Signal Metadata Format
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| Filename extensions | .sigmf-data .sigmf-meta |
|---|---|
| Developed by | The GNU Radio Foundation |
| Initial release | February 1, 2017 |
| Latest release | v1.1.0 (January 16, 2023) |
| Type of format | time-series |
| Container for | Time series |
| Contained by | JSON |
| Website | sigmf |
Signal Metadata Format (SigMF) is a describes recorded digital signal time series typically capturing real or complex-valued radio signals, acoustic waves, antenna positions, or sensor voltages.[1] The metadata is contained in a JSON file with a .sigmf-meta extension typically adjacent to the actual binary data stored in a file with a .sigmf-data extension. The ability to extend the built-in specification by defining a formal .sigmf-ext.md has spurred use by by the NTIA[2], Northeastern University[3], National Instruments[4], and several published datasets. These extensions allow additional hierarchical data added to a whole dataset, a capture, or a region of the recording.
SigMF is used, notably, as an interchange format for the data processing pipeline of the SETI Breakthrough Listen at the Green Bank Observatory.[5]
Other Radio Time-Series Formats[edit]
Prior to the standardization of SigMF, time series data representing radio signals were most commonly kept in flat binary files with external descriptors. Researchers sometimes placed this data within HDF5 (.hdf5) containers, but those containers are not specific to any type of data. Occasionally VITA 49 (.vrt) is used to store RF data, but that specification is designed as a transport format for RF signals and not for accessible data storage.
References[edit]
- ↑ Hilburn, Ben (2018). "SigMF: The Signal Metadata Format". Proceedings of the GNU Radio Conference. 3 (1).
- ↑ "ITS Releases Open Metadata Extensions for Sharing and Reusing RF Measurement Data". its.ntia.gov. April 2, 2020. Retrieved July 15, 2022.
- ↑ "Datasets for RF Fingerprinting". Retrieved July 15, 2022.
- ↑ "Using Generative AI To Connect Lab To Fab Test". Retrieved Aug 29, 2023.
- ↑ Croft, Steve (December 15, 2005). "SETI Open-Data". seti.berkeley.edu. Berkeley SETI Research Center. Retrieved July 14, 2022.
External links[edit]
- SigMF Official website for current specification & documentation.
- SigMF Python Package for reading, writing, and editing datasets.
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