Re: Interpolating FIR Filter - sample delay

2022-04-25 Thread Daniel Estévez
Hi Marcin, What I mean is that currently we need to entering group_delay // interpolation_factor in the Sample Delay field. And that number needs to be an integer. So unless group_delay is divisible by interpolation_factor we won't get exactly the correct delay in the output (just consider

Re: Interpolating FIR Filter - sample delay

2022-04-25 Thread GNU Radio, the Free & Open-Source Toolkit for Software Radio
Hi Daniel, Thank you for your detailed response. Indeed, that's what I do now is to set the Sample Delay equal to: filter group delay divided by an interpolation factor. One thing I don't understand in your response is: *"However, I don't think this is a very good solution, because it forces*

Re: Interpolating FIR Filter - sample delay

2022-04-24 Thread Daniel Estévez
El 22/4/22 a las 11:32, Marcin Puchlik via GNU Radio, the Free & Open-Source Toolkit for Software Radio escribió: Hello I was playing with the Interpolating FIR Filter Block and noticed that the mentioned filter delays tags not properly. What I mean is that when the interpolation factor is

Re: Interpolating FIR Filter - sample delay

2022-04-23 Thread Cinaed Simson
Hi - first, it appears you're using version 3.7.x of gnuradio which is no longer supported. The constellation encoder for your version appears as a missing block on 3.8. Second, there was no constellation posted for some reason. Third, it appears you're using 2 stream sources and a streaming

Interpolating FIR Filter - sample delay

2022-04-22 Thread GNU Radio, the Free & Open-Source Toolkit for Software Radio
Hello I was playing with the Interpolating FIR Filter Block and noticed that the mentioned filter delays tags not properly. What I mean is that when the interpolation factor is different than 1, then the filter delays the tags by the *Sample Delay * Interpolation factor* value. In my opinion this