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embeded_python_per.grc
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embeded_python_per.grc
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<?xml version='1.0' encoding='utf-8'?>
<?grc format='1' created='3.7.12'?>
<flow_graph>
<timestamp>Sun Mar 25 21:21:43 2018</timestamp>
<block>
<key>options</key>
<param>
<key>author</key>
<value></value>
</param>
<param>
<key>window_size</key>
<value></value>
</param>
<param>
<key>category</key>
<value>[GRC Hier Blocks]</value>
</param>
<param>
<key>comment</key>
<value></value>
</param>
<param>
<key>description</key>
<value></value>
</param>
<param>
<key>_enabled</key>
<value>True</value>
</param>
<param>
<key>_coordinate</key>
<value>(8, 8)</value>
</param>
<param>
<key>_rotation</key>
<value>0</value>
</param>
<param>
<key>generate_options</key>
<value>qt_gui</value>
</param>
<param>
<key>hier_block_src_path</key>
<value>.:</value>
</param>
<param>
<key>id</key>
<value>top_block</value>
</param>
<param>
<key>max_nouts</key>
<value>0</value>
</param>
<param>
<key>qt_qss_theme</key>
<value></value>
</param>
<param>
<key>realtime_scheduling</key>
<value></value>
</param>
<param>
<key>run_command</key>
<value>{python} -u {filename}</value>
</param>
<param>
<key>run_options</key>
<value>prompt</value>
</param>
<param>
<key>run</key>
<value>True</value>
</param>
<param>
<key>sizing_mode</key>
<value>fixed</value>
</param>
<param>
<key>thread_safe_setters</key>
<value></value>
</param>
<param>
<key>title</key>
<value></value>
</param>
<param>
<key>placement</key>
<value>(0,0)</value>
</param>
</block>
<block>
<key>variable</key>
<param>
<key>comment</key>
<value></value>
</param>
<param>
<key>_enabled</key>
<value>True</value>
</param>
<param>
<key>_coordinate</key>
<value>(8, 160)</value>
</param>
<param>
<key>_rotation</key>
<value>0</value>
</param>
<param>
<key>id</key>
<value>samp_rate</value>
</param>
<param>
<key>value</key>
<value>32000</value>
</param>
</block>
<block>
<key>blocks_keep_m_in_n</key>
<param>
<key>alias</key>
<value></value>
</param>
<param>
<key>comment</key>
<value></value>
</param>
<param>
<key>affinity</key>
<value></value>
</param>
<param>
<key>_enabled</key>
<value>1</value>
</param>
<param>
<key>_coordinate</key>
<value>(456, 132)</value>
</param>
<param>
<key>_rotation</key>
<value>0</value>
</param>
<param>
<key>id</key>
<value>blocks_keep_m_in_n_0</value>
</param>
<param>
<key>m</key>
<value>5</value>
</param>
<param>
<key>maxoutbuf</key>
<value>0</value>
</param>
<param>
<key>minoutbuf</key>
<value>0</value>
</param>
<param>
<key>n</key>
<value>20</value>
</param>
<param>
<key>type</key>
<value>byte</value>
</param>
<param>
<key>offset</key>
<value>0</value>
</param>
</block>
<block>
<key>blocks_throttle</key>
<param>
<key>alias</key>
<value></value>
</param>
<param>
<key>comment</key>
<value></value>
</param>
<param>
<key>affinity</key>
<value></value>
</param>
<param>
<key>_enabled</key>
<value>True</value>
</param>
<param>
<key>_coordinate</key>
<value>(312, 180)</value>
</param>
<param>
<key>_rotation</key>
<value>0</value>
</param>
<param>
<key>id</key>
<value>blocks_throttle_0</value>
</param>
<param>
<key>ignoretag</key>
<value>True</value>
</param>
<param>
<key>maxoutbuf</key>
<value>0</value>
</param>
<param>
<key>minoutbuf</key>
<value>0</value>
</param>
<param>
<key>samples_per_second</key>
<value>samp_rate</value>
</param>
<param>
<key>type</key>
<value>byte</value>
</param>
<param>
<key>vlen</key>
<value>1</value>
</param>
</block>
<block>
<key>blocks_vector_source_x</key>
<param>
<key>alias</key>
<value></value>
</param>
<param>
<key>comment</key>
<value></value>
</param>
<param>
<key>affinity</key>
<value></value>
</param>
<param>
<key>_enabled</key>
<value>True</value>
</param>
<param>
<key>_coordinate</key>
<value>(144, 124)</value>
</param>
<param>
<key>_rotation</key>
<value>0</value>
</param>
<param>
<key>id</key>
<value>blocks_vector_source_x_0</value>
</param>
<param>
<key>maxoutbuf</key>
<value>0</value>
</param>
<param>
<key>minoutbuf</key>
<value>0</value>
</param>
<param>
<key>type</key>
<value>byte</value>
</param>
<param>
<key>repeat</key>
<value>True</value>
</param>
<param>
<key>tags</key>
<value>[]</value>
</param>
<param>
<key>vlen</key>
<value>1</value>
</param>
<param>
<key>vector</key>
<value>np.arange(0,256)</value>
</param>
</block>
<block>
<key>import</key>
<param>
<key>alias</key>
<value></value>
</param>
<param>
<key>comment</key>
<value></value>
</param>
<param>
<key>_enabled</key>
<value>True</value>
</param>
<param>
<key>_coordinate</key>
<value>(128, 8)</value>
</param>
<param>
<key>_rotation</key>
<value>0</value>
</param>
<param>
<key>id</key>
<value>import_0</value>
</param>
<param>
<key>import</key>
<value>import numpy as np</value>
</param>
</block>
<block>
<key>epy_block</key>
<param>
<key>alias</key>
<value></value>
</param>
<param>
<key>_io_cache</key>
<value>('PER Calculator', 'blk', [('window_size', '1'), ('modulus', '1')], [('0', 'byte', 1)], [('0', 'float', 1)], 'Embedded Python Block - This block takes the packet numbers of the received window size packets and calculates the quantity of the lost packets\n As for today, it only works for window sizes multiples of the length of the data.\n ', ['modulus', 'window_size'])</value>
</param>
<param>
<key>_source_code</key>
<value>"""
Embedded Python Blocks:
Each time this file is saved, GRC will instantiate the first class it finds
to get ports and parameters of your block. The arguments to __init__ will
be the parameters. All of them are required to have default values!
"""
import numpy as np
from gnuradio import gr
class blk(gr.sync_block): # other base classes are basic_block, decim_block, interp_block
"""Embedded Python Block - This block takes the packet numbers of the received window size packets and calculates the quantity of the lost packets
As for today, it only works for window sizes multiples of the length of the data.
"""
def __init__(self, window_size=1, modulus=1): # only default arguments here
"""arguments to this function show up as parameters in GRC"""
gr.sync_block.__init__(
self,
name='PER Calculator', # will show up in GRC
in_sig=[np.int8],
out_sig=[np.float32]
)
# if an attribute with the same name as a parameter is found,
# a callback is registered (properties work, too).
self.window_size = window_size
self.modulus = modulus
def work(self, input_items, output_items):
"""example: multiply with constant"""
# self.set_history(self.window_size)
# print("input size -> {}".format(len(input_items[0])))
consumed = (len(input_items[0]-self.window_size+1))
if len(input_items[0]) < self.window_size:
return 0
# per = erros + window_size
for i in range(0 ,consumed):
observed = input_items[0][i:self.window_size+i]
errors = sum((np.diff(observed) % self.modulus)-1)
output_items[0][i]= float(errors)/(self.window_size+errors)
if output_items[0][i] <= 1 and output_items[0][i] >= 0 and i%self.window_size==0: #printa uma vez apenas valores entre 0 e 1
# print(i)
if output_items[0][i] < 0.25:
print("Erros ->{} - Sugerido 8PSK SEM FEC" .format(output_items[0][i]))
if output_items[0][i] < 0.50 and output_items[0][i] >= 0.25:
print("Erros ->{} - Sugerido QPSK SEM FEC" .format(output_items[0][i]))
if output_items[0][i] <= 0.75 and output_items[0][i] >= 0.50:
print("Erros ->{} - Sugerido QPSK COM FEC" .format(output_items[0][i]))
if output_items[0][i] <= 1 and output_items[0][i] >= 0.75:
print("Erros ->{} - Sugerido BPSK COM FEC" .format(output_items[0][i]))
# self.consume(0,consumed)
return len(output_items[0])
</value>
</param>
<param>
<key>comment</key>
<value></value>
</param>
<param>
<key>_enabled</key>
<value>True</value>
</param>
<param>
<key>_coordinate</key>
<value>(592, 140)</value>
</param>
<param>
<key>_rotation</key>
<value>0</value>
</param>
<param>
<key>id</key>
<value>per_calc_0</value>
</param>
<param>
<key>modulus</key>
<value>256</value>
</param>
<param>
<key>window_size</key>
<value>10</value>
</param>
</block>
<block>
<key>qtgui_number_sink</key>
<param>
<key>autoscale</key>
<value>False</value>
</param>
<param>
<key>avg</key>
<value>0</value>
</param>
<param>
<key>alias</key>
<value></value>
</param>
<param>
<key>comment</key>
<value></value>
</param>
<param>
<key>affinity</key>
<value></value>
</param>
<param>
<key>_enabled</key>
<value>True</value>
</param>
<param>
<key>_coordinate</key>
<value>(736, 132)</value>
</param>
<param>
<key>gui_hint</key>
<value></value>
</param>
<param>
<key>_rotation</key>
<value>0</value>
</param>
<param>
<key>graph_type</key>
<value>qtgui.NUM_GRAPH_HORIZ</value>
</param>
<param>
<key>id</key>
<value>qtgui_number_sink_0</value>
</param>
<param>
<key>type</key>
<value>float</value>
</param>
<param>
<key>color1</key>
<value>("black", "black")</value>
</param>
<param>
<key>factor1</key>
<value>1</value>
</param>
<param>
<key>label1</key>
<value></value>
</param>
<param>
<key>unit1</key>
<value></value>
</param>
<param>
<key>color10</key>
<value>("black", "black")</value>
</param>
<param>
<key>factor10</key>
<value>1</value>
</param>
<param>
<key>label10</key>
<value></value>
</param>
<param>
<key>unit10</key>
<value></value>
</param>
<param>
<key>color2</key>
<value>("black", "black")</value>
</param>
<param>
<key>factor2</key>
<value>1</value>
</param>
<param>
<key>label2</key>
<value></value>
</param>
<param>
<key>unit2</key>
<value></value>
</param>
<param>
<key>color3</key>
<value>("black", "black")</value>
</param>
<param>
<key>factor3</key>
<value>1</value>
</param>
<param>
<key>label3</key>
<value></value>
</param>
<param>
<key>unit3</key>
<value></value>
</param>
<param>
<key>color4</key>
<value>("black", "black")</value>
</param>
<param>
<key>factor4</key>
<value>1</value>
</param>
<param>
<key>label4</key>
<value></value>
</param>
<param>
<key>unit4</key>
<value></value>
</param>
<param>
<key>color5</key>
<value>("black", "black")</value>
</param>
<param>
<key>factor5</key>
<value>1</value>
</param>
<param>
<key>label5</key>
<value></value>
</param>
<param>
<key>unit5</key>
<value></value>
</param>
<param>
<key>color6</key>
<value>("black", "black")</value>
</param>
<param>
<key>factor6</key>
<value>1</value>
</param>
<param>
<key>label6</key>
<value></value>
</param>
<param>
<key>unit6</key>
<value></value>
</param>
<param>
<key>color7</key>
<value>("black", "black")</value>
</param>
<param>
<key>factor7</key>
<value>1</value>
</param>
<param>
<key>label7</key>
<value></value>
</param>
<param>
<key>unit7</key>
<value></value>
</param>
<param>
<key>color8</key>
<value>("black", "black")</value>
</param>
<param>
<key>factor8</key>
<value>1</value>
</param>
<param>
<key>label8</key>
<value></value>
</param>
<param>
<key>unit8</key>
<value></value>
</param>
<param>
<key>color9</key>
<value>("black", "black")</value>
</param>
<param>
<key>factor9</key>
<value>1</value>
</param>
<param>
<key>label9</key>
<value></value>
</param>
<param>
<key>unit9</key>
<value></value>
</param>
<param>
<key>max</key>
<value>1</value>
</param>
<param>
<key>min</key>
<value>-1</value>
</param>
<param>
<key>name</key>
<value>""</value>
</param>
<param>
<key>nconnections</key>
<value>1</value>
</param>
<param>
<key>update_time</key>
<value>0.10</value>
</param>
</block>
<connection>
<source_block_id>blocks_keep_m_in_n_0</source_block_id>
<sink_block_id>per_calc_0</sink_block_id>
<source_key>0</source_key>
<sink_key>0</sink_key>
</connection>
<connection>
<source_block_id>blocks_throttle_0</source_block_id>
<sink_block_id>blocks_keep_m_in_n_0</sink_block_id>
<source_key>0</source_key>
<sink_key>0</sink_key>
</connection>
<connection>
<source_block_id>blocks_vector_source_x_0</source_block_id>
<sink_block_id>blocks_throttle_0</sink_block_id>
<source_key>0</source_key>
<sink_key>0</sink_key>
</connection>
<connection>
<source_block_id>per_calc_0</source_block_id>
<sink_block_id>qtgui_number_sink_0</sink_block_id>
<source_key>0</source_key>
<sink_key>0</sink_key>
</connection>
</flow_graph>