From charlesreid1

No edit summary
No edit summary
 
(One intermediate revision by the same user not shown)
Line 5: Line 5:
Not sure how to organize this stuff, so I'll start putting notes for individual projects, and go from there.
Not sure how to organize this stuff, so I'll start putting notes for individual projects, and go from there.


=Signal Decoding=
=Topics=
 
==Signal Decoding==


[[Gnuradio/Wav to Waterfall]] - the first step to signal identification and decoding is being able to play back known signals in gnuradio from wav files. This is a basic flowchart that takes a wav file and runs it through a waterfall spectrum visualizer.
[[Gnuradio/Wav to Waterfall]] - the first step to signal identification and decoding is being able to play back known signals in gnuradio from wav files. This is a basic flowchart that takes a wav file and runs it through a waterfall spectrum visualizer.
Line 15: Line 17:
[[Gnuradio/2015-08-18]] - think I got the baud rate of the satellite signal.
[[Gnuradio/2015-08-18]] - think I got the baud rate of the satellite signal.


=Antennas=
==HackRF==


Slinky antenna receiver with SDR dongle: https://www.youtube.com/watch?v=snQjiZ9zGv4
Some notes on the [[HackRF]] SDR board

Latest revision as of 03:25, 3 June 2016

uh, http://hackaday.com/2013/05/06/tracking-ships-using-software-defined-radio-sdr

SDR = software defined radio

Not sure how to organize this stuff, so I'll start putting notes for individual projects, and go from there.

Topics

Signal Decoding

Gnuradio/Wav to Waterfall - the first step to signal identification and decoding is being able to play back known signals in gnuradio from wav files. This is a basic flowchart that takes a wav file and runs it through a waterfall spectrum visualizer.

Gnuradio/Frequencies of Interest - the next step to signal identification and decoding is being able to narrow in on the interesting frequencies. This is a basic flowchart for narrowing in on a particular frequency for a particular signal.

Gnuradio/2015-08-17 - still working on trying to understand this satellite signal.

Gnuradio/2015-08-18 - think I got the baud rate of the satellite signal.

HackRF

Some notes on the HackRF SDR board