Re: Baseband signal generating.

[Christophe Seguinot]

Hi

Your amplitude is set in constellation object, in the constellation points list.

At present yours is +-1 for BPSK, and +-1+-j for QPSK

So amplitude is 1 (+-1) for BPSK and 1.414 for QPSK

This must be adjusted to your requirements (-0.5,0.5) for BPSK

Regards

On 15/11/2019 11:03, Md. Atiqur Rahman wrote:

Hello there, I am working on generating a baseband signal by using GNU-Radio. I have chosen a random signal along with the constellation modulator and constellation object. However, I go through all settings for these blocks but don't find the setting option for signal 'Amplitude'. How can I be sure that my generating amplitude (let say peak to peak)?

I can see the signal amplitude in QT GUI Time Sink but I am not sure how its amplitude define here in this scheme. It seems like signal amplitude is 2v peak to peak. Is it right? But I want to generate a baseband signal which will have 1v peak to peak.  Thank you.

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Sincerely,

Hasan