You'll have to add a bit of decision making logic that looks for the not
allowed conditions ... but if its really random, as the hitch hikers guide
to the galaxy tells us .. anything could happen , to quote ' MUST ALWAYS
occasionally be seen' looks like 'it' has started already ...
'Don't Panic'
G ..
--------------------------------------------------
From: "Andy Talbot" <[email protected]>
Sent: Saturday, February 21, 2009 9:40 AM
To: <[email protected]>
Subject: LF: Wanted - non-random PN sequence generator - so Off Topic it
shouldn't be allowed here!
...but if any mathematicians, number theorists or cryptographers
should be reading this...
I've just got a WSPR generating routine running on a PIC / AD9852 /
GPS combination, but I'm looking for a half-decent way of generating a
pseudo random Tx/Rx sequence with defined duty cycle that does not
give the long(ish) consecutive runs of 0's or 1's that MUST ALWAYS
occasionally be seen in a truly random sequence.
In other words, the sequence needs to be bandpass filtered.
Before I cop-out and just use a pre-generated set of lookup tables,
take a look at http://www.g4jnt.com/WSPR_PN_Sequence.pdf
for a fuller description of the mind-bender
Andy G4JNT
www.g4jnt.com
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11:05:00
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