10-30-2011 09:26 AM - edited 10-30-2011 09:27 AM
Hi everyone
To start with the modulation toolkit I have made the attached vi to familiarize myself with modulation blocks. The following block contains a bit generator+DSSS encoder+PSK modulation+white noise+PSK demodulation+DSSS decoder
As can be seen I have started with a basic example but I don't know why I get Error -21824 with PSK modulation block.Would u plz help me with this vi? and wud u plz let me know how can I change this vi to do QPSK modulation
Many thanks
Solved! Go to Solution.
11-01-2011 04:55 AM
Hi
I reaaly appreciate any help for this vi
11-01-2011 06:22 AM
Hi en99,
I have taken a look at your VI and have found what I think is the reason for your error message. On the MT modulation block I do not think you can wire in a constant as a cluster of system parameters, instead it must be generated using the MT Generate System Parameters.vi found in the modulation pallette.
I have quickly replaced your constant and also wired in to the demodulate vi (also requires system param.) and attached it to this post as 11new.vi.
I hope this helps.
Kind Regards,
11-01-2011 06:57 AM
Hi en99,
I also found a nice community example experiment which does both BPSK and QPSK modulation. It might be worth taking a look to help understand how to set up your VI.
You can find the example here.
Kind Regards,
11-01-2011 07:18 AM
Dear Larry
Many thanks for your quick reply. I have access to LabVIEW 2010 .wud u plz save your vi for 2010 version
11-01-2011 07:21 AM
Hi en99,
I have attached a 2010 version to this post.
Kind Regards,
11-04-2011 06:09 AM
Many thanks Larry
07-23-2014 11:57 PM
i have a the same problem.but i cant solve. Anyone can help me? how i can solve?
07-25-2014 06:46 AM