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gr-satnogs
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Manolis Surligas f8b847077e CW signal to Morse Symbol decoding block 
The CW symbol decoder block takes as input the power of the processed
signal and tries to identify the dot and dash symbols. It produces
asynchronous messages containing the decoded symbols. The output
messages can be directly used by the Morse code decoder block, in order
to retrieve the clear text message.

There are some few thing that need to be done for the block to be fully
operational.
 		2016-01-27 22:57:53 +02:00
..
.gitignore Add matched filter implementation for CW noise reduction 2016-01-17 23:59:05 +02:00
README.md Add matched filter implementation for CW noise reduction 2016-01-17 23:59:05 +02:00
morse_decoding_flowgraph.grc CW signal to Morse Symbol decoding block 2016-01-27 22:57:53 +02:00
morse_ref.wav Add matched filter implementation for CW noise reduction 2016-01-17 23:59:05 +02:00
test_matched_filter.grc CW signal to Morse Symbol decoding block 2016-01-27 22:57:53 +02:00
test_morse_decoder.grc CW signal to Morse Symbol decoding block 2016-01-27 22:57:53 +02:00

README.md

Examples

This directory contains a set of useful examples and flowgraphs for testing and demonstrating the performance of the different components of this OOT module

Files

  • morse_ref.wav : This is a reference file containing the HELLO WORLD message. The file is sampled at 8 KHz and the audio frequency is 700 Hz. The Morse code Words per Minute (WPM) is about 20.

Flowgraphs

  • test_matched_filter.grc: Demonstrates the performance of the implemented matched filter for CW decoding.