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Re: packetized audio transmission using GMSK modulation
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From: |
Marcus Müller |
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Subject: |
Re: packetized audio transmission using GMSK modulation |
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Date: |
Tue, 11 Aug 2020 12:56:08 +0200 |
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User-agent: |
Mozilla/5.0 (X11; Linux x86_64; rv:68.0) Gecko/20100101 Thunderbird/68.10.0 |
No, you're not right! The output spectrum is input spectrum, point-wise
multiplied with system spectrum (the bell shape). If your input was
white, you'd be multiplying your bell shape with a constant and would be
getting a bell shape.
Since your input isn't white, you're not doing that and not getting the
bell shape – this is really basic.
Best regards,
Marcus
On 11.08.20 12:45, Amir Hossein Aalipour wrote:
> Hi, thank you for your reply
> If by "white data" you mean random (pseudo noise) data, I should say no. It
> is the samples of the audio file (you can see in the flow graph below). But
> even if it was random, when modulated by GMSK, it should have the
> bell-shaped spectrum!? Am I right?
> Thanks.