GNU Radio Tutorials: Part 4 - Phase-Shift Keying (PSK), Constellations & Auto-correlation

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Playlist:    • GNU Radio Tutorial Series  

Fast Auto-correlation Sink: http://wiki.spench.net/wiki/Fast_Auto...
Extra modules & patches: http://wiki.spench.net/wiki/gr-baz
Notes: http://wiki.spench.net/wiki/GNU_Radio...

References:
http://en.wikipedia.org/wiki/Phase-sh...
http://iaci.unq.edu.ar/materias/telec...
http://en.wikipedia.org/wiki/Differen...
http://en.wikipedia.org/wiki/Intersym...
http://www.complextoreal.com/chapters...
http://en.wikipedia.org/wiki/Raised-c...
http://en.wikipedia.org/wiki/Quadratu...
http://en.wikipedia.org/wiki/Additive...
http://www.cv.nrao.edu/course/astr534...
http://crca.ucsd.edu/~syadegar/Master... (Power spectrum)
http://en.wikipedia.org/wiki/GPS_signals
http://en.wikipedia.org/wiki/Code_div...

Time-based TOC:

00:42 Random Source
01:19 UChar to Float
01:56 DPSK Modulator
02:12 Phase Shift Keying
05:35 Differential coding
08:42 DPSK Properties
10:23 Position of Throttle
11:05 Constellation Sink Properties
12:00 Fast Auto-correlation Sink
12:57 Demo
12:58 FFT Plot of PSK with no noise
13:15 Fast Auto-correlation of PSK
13:37 Scope Plot of Random Source
13:45 Histogram Plot of Random Source
14:11 Signal Scope of PSK with no noise
14:34 Waterfall of PSK with no noise
14:44 Constellation Plot of PSK with no noise
15:14 Analysis of Gaussian noise with FFT Plot and Histogram
15:39 Additive White Gaussian Noise (AWGN)
16:31 FFT of PSK with noise
16:43 Scope of PSK with noise
16:52 Waterfall of PSK with noise
17:00 Constellation of PSK with noise & Line Link mode
18:46 XY Scope of PSK with noise & Line Link mode
20:13 Auto-correlation of PSK with noise
20:33 Calculation of Auto-correlation analysis duration
22:18 Wrap-around on auto-correlation
23:04 Auto-correlation below the noise floor
23:50 Averaging on Fast Auto-correlation
23:57 CDMA
25:05 Averaged auto-correlation
25:50 Re-cap of Auto-correlation duration calculation
26:17 Calculating position of first FAC peak
27:53 Modulating using QAM
28:36 Constellation Plot of QAM
28:57 Scope Plot of QAM
29:09 Waterfall Plot of QAM & repeating 'blocks'