History

Manolis Surligas 9e43258205 Update the README description for the examples directory		2016-03-08 23:25:08 +02:00
..
.gitignore	Add matched filter implementation for CW noise reduction	2016-01-17 23:59:05 +02:00
Goliat_Morse_8k.wav	Improve the Morse decoder block	2016-02-28 00:45:41 +02:00
README.md	Update the README description for the examples directory	2016-03-08 23:25:08 +02:00
ax25_example.grc	Finish the AX.25 decoder and add a UDP message source block	2016-03-08 23:19:17 +02:00
morse_decoding_flowgraph.grc	Improve the Morse decoder block	2016-02-28 00:45:41 +02:00
morse_decoding_goliat.grc	Improve the Morse decoder block	2016-02-28 00:45:41 +02:00
morse_ref.wav	Fix CW decoder issue	2016-02-01 22:04:27 +02:00
test_matched_filter.grc	Improved Morse decoding	2016-01-30 21:37:36 +02:00
test_morse_decoder.grc	Improve the Morse decoder block	2016-02-28 00:45:41 +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.
morse_decoding_flowgraph.grc: This flowgraph decodes a CW signal and prints the corresponding message at the stdout. To demonstrate the capabilities of the decoder, signal and noise power GUI sliders are provided for easy testing and experimenting.
ax25_example.grc: This flowgraph semonstrates the AX.25 encoder and decoder. It has two different AX.25 payload source blocks. The first one is the Debug Message Source block that assigns as payload a predefined message, whereas the second one is a UDP Message Source block that receives the AX.25 payload from a UDP packet.