Old Pybombs14.04 LTS (you know stable stuff)
Installing packages:
* gr-fcdproplus
Installing from source: gr-fcdproplus
CC=gcc CXX=g++ cmake .. -DCMAKE_BUILD_TYPE=RelWithDebInfo
-DCMAKE_INSTALL_PREFIX=/home/gratcliff/Downloads/target $config_opt
CMake Error at CMakeLists.txt:32 (cmake_minimum_required):
CMake 3.0 or higher is required. You are running version 2.8.12.2
cmake 3 won't likely come to and LTS packages for a while.
Thanks in advance,
Greg Gregory W. Ratcliff
From: Jose Ruvalcaba <[email protected]>
To: [email protected]
Sent: Monday, April 4, 2016 7:41 PM
Subject: [Discuss-gnuradio] Trying to build a DVB-S2 LDPC decoder
Hello,I am new to GNU radio and to SDR's and I am trying to implement a DVB-S2
LDPC decoder block that can be used with the LDPC DVB-S2 encoder available in
GNU radio. I have been able to write an LDPC decoder which uses a 16,200 long
parity check matrix used only for a DVB-S2 short frame, rate = 1/4 code. The
problem is that when running my written block it's taking a long time to decode
one iteration of data(about an hour long). I was wondering if anyone has any
advice in how to go about writing code for FEC blocks, especially LDPC codes,
which will be used in GNU radio and eventually in an SDR? In other words, are
there certain libraries that should be used when trying to write FEC decoders
in gnu radio? How could I make a GNU radio FEC block which takes in a codeword
length 16,200, like the one in DVB-s2, to work in a USRP? Is it smart to make
my large (12960 x 16,200) parity check matrix using the standard 'vector'
library in C++? Any advice, tips and suggestions will be greatly
appreciated.Thanks,
Jose
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