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436MHz DATV Up-Converter (245)
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Cluster Activity

Spots per uW band today:
UK spotter or spotted only.

Solar data:
SFI
70
A-Index
26
K-Index
2
Exp.K
0
Sunspots
12
Activity
qui
GMF
qui
Aurora?
no

My Weather

Date:16/01/18 Time:19:18
Temp:1C
Wind Speed:7.5mph
Wind Dir:225deg
Pressure:984.55mB
Humidity:118%
Dew Point:4.6C
UKHASnet
DSP#0 Learning DSP!

Here i plan to make some code snippets as i go along to maybe help others do what i found very difficult when first learning about Digital Signal processing.
Nothing here will be perfect but the ideas are there to get you started, and then hopefully correct my mistakes!

Basically this is code that takes in IQ samples from an sdr receiver like the rtl dongle.
Idea is to make blocks of code that do the different parts of the dsp chain to receive an SSB and fm signal etc...

Eventually a chirp receiver too if i'm lucky!

More will be added when i get round to it!


See DSP# in the headers for related bits.

Rob



Code 'beautifying'! is done with http://hilite.me/


Command line example:
rtl_sdr -p 70 -f 144750000 -s 1024000 - | ./mixer | ./decfir | ./ssbdemod | aplay -c 1 -t raw -r 32000 -f FLOAT_LE -











Last page added:07/01/18 10:15
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