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[Discuss-gnuradio] OFDM sync ml

From: Crespi Floriana
Subject: [Discuss-gnuradio] OFDM sync ml
Date: Fri, 14 Mar 2008 15:22:31 +0100
User-agent: Internet Messaging Program (IMP) 3.2.6

thank you a lot for your advice of OFDM packets.
I try ofdm system with default parameters and the result is good.(PN

I have been trying to test Ofdm system shift into rx sync. The test failed when
I change sync in  receive.py ( for example ml).

I use  realese number 7324 and  kubuntu 7.04

Each time I run benchmark_ofdm_rx.py I get;

Traceback (most recent call last):
  File "benchmark_ofdm_rx.py", line 210, in <module>
  File "benchmark_ofdm_rx.py", line 199, in main
    tb = my_top_block(rx_callback, options)
  File "benchmark_ofdm_rx.py", line 64, in __init__
    self.rxpath = receive_path(callback, options)
  File "/home/crespi/Desktop/Workspace_flo/receive_path.py", line 52, in
    blks2.ofdm_demod(options, callback=self._rx_callback)
  File "/usr/local/lib/python2.5/site-packages/gnuradio/blks2impl/ofdm.py", line
209, in __init__
    self.ofdm_recv = ofdm_receiver(self._fft_length,
self._cp_length,self._occupied_tones, self._snr, preambles,options.log)
line 107, in __init__
    self.connect((self.ofdm_sync,1), (self.ofdm_frame_acq,1))
  File "/usr/local/lib/python2.5/site-packages/gnuradio/gr/hier_block2.py", line
70, in connect
    self._connect(points[i-1], points[i])
  File "/usr/local/lib/python2.5/site-packages/gnuradio/gr/hier_block2.py", line
76, in _connect
    dst_block.basic_block(), dst_port)
line 946, in connect
    return _gnuradio_swig_py_runtime.gr_hier_block2_sptr_connect(*args)
ValueError: port number 1 exceeds max of 0

Thank you all for help us!!

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