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#!/usr/bin/env python
##################################################
# Gnuradio Python Flow Graph
# Title: Amplitude Balance
# Author: mettus
# Description: Restores IQ amplitude balance
# Generated: Thu Aug 1 11:47:46 2013
##################################################
from gnuradio import blocks
from gnuradio import gr
from gnuradio.filter import firdes
class amp_bal(gr.hier_block2):
def __init__(self, alpha=0):
gr.hier_block2.__init__(
self, "Amplitude Balance",
gr.io_signature(1, 1, gr.sizeof_gr_complex*1),
gr.io_signature(1, 1, gr.sizeof_gr_complex*1),
)
##################################################
# Parameters
##################################################
self.alpha = alpha
##################################################
# Blocks
##################################################
self.blocks_rms_xx0 = blocks.rms_ff(alpha)
self.blocks_rms_xx = blocks.rms_ff(alpha)
self.blocks_multiply_vxx1 = blocks.multiply_vff(1)
self.blocks_float_to_complex = blocks.float_to_complex(1)
self.blocks_divide_xx = blocks.divide_ff(1)
self.blocks_complex_to_float = blocks.complex_to_float(1)
##################################################
# Connections
##################################################
self.connect((self.blocks_float_to_complex, 0), (self, 0))
self.connect((self, 0), (self.blocks_complex_to_float, 0))
self.connect((self.blocks_complex_to_float, 0), (self.blocks_rms_xx, 0))
self.connect((self.blocks_complex_to_float, 1), (self.blocks_rms_xx0, 0))
self.connect((self.blocks_rms_xx, 0), (self.blocks_divide_xx, 0))
self.connect((self.blocks_rms_xx0, 0), (self.blocks_divide_xx, 1))
self.connect((self.blocks_complex_to_float, 0), (self.blocks_float_to_complex, 0))
self.connect((self.blocks_complex_to_float, 1), (self.blocks_multiply_vxx1, 1))
self.connect((self.blocks_divide_xx, 0), (self.blocks_multiply_vxx1, 0))
self.connect((self.blocks_multiply_vxx1, 0), (self.blocks_float_to_complex, 1))
# QT sink close method reimplementation
def get_alpha(self):
return self.alpha
def set_alpha(self, alpha):
self.alpha = alpha
self.blocks_rms_xx.set_alpha(self.alpha)
self.blocks_rms_xx0.set_alpha(self.alpha)
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