morse-wip/README.md

(C) 2013  AG1LE Mauri Niininen 

This software is a Morse decoder orinally created by Dr. E. L. Bell in 1977.  
The software was manually entered from Fortran program listings and later converted to C++
by AG1LE Mauri Niininen.  

DEPENDENCIES:
- libsndfile1-dev  -- used to open WAV sound files 
- fftw3-dev        -- used for FFT calculation
- tcl              -- used for running cer vs snr testing
- sqlite3          -- used to store test results in SQL database 
- libsqlite3-tcl   -- used by tcl to call sqlite3 

install dependencies by 

sudo apt-get install libsndfile1-dev fftw3-dev
sudo apt-get install tcl
sudo apt-get install sqlite3
sudo apt-get install libsqlite3-tcl
Initial version, still very buggy. 2013-09-02 02:22:27 +00:00			`(C) 2013 AG1LE Mauri Niininen`

			`This software is a Morse decoder orinally created by Dr. E. L. Bell in 1977.`
v01 C++ decoders works now. Added decoding logic in transl.c 2013-09-02 17:07:28 +00:00			`The software was manually entered from Fortran program listings and later converted to C++`
			`by AG1LE Mauri Niininen.`

Added morse.m and addnoise.m - these are Octave scripts to generate noisy morse code 2014-08-29 21:20:46 +00:00			`DEPENDENCIES:`
			`- libsndfile1-dev -- used to open WAV sound files`
			`- fftw3-dev -- used for FFT calculation`
			`- tcl -- used for running cer vs snr testing`
			`- sqlite3 -- used to store test results in SQL database`
			`- libsqlite3-tcl -- used by tcl to call sqlite3`
Changed program name to bmorse (b stands for bayesian). Cleaned up all files and changed morse.h tp bmorse.h 2013-DEC-29 Added more options to enable debugging and testing bmorse decoder while using WAV audio files as source. Bit filter (-bfv) option does envelope smoothing - 10 msec rise time assumption based on experiences with FLDIGI. Plot option (-plt) enables piping such as "bmorse -plt <sndfile> \| xplot" to visualize the CW envelope. AGC option (-agc) has fast rise and slow decay in case original signal has very large dynamic range. AMP option (-amp) allows to multiply envelope signal with a constant. DUR option (-dur) allows manually to set Bayesian decoder sample duration (used in path.c). FFT option (-fft) enables either FFT based signal recovery or just low pass filtering. - FFT has also peak_detection() to find if there are multiple signals in the audio frequency range. - Parameter "delta" sets peak detection threshold - Width (-wid) and length (-len) parameters can be used to set FFT size and chunking 2013-12-30 04:59:42 +00:00
Added morse.m and addnoise.m - these are Octave scripts to generate noisy morse code 2014-08-29 21:20:46 +00:00			`install dependencies by`

			`sudo apt-get install libsndfile1-dev fftw3-dev`
			`sudo apt-get install tcl`
			`sudo apt-get install sqlite3`
			`sudo apt-get install libsqlite3-tcl`
removed F2C dependencies. 2013-09-30 00:46:19 +00:00