`lms2fits` is a dual-channel spectroscopic receiver for radio astronomy that employs theLimeSDR's LimeSDR-USB dual-channel transceiver, which in turn employs Lime Microsystems' LMS7002M transceiver chip. These systems allow a frequency-agile (<30 MHz to 3.8 GHz) receiver providing Stokes parameters in dynamic spectra of up to 60 MHz analog bandwidth streamed to a FITS file with three-axis primary table. It runs on linux under .Net.

Features

  • Fourier-transform-type spectral analysis for 100% data utilization; multiframe poly-phase filter bank.
  • Output streamed to FITS file with comprehensive metadata.
  • Utilities for device enumeration, measuring sample rate against the system clock, the measurement of sample statistics (mean and standard deviation), and for viewing the primary headers of FITS files.
  • FITS file viewer in python that permits dividing out gain models and for background subtraction.
  • Installer for dependencies and and system configuration.

Project Samples

Jovian Io-B radio burst in Stokes U+V in quadrature Jovian Io-B burst segment in Stokes V Solar type III burst cluster in Stokes I Solar type II burst in Stokes I Solar type II burst in Stokes V Propagation teepees in Stokes U

Project Activity

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License

MIT License

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Additional Project Details

Operating Systems

Linux

User Interface

Command-line

Programming Language

C#, Python, Visual Basic .NET

Registered

2025-12-30
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