Tom Rondeau [Sat, 1 May 2010 23:06:13 +0000 (19:06 -0400)]
Fixes the replotting update. It's now based on a QTimer so it's in the event buffer as opposed to a best effort based on a hand-made timer. The interval between GUI updates is settable through the qtsink_X objects with set_update_time(newtime). This update makes the plotting much more stable. It also fixes the time scale of the waterfall plot to actually mean the right thing.
Tom Rondeau [Sun, 18 Apr 2010 21:51:43 +0000 (17:51 -0400)]
Fixing doxygen warnings from arb_resampler. Also, removed set_taps from public
interface since we don't _really_ suppor this right now. Renamed it and made it private.
Applied patch from Srinivas Vutukuri to have tx_samples accept -g
Date: Tue, 19 Jan 2010 18:15:08 +0530
From: srinivas naga vutukuri <srinivas.vutukuri@gmail.com>
To: discuss-gnuradio@gnu.org
Subject: [Discuss-gnuradio] tx_samples.cc is not accepting the gain
parameter input.
Hi,
I observed that tx_samples.cc is not accepting the gain input parameter
(ie., -g option). I just changed like this in my code.
Its working, so posting the changes. If it is acceptable please take it.
Tom Rondeau [Tue, 13 Apr 2010 01:22:20 +0000 (21:22 -0400)]
The oversampling rate can be only a few values as defined by the number of channels and input sample rate.
This now checks to make sure the user-specified rate is valid.
Also added some documentation to describe the oversample rate parameter.
Tom Rondeau [Tue, 13 Apr 2010 00:45:10 +0000 (20:45 -0400)]
Channelizer can now produce any rational ratio of the sample rate in [fs/N, fs] where fs is the input sample rate and N is the number of channels. The ratios work out to be N/i for i in [1, N].
Tom Rondeau [Fri, 9 Apr 2010 04:40:36 +0000 (00:40 -0400)]
Every other time through the channelizer, the FFT input buffer must be flipped. The commented code removed in this checkin does that through a calculation in the loops, but the way the filter assignment works with this code, the flip is done by keeping the indexing static, so a look up table works and is slightly faster.
Tom Rondeau [Fri, 9 Apr 2010 04:37:03 +0000 (00:37 -0400)]
Working version of channelizer allowing an integer multiple of the sampling rate out.
There are two versions of the code in here with the second way being more general and efficient. This one should be more extendable to allowing rational ratio output sampling rates.
Johnathan Corgan [Sun, 21 Mar 2010 23:17:15 +0000 (16:17 -0700)]
Add new block gr.additive_scrambler_bb()
This block performs scrambling by XORing the input sequence with
the output of an LFSR. Repeating this operation restores the original
sequence.
(This differs from gr.scrambler_bb(), which convolves the input sequence
with the LFSR output.)
The additive scrambler allows an optional bit count after which the LFSR
is reset to its initial seed. This allows use with, e.g., packetized
fixed length payloads.
Tom Rondeau [Mon, 15 Mar 2010 02:53:53 +0000 (22:53 -0400)]
Removing SSE version of FFT filter until we work out how we want to handle the SSE the use of intrinics. Code for the SSE versions is still there just disabled.
Tom Rondeau [Sun, 14 Mar 2010 21:32:23 +0000 (17:32 -0400)]
Making old and new digital modulations completely seperable by adding modulation_utils2 so only new modulator blocks work with the version 2 of everything. Also changed some internal names for clarity.
Eric Blossom [Thu, 4 Mar 2010 15:02:42 +0000 (07:02 -0800)]
Refactor gr-howto-write-a-block such that it no longer installs into
the gnuradio python namespace, but rather in the howto namespace.
This allows it to be installed under a separate --prefix in the common
case where the user doing the "out of tree build" is going to be
installing their new and/or modified code somewhere other than the
system installation directories.
Any code that uses these blocks should now import them using: