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#!/usr/bin/env python
##################################################
# Gnuradio Python Flow Graph
# Title: Radio Impairments Model
# Author: mettus
# Generated: Thu Aug 1 12:46:10 2013
##################################################
from __future__ import absolute_import
from __future__ import division
from __future__ import unicode_literals
from gnuradio import analog
from gnuradio import blocks
from gnuradio import gr
from gnuradio.filter import firdes
import math
#Import locally
from .phase_noise_gen import phase_noise_gen
from .iqbal_gen import iqbal_gen
from .distortion_2_gen import distortion_2_gen
from .distortion_3_gen import distortion_3_gen
class impairments(gr.hier_block2):
def __init__(self, phase_noise_mag=0, magbal=0, phasebal=0, q_ofs=0, i_ofs=0, freq_offset=0, gamma=0, beta=0):
gr.hier_block2.__init__(
self, "Radio Impairments Model",
gr.io_signature(1, 1, gr.sizeof_gr_complex*1),
gr.io_signature(1, 1, gr.sizeof_gr_complex*1),
)
##################################################
# Parameters
##################################################
self.phase_noise_mag = phase_noise_mag
self.magbal = magbal
self.phasebal = phasebal
self.q_ofs = q_ofs
self.i_ofs = i_ofs
self.freq_offset = freq_offset
self.gamma = gamma
self.beta = beta
##################################################
# Blocks
##################################################
self.channels_phase_noise_gen_0_0 = phase_noise_gen(math.pow(10.0,phase_noise_mag / 20.0), .01)
self.channels_iqbal_gen_0 = iqbal_gen(magbal, phasebal)
self.channels_distortion_3_gen_0 = distortion_3_gen(beta)
self.channels_distortion_2_gen_0 = distortion_2_gen(gamma)
self.blocks_multiply_xx_0_0 = blocks.multiply_vcc(1)
self.blocks_multiply_xx_0 = blocks.multiply_vcc(1)
self.blocks_conjugate_cc_0 = blocks.conjugate_cc()
self.blocks_add_const_vxx_0 = blocks.add_const_vcc((i_ofs + q_ofs* 1j, ))
self.analog_sig_source_x_0 = analog.sig_source_c(1.0, analog.GR_COS_WAVE, freq_offset, 1, 0)
##################################################
# Connections
##################################################
self.connect((self.channels_phase_noise_gen_0_0, 0), (self.channels_distortion_3_gen_0, 0))
self.connect((self.blocks_multiply_xx_0, 0), (self, 0))
self.connect((self.blocks_add_const_vxx_0, 0), (self.blocks_multiply_xx_0, 1))
self.connect((self.analog_sig_source_x_0, 0), (self.blocks_multiply_xx_0, 0))
self.connect((self.blocks_multiply_xx_0_0, 0), (self.channels_phase_noise_gen_0_0, 0))
self.connect((self.analog_sig_source_x_0, 0), (self.blocks_conjugate_cc_0, 0))
self.connect((self, 0), (self.blocks_multiply_xx_0_0, 1))
self.connect((self.blocks_conjugate_cc_0, 0), (self.blocks_multiply_xx_0_0, 0))
self.connect((self.channels_iqbal_gen_0, 0), (self.blocks_add_const_vxx_0, 0))
self.connect((self.channels_distortion_3_gen_0, 0), (self.channels_distortion_2_gen_0, 0))
self.connect((self.channels_distortion_2_gen_0, 0), (self.channels_iqbal_gen_0, 0))
# QT sink close method reimplementation
def get_phase_noise_mag(self):
return self.phase_noise_mag
def set_phase_noise_mag(self, phase_noise_mag):
self.phase_noise_mag = phase_noise_mag
self.channels_phase_noise_gen_0_0.set_noise_mag(math.pow(10.0,self.phase_noise_mag / 20.0))
def get_magbal(self):
return self.magbal
def set_magbal(self, magbal):
self.magbal = magbal
self.channels_iqbal_gen_0.set_magnitude(self.magbal)
def get_phasebal(self):
return self.phasebal
def set_phasebal(self, phasebal):
self.phasebal = phasebal
self.channels_iqbal_gen_0.set_phase(self.phasebal)
def get_q_ofs(self):
return self.q_ofs
def set_q_ofs(self, q_ofs):
self.q_ofs = q_ofs
self.blocks_add_const_vxx_0.set_k((self.i_ofs + self.q_ofs* 1j, ))
def get_i_ofs(self):
return self.i_ofs
def set_i_ofs(self, i_ofs):
self.i_ofs = i_ofs
self.blocks_add_const_vxx_0.set_k((self.i_ofs + self.q_ofs* 1j, ))
def get_freq_offset(self):
return self.freq_offset
def set_freq_offset(self, freq_offset):
self.freq_offset = freq_offset
self.analog_sig_source_x_0.set_frequency(self.freq_offset)
def get_gamma(self):
return self.gamma
def set_gamma(self, gamma):
self.gamma = gamma
self.channels_distortion_2_gen_0.set_beta(self.gamma)
def get_beta(self):
return self.beta
def set_beta(self, beta):
self.beta = beta
self.channels_distortion_3_gen_0.set_beta(self.beta)
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