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Re: [Discuss-gnuradio] Sharing variable

From: Luis urday
Subject: Re: [Discuss-gnuradio] Sharing variable
Date: Tue, 26 May 2015 11:05:19 +0200

Thank you  for your reply Marcus, I don't work with Anil.

I am going to implement the message passing solutions .


2015-05-26 8:57 GMT+02:00 Marcus Müller <address@hidden>:
That would be a typical usage scenario for stream tags (because the estimate can actually be "attached" to specific sample). I recommend going through [1] Chaper 1 to 5, where 5.2 explains the usage of stream tags.

Best regards,
[1] https://gnuradio.org/redmine/projects/gnuradio/wiki/Guided_Tutorials

On 05/26/2015 08:37 AM, address@hidden wrote:
Hi Marcus,

An example I can think of is let's say there's a channel estimation block followed by an equalizer block. 

Let's say the channel estimator estimates the channel by looking for a training sequence in the incoming data. Once it finds the training sequence it needs to transfer the data into the equalizer which it will through its output port. 

But how is the channel vector sent to the equalizer? Its not going to be a constant stream, it may just be a fixed vector of so and so number of taps. Is there a way to make the equalizer see this channel vector?


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