Yes I am setting fft for magnitudes. On the front side, I am doing a
log. I perfectly understand where infinity comes from. I don’t
understand why the FFT returns 0. But how can I configure the Window?
пт, 22 окт. 2021 г. в 01:51, Marcus D. Leech <patchvonbr...@gmail.com>:
> On 2021-10-21 6:40 p.m., Ivan Zahartchuk wrote:
>
>
> Hello, I have a problem that when receiving samples from the USRP E310 board,
> after the FFT block at low gain, zero values are received. After that I log
> them and get infinity. I wanted to figure out what the problem is, but I have
> no idea, maybe the Window block will fix the situation. But when building my
> yaml file, I get the error:
> [ERR] 2 Unresolved connection(s)
> [ERR] (window0-out_0 -> fft0-in0)
> [ERR] (fft0-out_0 -> ep1-in_0)
> [INF] (('radio0', 'ctrl_port', 'master'),)
> [INF] (('radio0', 'time_keeper', 'listener'),)
> [INF] (('radio0', 'x300_radio', 'slave'),)
> [INF] (('_device_', 'ctrlport_radio', 'slave'),)
> [INF] (('_device_', 'time_keeper', 'broadcaster'),)
> [INF] (('_device_', 'x300_radio', 'master'),)Please tell me what
> could be the problem and how can I add the Window block to my image?
>
>
>
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> Do you have your FFT configured for log output? Because the logarithm of
> zero is undefined.
>
>
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