wiki:Tutorials/Wireless/Fosphor

Version 7 (modified by prasanthi, 4 years ago) ( diff )

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Spectrum visualization with Fosphor

Description

This tutorial illustrates use of ​RFNoC Fosphor block for spectrum visualization. RFNoC Fosphor block is the FPGA accelerated version of ​gr-fosphor (CPU/GPU version). As any other RFNoC blocks, RFNoC Fosphor can be instantiated on 3rd generation USRP devices, and can be used in conjunction with gnuradio-companion(GRC) on the host computer. This tutorial demonstrates GRC RFNoC Fosphor application on USRP-2974s in [COSMOS testbed wiki:Hardware/sdr/usrp2974] and USRP X310s in [ORBIT].

Running a GRC application on a testbed node requires using graphical user interface(GUI) over SSH. This tutorial also illustrates use of ​MobaXterm and jumphost to setup X forwarding for accessing GUI over SSH.

Configure MobaXterm for node access

SSH Configuration Jumphost configuration

Prepare the node

Run gr-fosphor

gnuradio-companion  /root/gr-ettus/examples/rfnoc/rfnoc_fosphor.grc

root@sdr2-s1-lg1:~# gnuradio-companion  /root/gr-ettus/examples/rfnoc/rfnoc_fosphor.grc
<<< Welcome to GNU Radio Companion 3.7.13.5 >>>

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

Loading: "/root/gr-ettus/examples/rfnoc/rfnoc_fosphor.grc"
>>> Done

No image "gr-fosphor.png" attached to Tutorials/Wireless/Fosphor No image "display.png" attached to Tutorials/Wireless/Fosphor

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