data formats are instrumental to Breakthrough Listen's data collection and analysis pipelines.
setigen_ allows the user to generate synthetic signals quickly in the time-frequency domain in the form of data Frames. Furthermore, the user may inject these synthetic signals into real observational data loaded from filterbank files. setigen_ plays well with the blimpy_ package.
The setigen.voltage module enables the synthesis of GUPPI RAW files via synthetic real voltage "observations" and a software signal processing pipeline that implements a polyphase filterbank, mirroring actual BL hardware. The voltage module supports single and multi-antenna RAW files, and can be GPU accelerated via CuPy.
Breakthrough Listen @ Berkeley: https://seti.berkeley.edu/listen/
install getting_started basics frame_methods advanced cadences voltages setigen setigen.voltage
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