The casacore package contains the core libraries of the old AIPS++/CASA (Common Astronomy Software Applications) package. This split was made to get a better separation of core libraries and applications.

Some non-signal processing blocks. These functions are also in gnuradio-core. Part of the main gnuradio build.

All the functions for doing digital modulation and demodulation, including bpsk, qpsk, gmsk and ofdm signals. Part of the main gnuradio build.

Handle forward error correction processing in gnuradio. Implements the GNU Radio FEC API, supporting encoders and decoders for no-op dummmy, repetition, and convolutional classes. Part of the main gnuradio build.

Library of filter blocks used in gnuradio. Implements FIR, IIR and FFT filters, as well as Polyphase filterbank and PFB arbitrary resampler methods. Part of the main gnuradio build.

Libiio is a library that has been conceived to ease the development of applications interfacing Industrial Input/Output (IIO) devices through the IIO subsystem of the Linux kernel.