wheberth

#!/usr/bin/env python3

# Provides "fast" waveform and spectrum visualization for SDR signals using pyqtgraph.
# The idea is that you change the get_samples() function for whatever you need to 
# obtain you own data for analisys.
# Hopefully this can be useful, of at least, fun for someone else ;) 

# TODO: 
#   * Command line args / UI Selection for Plot parameters
#   * Grid and legend on the "Digital fosphor display"

wheberth

#!/usr/bin/env python
import iio
import struct
import numpy as np
import matplotlib.pyplot as plt

#initalize the iio device and read samples from the channel voltage0
ctx = iio.Context("ip:192.168.2.1")
dev = ctx.find_device('cf-ad9361-lpc')
ch0 = dev.find_channel('voltage0', False)

wheberth

# All credits to https://coderwall.com/p/fasnya/add-git-branch-name-to-bash-prompt
parse_git_branch() {
     git branch 2> /dev/null | sed -e '/^[^*]/d' -e 's/* \(.*\)/ (\1)/'
}
export PS1="${debian_chroot:+($debian_chroot)}\[\033[01;32m\]\u@\h\[\033[00m\]:\[\033[01;34m\]\w\\[\033[33m\]\$(parse_git_branch)\[\033[00m\]\$ " #ubuntu way
force_color_prompt=yes

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[Unit]
Description=iperf3 server
After=syslog.target network.target auditd.service

[Service]
ExecStart=/usr/bin/iperf3 -s

[Install]
WantedBy=multi-user.target

wheberth

[Unit]
Description=Start NI USRP RIO

[Service]
User=root
Type=oneshot
RemainAfterExit=yes
ExecStart=/usr/local/bin/niusrprio_pcie start
ExecStop=/usr/local/bin/niusrprio_pcie stop  

wheberth

#!/bin/bash
# Adds a tun interface for a point to point link in nmcli and sets the MTU to 9000 bytes
# the created inteface belongs to the group 27 (sudo in Ubuntu 18.04)
# You need to run only once, as the interface is permanent

nmcli connection add type tun mode tun group 27 ifname radiotun0 con-name radiotun0 eth.mtu 9000 ip4 10.0.0.3/29

wheberth

"""
USRP AGC Control

This block is a PI controller to the gain of the USRP based on the 
received signal. This particular implementation uses the peak of 
the signal, but other metrics, such as variance, os standard deviation
can be employed. The gain is controled in 0.5 steps and an hysteresis
can be set.
The main goal of such block is to avoid saturation at the ADC or
analog frontent.