how to modulate a .wav file message using PSK?

[celia]

Hi

I'm trying to do PSK modulation & demodulation. The message being .wav file contents. Now to do this is it required to specify the synchronisation parameters such as sync bits, guard bits etc., if so what is the .wav file format.

I'm getting memory insufficient error for the below vi. Someone tell me am I right in doing the modulation and demodulation like this.

I'm using 7.1 version.

Someone help me

Thanks

Celia

[Chris_Cilino]

Celia,

I'm guessing that you'll need to post your code for this one.

Chris C

[celia]

Hi,

I want to know whether  my code is right.  How to retrieve the information without any error because after demodulation there will be some error since I'm not using any sync or guard bits.

Here's the code. It's in 7.1 version.

Thanks 

Celia 

[celia]

Hi Chris

Did u check my code. I'm in badly need of help.

Celia

[Kalyanramu]

Hi Celia,

Yes you would need sync and guard bits.

Please look at the documentation for MT Demodulate PSK.If the synchronization parameters input cluster is not wired, the demodulator does not attempt to locate a sync, and the constellation of the demodulated waveform has a 90° carrier phase ambiguity.

http://sine.ni.com/apps/we/niepd_web_display.display_epd4?p_guid=F0F7E568D2AA21DAE0340003BA7CCD71

or Please look at the example MT PSK Transceiver(with FFT Spectrum).vi

You can tweak this example for your application.

Thanks,

Kalyan