Thank you for replying back! Absolutely, I’ve posted my flowgraphs on
Here’s the link: http://imgur.com/a/a0KCX
Also, for some reason, I think it could be because I’m using the
analyzer’s tracking generator?
P.S I’ve done a couple of changes since my last email:
- My sample rate is now 10M
- My filter taps for the channelizer are being calculated as you told
earlier: firdes.low_pass(1.0, samp_rate, samp_rate/(nchan2.15),
- Assuming that the tracking generator is at fault, and everything else
the design is good, it works perfectly fine for a 2M sample rate, but
I try using a higher sampling rate say 10MHz, I get strange results
leads me to believe that there’s something wrong in my design, though I
just can’t put my finger on it. One of the pictures is when I’m asking
channelizer to make a total of 8 channels, and the other one is where
asking the channelizer to create 20 channels. (Only 6 of which are being
plotted in both cases). Is the way I’m calculating my filter taps at
here or is it perhaps something else?
Date: Tue, 03 Mar 2015 09:42:19 +0100
From: Marcus M?ller [email protected]
To: [email protected]
Subject: Re: [Discuss-gnuradio] Confusion, help please
Message-ID: [email protected]
Content-Type: text/plain; charset=“windows-1252”
Would you mind sharing the flow graph that you use?
PS: Although using adblock plus, before I see every other picture on
tinypic, I get stuff like casino advertisment, and similar.
Could you use any image hoster that doesn’t block view on the pictures
with advertisement? I found imgur.com to work fairly well.
On 03/03/2015 12:27 AM, Ali R. wrote:
I just had a quick question regarding the polyphase channelizer. As a
start, I’m trying to divide an input spectrum into 6 channels of equal
width. My sample rate for now is 5 MHz and the way I’m calculating the
taps as follows:
firdes.low_pass2(1.0, samp_rate, samp_rate/(nchan2.15),
attenuation_dB = 10, window = firdes.WIN_HAMMING)