kantooon/gr-dsss

GNU radio Direct Sequence Spread Spectrum blocks

gr-dsss's Issues

Some problems about pseudo-random code synchronization

Dear kantooon,

Thank you so much for sharing. I am a graduate student from Xidian University in China. I have installed and used the module you shared. But unfortunately, when we tried to reproduce the home page routine, the data after the package decoding module was not perfectly restored. We hope to get some help from you, especially the information about the synchronization principle of the dsss_decoder module. If I can get your reply, I would be very grateful.

Best regards，
Movn

ImportError: No module named _dsss_swig

Are the build instructions correct?

I appreciate this isn't a support channel, but I've followed the build instructions, and when I run parameterized_DSSS_encode_decode.grc, I end up with:
ImportError: No module named _dsss_swig

Here is the full output of my build.

[user@gnuradio ~]$ git clone https://github.com/kantooon/gr-dsss
Cloning into 'gr-dsss'...
remote: Enumerating objects: 146, done.
remote: Total 146 (delta 0), reused 0 (delta 0), pack-reused 146
Receiving objects: 100% (146/146), 235.72 KiB | 1.59 MiB/s, done.
Resolving deltas: 100% (67/67), done.
[user@gnuradio ~]$ cd gr-dsss/
[user@gnuradio gr-dsss]$ mkdir build
[user@gnuradio gr-dsss]$ cd build/
[user@gnuradio build]$ cmake -DCMAKE_INSTALL_PREFIX:PATH=/usr/local ..
-- The CXX compiler identification is GNU 9.3.1
-- The C compiler identification is GNU 9.3.1
-- Check for working CXX compiler: /usr/bin/c++
-- Check for working CXX compiler: /usr/bin/c++ - works
-- Detecting CXX compiler ABI info
-- Detecting CXX compiler ABI info - done
-- Detecting CXX compile features
-- Detecting CXX compile features - done
-- Check for working C compiler: /usr/bin/cc
-- Check for working C compiler: /usr/bin/cc - works
-- Detecting C compiler ABI info
-- Detecting C compiler ABI info - done
-- Detecting C compile features
-- Detecting C compile features - done
-- Build type not specified: defaulting to release.
-- Found Boost: /usr/include (found suitable version "1.69.0", minimum required is "1.35") found components: filesystem system
CMake Warning (dev) at /usr/share/cmake/Modules/FindPackageHandleStandardArgs.cmake:272 (message):
The package name passed to find_package_handle_standard_args (PkgConfig)
does not match the name of the calling package (CppUnit). This can lead to
problems in calling code that expects find_package result variables
(e.g., _FOUND) to follow a certain pattern.
Call Stack (most recent call first):
/usr/share/cmake/Modules/FindPkgConfig.cmake:45 (find_package_handle_standard_args)
cmake/Modules/FindCppUnit.cmake:12 (INCLUDE)
CMakeLists.txt:86 (find_package)
This warning is for project developers. Use -Wno-dev to suppress it.

-- Found PkgConfig: /usr/bin/pkg-config (found version "1.6.1")
-- Checking for module 'cppunit'
-- Found cppunit, version 1.14.0
CMake Warning (dev) at /usr/share/cmake/Modules/FindPackageHandleStandardArgs.cmake:272 (message):
The package name passed to find_package_handle_standard_args (CPPUNIT)
does not match the name of the calling package (CppUnit). This can lead to
problems in calling code that expects find_package result variables
(e.g., _FOUND) to follow a certain pattern.
Call Stack (most recent call first):
cmake/Modules/FindCppUnit.cmake:35 (FIND_PACKAGE_HANDLE_STANDARD_ARGS)
CMakeLists.txt:86 (find_package)
This warning is for project developers. Use -Wno-dev to suppress it.

-- Found CPPUNIT: /usr/lib64/libcppunit.so;dl
CMake Warning (dev) at /usr/share/cmake/Modules/FindPackageHandleStandardArgs.cmake:272 (message):
The package name passed to find_package_handle_standard_args (PkgConfig)
does not match the name of the calling package (Gnuradio). This can lead
to problems in calling code that expects find_package result variables
(e.g., _FOUND) to follow a certain pattern.
Call Stack (most recent call first):
/usr/share/cmake/Modules/FindPkgConfig.cmake:45 (find_package_handle_standard_args)
/usr/lib64/cmake/gnuradio/GnuradioConfig.cmake:20 (INCLUDE)
CMakeLists.txt:93 (find_package)
This warning is for project developers. Use -Wno-dev to suppress it.

Checking for GNU Radio Module: RUNTIME
-- Checking for module 'gnuradio-runtime'
-- Found gnuradio-runtime, version 3.7.13.5

• INCLUDES=/usr/include
• LIBS=/lib64/libgnuradio-runtime.so;/lib64/libgnuradio-pmt.so
  CMake Warning (dev) at /usr/share/cmake/Modules/FindPackageHandleStandardArgs.cmake:272 (message):
  The package name passed to find_package_handle_standard_args
  (GNURADIO_RUNTIME) does not match the name of the calling package
  (Gnuradio). This can lead to problems in calling code that expects
  find_package result variables (e.g., _FOUND) to follow a certain
  pattern.
  Call Stack (most recent call first):
  /usr/lib64/cmake/gnuradio/GnuradioConfig.cmake:108 (FIND_PACKAGE_HANDLE_STANDARD_ARGS)
  /usr/lib64/cmake/gnuradio/GnuradioConfig.cmake:121 (GR_MODULE)
  CMakeLists.txt:93 (find_package)
  This warning is for project developers. Use -Wno-dev to suppress it.

-- Found GNURADIO_RUNTIME: /lib64/libgnuradio-runtime.so;/lib64/libgnuradio-pmt.so
GNURADIO_RUNTIME_FOUND = TRUE
CMake Warning (dev) at /usr/lib64/cmake/gnuradio/GrTest.cmake:45 (get_target_property):
Policy CMP0026 is not set: Disallow use of the LOCATION target property.
Run "cmake --help-policy CMP0026" for policy details. Use the cmake_policy
command to set the policy and suppress this warning.

The LOCATION property should not be read from target "test-dsss". Use the
target name directly with add_custom_command, or use the generator
expression $<TARGET_FILE>, as appropriate.

Call Stack (most recent call first):
lib/CMakeLists.txt:81 (GR_ADD_TEST)
This warning is for project developers. Use -Wno-dev to suppress it.

--
-- Checking for module SWIG
-- Found SWIG version 3.0.12.
-- Found SWIG: /usr/bin/swig
-- Found PythonLibs: /usr/lib64/libpython2.7.so (found suitable version "2.7.18", minimum required is "2")
-- Found PythonInterp: /usr/bin/python2 (found suitable version "2.7.18", minimum required is "2")
-- Performing Test HAVE_WNO_UNUSED_BUT_SET_VARIABLE
-- Performing Test HAVE_WNO_UNUSED_BUT_SET_VARIABLE - Success
CMake Warning (dev) at /usr/lib64/cmake/gnuradio/GrTest.cmake:45 (get_target_property):
Policy CMP0026 is not set: Disallow use of the LOCATION target property.
Run "cmake --help-policy CMP0026" for policy details. Use the cmake_policy
command to set the policy and suppress this warning.

The LOCATION property should not be read from target "gnuradio-dsss". Use
the target name directly with add_custom_command, or use the generator
expression $<TARGET_FILE>, as appropriate.

Call Stack (most recent call first):
python/CMakeLists.txt:44 (GR_ADD_TEST)
This warning is for project developers. Use -Wno-dev to suppress it.

CMake Warning (dev) at /usr/lib64/cmake/gnuradio/GrTest.cmake:45 (get_target_property):
Policy CMP0045 is not set: Error on non-existent target in
get_target_property. Run "cmake --help-policy CMP0045" for policy details.
Use the cmake_policy command to set the policy and suppress this warning.

get_target_property() called with non-existent target "/usr/bin/python2".
Call Stack (most recent call first):
python/CMakeLists.txt:44 (GR_ADD_TEST)
This warning is for project developers. Use -Wno-dev to suppress it.

CMake Warning (dev) at /usr/lib64/cmake/gnuradio/GrTest.cmake:45 (get_target_property):
Policy CMP0045 is not set: Error on non-existent target in
get_target_property. Run "cmake --help-policy CMP0045" for policy details.
Use the cmake_policy command to set the policy and suppress this warning.

get_target_property() called with non-existent target
"/home/user/gr-dsss/python/qa_dsss_encoder_bb.py".
Call Stack (most recent call first):
python/CMakeLists.txt:44 (GR_ADD_TEST)
This warning is for project developers. Use -Wno-dev to suppress it.

CMake Warning (dev) at /usr/lib64/cmake/gnuradio/GrTest.cmake:45 (get_target_property):
Policy CMP0026 is not set: Disallow use of the LOCATION target property.
Run "cmake --help-policy CMP0026" for policy details. Use the cmake_policy
command to set the policy and suppress this warning.

The LOCATION property should not be read from target "gnuradio-dsss". Use
the target name directly with add_custom_command, or use the generator
expression $<TARGET_FILE>, as appropriate.

Call Stack (most recent call first):
python/CMakeLists.txt:45 (GR_ADD_TEST)
This warning is for project developers. Use -Wno-dev to suppress it.

CMake Warning (dev) at /usr/lib64/cmake/gnuradio/GrTest.cmake:45 (get_target_property):
Policy CMP0045 is not set: Error on non-existent target in
get_target_property. Run "cmake --help-policy CMP0045" for policy details.
Use the cmake_policy command to set the policy and suppress this warning.

get_target_property() called with non-existent target "/usr/bin/python2".
Call Stack (most recent call first):
python/CMakeLists.txt:45 (GR_ADD_TEST)
This warning is for project developers. Use -Wno-dev to suppress it.

CMake Warning (dev) at /usr/lib64/cmake/gnuradio/GrTest.cmake:45 (get_target_property):
Policy CMP0045 is not set: Error on non-existent target in
get_target_property. Run "cmake --help-policy CMP0045" for policy details.
Use the cmake_policy command to set the policy and suppress this warning.

get_target_property() called with non-existent target
"/home/user/gr-dsss/python/qa_dsss_decoder_cc.py".
Call Stack (most recent call first):
python/CMakeLists.txt:45 (GR_ADD_TEST)
This warning is for project developers. Use -Wno-dev to suppress it.

-- Found Doxygen: /usr/bin/doxygen (found version "1.8.15") found components: doxygen dot
-- Configuring done
-- Generating done
-- Build files have been written to: /home/user/gr-dsss/build
[user@gnuradio build]$ make
Scanning dependencies of target gnuradio-dsss
[ 5%] Building CXX object lib/CMakeFiles/gnuradio-dsss.dir/dsss_encoder_bb_impl.cc.o
[ 10%] Building CXX object lib/CMakeFiles/gnuradio-dsss.dir/dsss_decoder_cc_impl.cc.o
[ 15%] Linking CXX shared library libgnuradio-dsss.so
[ 15%] Built target gnuradio-dsss
Scanning dependencies of target test-dsss
[ 20%] Building CXX object lib/CMakeFiles/test-dsss.dir/test_dsss.cc.o
[ 25%] Building CXX object lib/CMakeFiles/test-dsss.dir/qa_dsss.cc.o
[ 30%] Linking CXX executable test-dsss
[ 30%] Built target test-dsss
Scanning dependencies of target dsss_swig_swig_doc
[ 30%] Built target dsss_swig_swig_doc
Scanning dependencies of target _dsss_swig_swig_tag
[ 35%] Building CXX object swig/CMakeFiles/_dsss_swig_swig_tag.dir/_dsss_swig_swig_tag.cpp.o
[ 40%] Linking CXX executable _dsss_swig_swig_tag
[ 40%] Built target _dsss_swig_swig_tag
[ 45%] Generating dsss_swig.tag
Scanning dependencies of target dsss_swig_swig_2d0df
[ 50%] Building CXX object swig/CMakeFiles/dsss_swig_swig_2d0df.dir/dsss_swig_swig_2d0df.cpp.o
[ 55%] Linking CXX executable dsss_swig_swig_2d0df
Swig source
[ 55%] Built target dsss_swig_swig_2d0df
Scanning dependencies of target _dsss_swig
[ 60%] Building CXX object swig/CMakeFiles/_dsss_swig.dir/dsss_swigPYTHON_wrap.cxx.o
[ 65%] Linking CXX shared module _dsss_swig.so
[ 75%] Built target _dsss_swig
Scanning dependencies of target pygen_swig_f588f
[ 80%] Generating dsss_swig.pyc
[ 85%] Generating dsss_swig.pyo
[ 90%] Built target pygen_swig_f588f
Scanning dependencies of target pygen_python_8b794
[ 95%] Generating init.pyc
[100%] Generating init.pyo
[100%] Built target pygen_python_8b794
Scanning dependencies of target pygen_apps_9a6dd
[100%] Built target pygen_apps_9a6dd
[user@gnuradio build]$ sudo make install
[ 15%] Built target gnuradio-dsss
[ 30%] Built target test-dsss
[ 30%] Built target dsss_swig_swig_doc
[ 40%] Built target _dsss_swig_swig_tag
[ 55%] Built target dsss_swig_swig_2d0df
[ 75%] Built target _dsss_swig
[ 90%] Built target pygen_swig_f588f
[100%] Built target pygen_python_8b794
[100%] Built target pygen_apps_9a6dd
Install the project...
-- Install configuration: "Release"
-- Installing: /usr/local/lib/cmake/dsss/dsssConfig.cmake
-- Installing: /usr/local/include/dsss/api.h
-- Installing: /usr/local/include/dsss/dsss_encoder_bb.h
-- Installing: /usr/local/include/dsss/dsss_decoder_cc.h
-- Installing: /usr/local/lib64/libgnuradio-dsss.so
-- Installing: /usr/local/lib64/python2.7/site-packages/dsss/_dsss_swig.so
-- Set runtime path of "/usr/local/lib64/python2.7/site-packages/dsss/_dsss_swig.so" to ""
-- Installing: /usr/local/lib64/python2.7/site-packages/dsss/dsss_swig.py
-- Installing: /usr/local/lib64/python2.7/site-packages/dsss/dsss_swig.pyc
-- Installing: /usr/local/lib64/python2.7/site-packages/dsss/dsss_swig.pyo
-- Installing: /usr/local/include/dsss/dsss/swig/dsss_swig.i
-- Installing: /usr/local/include/dsss/dsss/swig/dsss_swig_doc.i
-- Installing: /usr/local/lib64/python2.7/site-packages/dsss/init.py
-- Installing: /usr/local/lib64/python2.7/site-packages/dsss/init.pyc
-- Installing: /usr/local/lib64/python2.7/site-packages/dsss/init.pyo
-- Installing: /usr/local/share/gnuradio/grc/blocks/dsss_dsss_encoder_bb.xml
-- Installing: /usr/local/share/gnuradio/grc/blocks/dsss_dsss_decoder_cc.xml
[user@gnuradio build]$

Then I load the example:
[user@gnuradio build]$ gnuradio-companion ../examples/parameterized_DSSS_encode_decode.grc
<<< Welcome to GNU Radio Companion 3.7.13.5 >>>

Block paths:
/usr/share/gnuradio/grc/blocks
/usr/local/share/gnuradio/grc/blocks

Loading: "/home/user/gr-dsss/examples/parameterized_DSSS_encode_decode.grc"

Done

Finally, When I Run, Generate, and then Run, Execute, I get:

Executing: /usr/bin/python2 -u /home/user/gr-dsss/examples/top_block.py

Traceback (most recent call last):
File "/home/user/gr-dsss/examples/top_block.py", line 32, in
import dsss
File "/usr/lib/python2.7/site-packages/dsss/init.py", line 45, in
from dsss_swig import *
File "/usr/lib/python2.7/site-packages/dsss/dsss_swig.py", line 17, in
_dsss_swig = swig_import_helper()
File "/usr/lib/python2.7/site-packages/dsss/dsss_swig.py", line 16, in swig_import_helper
return importlib.import_module('_dsss_swig')
File "/usr/lib64/python2.7/importlib/init.py", line 37, in import_module
import(name)
ImportError: No module named _dsss_swig

Done (return code 1)

Utilization of DSSS in satellite

Hi, great project (and updates). We have your flowgraphs up and running, and working on demodulating a signal from satellite. We are looking to pull in an expert for the project and always like reaching out to the project to offer whatever we can entice you with (hardware, funds, etc). Would you be interested in spending some time on a project with us?

Cheers

Jeff - Global Satellite Engineering

CPU usage 100 % while execution

Hi,

I run the examples from your module but it uses 100 % CPU execution.Sometimes it never open QT GUI for some reason. Do you have any work around this ?