See also https://www.wisdomandwonder.com/emacs/11659/blogging-with-emacs%f0%9f%90%83-from-org2blog%f0%9f%a6%84-to-wordpress
for a description of org2blog.

An open source Global Navigation Satellite Systems software-defined receiver.
Based on GNU radio.

Search for various input methods (HTML entities, URL encoding, etc.) for unicode characters.

Mailing list for fans of the incompatible timesharing system (ITS).

Skyfield computes positions for the stars, planets, and satellites in orbit around the Earth. Its results should agree with the positions generated by the United States Naval Observatory and their Astronomical Almanac to within 0.0005 arcseconds (which equals half a “mas” or milliarcsecond).

   Written in pure Python and installs without any compilation.
   Supports Python 2.6–2.7 and Python 3.3–3.5.
   Has NumPy as its only binary dependency, the fundamental package for scientific computing with Python, whose vector operations make Skyfield efficient.

Collection of FFT and related algorithm implementation in various programming languages.

EISL was written by Kenichi Sasagawa
https://qiita.com/sym_num/items/793adfe118514668e5b0
I have not found a license statement.

The Galileo satellites metadata are information about the satellite properties which need to be known in order to properly implement advanced processing algorithms for precise orbit determination or Precise Point Positioning (PPP). These include physical characteristics such as mass, area or reflectivity, the attitude law and antenna parameters such as phase center offsets and variations. More information about PPP and GNSS data processing can be found in [3], [4] or [2]. For Galileo SIS details, please refer to [1].

[1] European GNSS (Galileo) Open Service Signal In Space Interface Control Document. European Union, 2016.
[2] B. Hofmann-Wellenhof. Global Positioning System Theory and Practice. Springer, 2001.
[3] J.M. Juan Zornoza J. Sanz Subirana, M. Hernández-Pajares. GNSS DATA PROCESSING. European Space Agency, 2013.
[4] A. Leick. GPS Satellite Surveying. Wiley-Interscience, 1994.

Collection of interesting articles. Found via
https://fermatslibrary.com/s/the-tunnel-of-samos#email-newsletter
from a post on MoHP.

Recently "Lama Bleu" has been working on a custom firmware image for the PlutoSDR. Installing custom firmware allows you to load up a pre-configured Linux system which already has a bunch of useful software installed. He writes that his version is not designed to have a nice GUI, but rather focuses on scripting and data acquisition software.