: I need to learn and have some basics at hand. I am trying to write
: code for classifying raw signal data into Marks and spaces and the
: like. I am also trying to extract encoding info from raw data bits and
: many more things. I am stumped...at this point.

You would do well to research code for "teletype" and cw morse decoding.
That would pretty much get you going in the right direction.

You might also research "autobaud" routines, rs232 related and similar.
There's a lot out on the web...

References for small board micro processors are a great help... you might
research the 8051, 8052 and pic controller chips.

Namaste...
skipp
http://sonic.ucdavis.edu