1 <?xml version='1.0' encoding='ASCII'?>
3 <timestamp>Thu Mar 19 11:08:59 2009</timestamp>
16 <value>BER Simulation</value>
20 <value>Example</value>
23 <key>description</key>
24 <value>Adjust the noise and constellation... see what happens!</value>
27 <key>window_size</key>
28 <value>1280, 1024</value>
31 <key>generate_options</key>
39 <key>realtime_scheduling</key>
43 <key>_coordinate</key>
44 <value>(16, 10)</value>
52 <key>gr_noise_source_x</key>
55 <value>gr_noise_source_x</value>
63 <value>complex</value>
67 <value>gr.GR_GAUSSIAN</value>
78 <key>_coordinate</key>
79 <value>(235, 379)</value>
87 <key>gr_chunks_to_symbols_xx</key>
90 <value>gr_chunks_to_symbols_xx</value>
102 <value>complex</value>
105 <key>symbol_table</key>
113 <key>_coordinate</key>
114 <value>(360, 237)</value>
122 <key>wxgui_numbersink2</key>
125 <value>wxgui_numbersink2</value>
145 <value>samp_rate</value>
148 <key>base_value</key>
164 <key>decimal_places</key>
172 <key>number_rate</key>
188 <key>show_gauge</key>
193 <value>1, 0, 1, 1</value>
196 <key>_coordinate</key>
197 <value>(1062, 11)</value>
205 <key>gr_throttle</key>
208 <value>gr_throttle</value>
219 <key>samples_per_second</key>
220 <value>samp_rate</value>
227 <key>_coordinate</key>
228 <value>(397, 27)</value>
236 <key>blks2_error_rate</key>
239 <value>blks2_error_rate</value>
251 <value>1000000</value>
254 <key>bits_per_symbol</key>
255 <value>int(math.log(len(const))/math.log(2))</value>
258 <key>_coordinate</key>
259 <value>(670, 41)</value>
267 <key>gr_constellation_decoder_cb</key>
270 <value>gr_constellation_decoder_cb</value>
277 <key>sym_position</key>
281 <key>sym_value_out</key>
282 <value>range(len(const))</value>
285 <key>_coordinate</key>
286 <value>(708, 224)</value>
294 <key>random_source_x</key>
297 <value>random_source_x</value>
313 <value>len(const)</value>
317 <value>1000000</value>
324 <key>_coordinate</key>
325 <value>(15, 244)</value>
347 <key>_coordinate</key>
348 <value>(18, 386)</value>
367 <value>1+1j, 1-1j, -1-1j, -1+1j</value>
370 <key>_coordinate</key>
371 <value>(16, 461)</value>
382 <value>samp_rate</value>
393 <key>_coordinate</key>
394 <value>(20, 168)</value>
405 <value>import</value>
413 <value>import math</value>
416 <key>_coordinate</key>
417 <value>(138, 168)</value>
428 <value>gr_add_xx</value>
436 <value>complex</value>
439 <key>num_inputs</key>
447 <key>_coordinate</key>
448 <value>(652, 395)</value>
456 <key>wxgui_scopesink2</key>
459 <value>wxgui_scopesink2_0</value>
467 <value>complex</value>
471 <value>"Constellation: "+str(const)</value>
475 <value>samp_rate</value>
494 <key>num_inputs</key>
499 <value>2, 0, 1, 1</value>
502 <key>_coordinate</key>
503 <value>(828, 368)</value>
511 <source_block_id>blks2_error_rate</source_block_id>
512 <sink_block_id>wxgui_numbersink2</sink_block_id>
513 <source_key>0</source_key>
514 <sink_key>0</sink_key>
517 <source_block_id>gr_throttle</source_block_id>
518 <sink_block_id>blks2_error_rate</sink_block_id>
519 <source_key>0</source_key>
520 <sink_key>0</sink_key>
523 <source_block_id>gr_constellation_decoder_cb</source_block_id>
524 <sink_block_id>blks2_error_rate</sink_block_id>
525 <source_key>0</source_key>
526 <sink_key>1</sink_key>
529 <source_block_id>gr_add_xx</source_block_id>
530 <sink_block_id>gr_constellation_decoder_cb</sink_block_id>
531 <source_key>0</source_key>
532 <sink_key>0</sink_key>
535 <source_block_id>gr_chunks_to_symbols_xx</source_block_id>
536 <sink_block_id>gr_add_xx</sink_block_id>
537 <source_key>0</source_key>
538 <sink_key>0</sink_key>
541 <source_block_id>gr_noise_source_x</source_block_id>
542 <sink_block_id>gr_add_xx</sink_block_id>
543 <source_key>0</source_key>
544 <sink_key>1</sink_key>
547 <source_block_id>random_source_x</source_block_id>
548 <sink_block_id>gr_throttle</sink_block_id>
549 <source_key>0</source_key>
550 <sink_key>0</sink_key>
553 <source_block_id>random_source_x</source_block_id>
554 <sink_block_id>gr_chunks_to_symbols_xx</sink_block_id>
555 <source_key>0</source_key>
556 <sink_key>0</sink_key>
559 <source_block_id>gr_add_xx</source_block_id>
560 <sink_block_id>wxgui_scopesink2_0</sink_block_id>
561 <source_key>0</source_key>
562 <sink_key>0</sink_key>