The eewls(Electronic Engineering WireLess)project provides a SOC(System on Chip) solution for AM/FM audio dcoder and some other modules for you to build an audio decoder or learn gnu-raido through our code.

All runnable codes are under example/. Those *.grcs are grc files that show the system structure and *.pys are python files that can be run directly with python *.py. More specifically, those ones end with _0 are mostly built upon raw gnuradio module and gr-baz. Those ones end with _1 are built with gr-eewls, which packs the whole system into a single module.

In the following part, a Respberry pi and a rtl-sdr hardware are required.

If you are gonna run the program on your linux pc version, everything will be fine. However, if you are gonna run the program on Windows, we are not sure whether you will encounter any strange problems or not.

pls refer to this site for more information. You are recommended to install the ubuntu mate on which we have tested the whole system.

The whole system is built upon python 2.7.*, and is not tested on python 3 or earlier python 2 version.

sudo apt install gnuradio

git clone https://github.com/balint256/gr-baz.git
cd gr-eewls
mkdir build
cd build
cmake ../
make
sudo make install
sudo ldconfig

Sometimes, when you have built the system and try to run a simple demo, the system crashed and says 'No mudule named baz_swig' or some other modules with the _swig suffix. On such occasion, just install swig first with sudo apt install swig, then rebuild and reinstall gr-baz.

Also libusb is required to build gr-baz(sudo apt install libusb-1.0-0-dev).

Other dependency: armadillo, uhd(neglectable, but will bring some performance gain).

# install uhd through apt-get
sudo apt-get install libuhd-dev libuhd003 uhd-host
# install armadillo(we assume you are in the armadillo folder)
cmake .
make
sudo make install

git clone https://github.com/XgDuan/gnu-radio-am.git
cd gr-eewls
mkdir build
cd build
cmake ../
make
sudo make install
sudo ldconfig