Re: ODP: Problem using gr-doa / Qt / Ubuntu 18.04

[Alexandru Martian]

    Hello Marcin,
      
      Thank you very much for your suggestion, I will try it.
      
      Best regards,
      
      Alexandru
      
      
      On 18.07.2021 22:18, marcin.r.wachowiak@gmail.com wrote:
      
      Hello,
      I cannot answer Your question directly as I have encountered
      similar errors with gr-doa. Due to qt-gui compass plugin and some
      other dependencies when I tried to run it with USRP B210.
      Unfortunately, it is no longer maintained or updated. (I never got
      this qt-compass to work). 
      
      What I can suggest is a more up to date version of gr-doa, which
      is: https://github.com/MarcinWachowiak/GNU-Radio-USRP-AoA
      
      (it is based on gr-doa with some modifications, fixes and
      additional blocks, ported from Armadillo to Eigen which is faster)
      
      Whole repository is for GR 3.8.2 and there are some example
      flowgraphs showing the default configuration. 
      The repository lacks QT gui compass, but there are some other
      blocks or routines instead. There is dynamic method of
      synchronization of the channels using sample and hold block
      instead of reading from file. Although the examples are for 2
      channels the flowgraphs can be easily extended for a case with
      more input signals.
      
      Wish You best the best of luck with DoA.
      
      
      
      Kind regards,
      Marcin Wachowiak
      
      
      
      Od: Discuss-gnuradio
      <discuss-gnuradio-bounces+marcin.r.wachowiak=gmail.com@gnu.org> W imieniu
      Alexandru Martian
      Wysłano: Sunday, 18 July 2021 18:43
      Do: discuss-gnuradio@gnu.org
      Temat: Problem using gr-doa / Qt / Ubuntu 18.04
      
      
      
      Hello all,
      
      I was trying to setup the gr-doa for performing DoA measurements
      using USRP X310 equipped with two TwinRX RF daughterboards and I
      encountered the following error while trying to run the
      view_X310_TwinRX_op_with_corrected_phase_offsets, after installing
      the qt4 and qwt5 packages (the operating system is Ubuntu 18.04,
      UHD 3.10.3):
      
      Traceback (most recent call last):
        File
"/home/alexandru/Downloads/gr-doa/apps/view_X310_TwinRX_op_with_corrected_phase_offsets.py", line 30, in
      <module>
          import doa
        File "/usr/local/lib/python2.7/dist-packages/doa/__init__.py",
      line 37, in <module>
          from compass import compass
        File "/usr/local/lib/python2.7/dist-packages/doa/compass.py", line 30, in
      <module>
          import PyQt4.Qwt5 as Qwt
        File "/usr/lib/python2.7/dist-packages/PyQt4/Qwt5/__init__.py",
      line 32, in <module>
          from Qwt import *
      RuntimeError: the PyQt4.QtCore module failed to register with the
      sip module
      
      Could you suggest a possible solution? Thanks in advance!
      
      Best regards,
      
      Alexandru
      
      -- 
      
      -----------------
      
      Alexandru Martian
      
      Associate Professor, University Politehnica of Bucharest
      
      Faculty of Electronics, Telecommunications and Information
      Technology
      
      Telecommunications Department
      
      
      
      E-mail: 
      
      alexandru.martian@upb.ro
      
      martian@radio.pub.ro
      
      
      
      
      
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      -- ----------------- Alexandru Martian Associate Professor,
      University Politehnica of Bucharest Faculty of Electronics,
      Telecommunications and Information Technology Telecommunications
      Department E-mail: alexandru.martian@upb.ro martian@radio.pub.ro

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