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#!/usr/bin/env python
##################################################
# Gnuradio Python Flow Graph
# Title: Quantizer
# Generated: Thu Aug 1 11:09:51 2013
##################################################
from gnuradio import blocks
from gnuradio import gr
from gnuradio.filter import firdes
class quantizer(gr.hier_block2):
def __init__(self, bits=16):
gr.hier_block2.__init__(
self, "Quantizer",
gr.io_signature(1, 1, gr.sizeof_float*1),
gr.io_signature(1, 1, gr.sizeof_float*1),
)
##################################################
# Parameters
##################################################
self.bits = bits
##################################################
# Blocks
##################################################
self.blocks_short_to_float_0 = blocks.short_to_float(1, 1)
self.blocks_multiply_const_vxx_0_0 = blocks.multiply_const_vff((1.0 / pow(2.0,bits-1.0), ))
self.blocks_multiply_const_vxx_0 = blocks.multiply_const_vff((pow(2,bits-1.0), ))
self.blocks_float_to_short_0 = blocks.float_to_short(1, 1)
##################################################
# Connections
##################################################
self.connect((self.blocks_multiply_const_vxx_0_0, 0), (self, 0))
self.connect((self.blocks_short_to_float_0, 0), (self.blocks_multiply_const_vxx_0_0, 0))
self.connect((self.blocks_float_to_short_0, 0), (self.blocks_short_to_float_0, 0))
self.connect((self.blocks_multiply_const_vxx_0, 0), (self.blocks_float_to_short_0, 0))
self.connect((self, 0), (self.blocks_multiply_const_vxx_0, 0))
# QT sink close method reimplementation
def get_bits(self):
return self.bits
def set_bits(self, bits):
self.bits = bits
self.blocks_multiply_const_vxx_0_0.set_k((1.0 / pow(2.0,self.bits-1.0), ))
self.blocks_multiply_const_vxx_0.set_k((pow(2,self.bits-1.0), ))
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