Changes between Version 14 and Version 15 of Tutorials/Wireless/wideband


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Timestamp:
Oct 21, 2019, 6:13:03 PM (5 years ago)
Author:
prasanthi
Comment:

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  • Tutorials/Wireless/wideband

    v14 v15  
    6767}}}
    6868  If you see the above at the end of uhd_usrp_probe output, the USRPs are ready. Spreader_0 is used to spread the transmit signal, and Corrmag63avg8k_0 is the correlator on the receive side.
    69 * If not, load the required image using uhd_image_loader
    70 {{{
    71 root@node19-1:~# uhd_image_loader --args="addr=10.10.23.16,type=x300" --fpga-path=""spreader_corr_specsense_uhd_3_14.bit"
    72 }}}
    7369
    7470==== Set up web based streaming ====
    75 * Set up a web proxy for the receive node
    76   Use run-websock command to set up the proxy (this is required for remote web based streaming)
     71* Web proxies to the receive node in each group are already set up.
     72
     73* Set up SSH tunnel from your local port 5100 to grid.orbit-lab.org:510<group-number> (See [https://wiki.cosmos-lab.org/wiki/tutorials/ssh_tunnel])
     74  For example, for group-red set up tunnel to grid.orbit-lab.org:5101
    7775{{{
    78 prasanthi@console.grid:~$ run-websock 5100 10.10.20.1:5100 --daemon
    79 WARNING: no 'numpy' module, HyBi protocol will be slower
    80 WebSocket server settings:
    81   - Listen on :5100
    82   - Flash security policy server
    83   - No SSL/TLS support (no cert file)
    84   - Backgrounding (daemon)
    85 }}}
    86 * Set up SSH tunnel from your local port 5100 to grid.orbit-lab.org:5100 (See [https://wiki.cosmos-lab.org/wiki/tutorials/ssh_tunnel])
    87 {{{
    88 ssh -L 5100:grid.orbit-lab.org:5100 username@grid.orbit-lab.org
     76ssh -L 5100:grid.orbit-lab.org:5101 username@grid.orbit-lab.org
    8977}}}
    9078
     
    9482root@node19-1:~# /root/uhd/host/build/examples/rfnoc_tx_mobicom --group red
    9583}}}
    96   The same application can be run by passing different command line parameters as shown below
    97 {{{
    98 root@node19-1:~# /root/uhd/host/build/examples/rfnoc_tx_mobicom --args"addr=10.10.23.16,type=x300,skip_ddc,skip_duc" --freq 3e9 --gain 20 --duc-args="input_rate=50000000.0,output_rate=200000000.0"
    99 }}}
    100 
     84 
    10185* Start receive application on the RX node. If you were assigned a group, the command below will start the application on the assigned RX USRP
    10286{{{
    10387  root@node20-1:~# ./uhd/host/build/examples/rfnoc_rx_mobicom --group red
    10488}}}
    105   or the following could be used, when not using a topology
    106 {{{
    107   root@node20-1:~# ./uhd/host/build/examples/rfnoc_rx_mobicom --args"addr=10.10.24.16,type=x300,skip_ddc,skip_duc" --freq 3e9 --gain 10 --ddc-args="output_rate=50000000.0,input_rate=200000000.0"
    108 }}}
     89 
    10990* Download channel_sounding_display.html attached to this tutorial and open it in your browser. Once you click the start button, you should see PDP of the channel.
    11091