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#!/usr/bin/env python
##################################################
# Gnuradio Python Flow Graph
# Title: IQ Imbalance Generator
# Author: mettus
# Generated: Thu Aug 1 12:08:07 2013
##################################################
from gnuradio import blocks
from gnuradio import gr
from gnuradio.filter import firdes
import math
class iqbal_gen(gr.hier_block2):
def __init__(self, magnitude=0, phase=0):
gr.hier_block2.__init__(
self, "IQ Imbalance Generator",
gr.io_signature(1, 1, gr.sizeof_gr_complex*1),
gr.io_signature(1, 1, gr.sizeof_gr_complex*1),
)
##################################################
# Parameters
##################################################
self.magnitude = magnitude
self.phase = phase
##################################################
# Blocks
##################################################
self.mag = blocks.multiply_const_vff((math.pow(10,magnitude/20.0), ))
self.blocks_multiply_const_vxx_0 = blocks.multiply_const_vff((math.sin(phase*math.pi/180.0), ))
self.blocks_float_to_complex_0 = blocks.float_to_complex(1)
self.blocks_complex_to_float_0 = blocks.complex_to_float(1)
self.blocks_add_xx_0 = blocks.add_vff(1)
##################################################
# Connections
##################################################
self.connect((self.blocks_float_to_complex_0, 0), (self, 0))
self.connect((self, 0), (self.blocks_complex_to_float_0, 0))
self.connect((self.blocks_complex_to_float_0, 0), (self.mag, 0))
self.connect((self.mag, 0), (self.blocks_float_to_complex_0, 0))
self.connect((self.blocks_add_xx_0, 0), (self.blocks_float_to_complex_0, 1))
self.connect((self.blocks_multiply_const_vxx_0, 0), (self.blocks_add_xx_0, 0))
self.connect((self.blocks_complex_to_float_0, 1), (self.blocks_add_xx_0, 1))
self.connect((self.blocks_complex_to_float_0, 0), (self.blocks_multiply_const_vxx_0, 0))
# QT sink close method reimplementation
def get_magnitude(self):
return self.magnitude
def set_magnitude(self, magnitude):
self.magnitude = magnitude
self.mag.set_k((math.pow(10,self.magnitude/20.0), ))
def get_phase(self):
return self.phase
def set_phase(self, phase):
self.phase = phase
self.blocks_multiply_const_vxx_0.set_k((math.sin(self.phase*math.pi/180.0), ))
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