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Re: [Discuss-gnuradio] Mixing two signals for Radar application.
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From: |
Martin Braun |
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Subject: |
Re: [Discuss-gnuradio] Mixing two signals for Radar application. |
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Date: |
Thu, 27 Mar 2014 09:56:07 +0100 |
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User-agent: |
Mozilla/5.0 (X11; Linux x86_64; rv:24.0) Gecko/20100101 Thunderbird/24.4.0 |
On 03/26/2014 03:18 PM, Dimitris Siafarikas wrote:
> Hi list,
>
>
> I am in the process of building an FMCW radar. For this to work, I have
> to mix two signals. I tried to do it with the "multiply" block but no
> luck. I tried then to see how exactly this block works. It seems that it
> does not behave As it should be. Referring to theory, I should see the
> sum and the difference of the two signals. Looking at the FFT plot, I
> can't say that works.
That's true for real mixing. I assume you're doing complex multiplying.
M