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| From: | Ivan Zahartchuk |
| Subject: | Re: [USRP-users] Re: Fwd: Adding a Window block to an RFNOC graph |
| Date: | Fri, 22 Oct 2021 13:05:05 +0300 |
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?_______________________________________________On 2021-10-21 6:40 p.m., Ivan Zahartchuk wrote:
Do you have your FFT configured for log output? Because the logarithm of zero is undefined.
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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