Re: [Discuss-gnuradio] ssb - question

[Jeff Long]

Your first problem is that you're using a 32k sample rate with a 20k 
sin/cos. This will actually come out as a 12k sin/cos, due to aliasing. 
Try the same thing again with a 48k sample rate and see what happens.

Either bandpass filtering or a Hilbert transform can be used to create SSB.

Not sure what your flowgraph does, but it looks fun.

Jeff.

On 09/08/2015 08:48 AM, Przemek Lewandowski wrote:
> Hi everybody
>
> Im trying to make SSB modulation with Hilbert transform. And Im using IQ
> modulator
> here is schema:
> http://postimg.org/image/gms5srret/
>
> And I have a question. In Frequency domain there should be one peak, and
> on on my plot there is one - that is good, and second that is
> smaller/suppressed.
>
> Is something wrong ?? or is it normal ??
>
> Is Hilbert method for creating SSB signal is good ?? or can it be made
> easier ???
>
>
> thank you very much.
> Przemek Lewandowski
>
>
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