Hi Martin:
Thank you very much.But I test again and again,the rx_detect don't exist 1.And some little value approach 0 exists.But in the header stream chain some values exist.I think when 1 don't exist there shouldn't have value in the header stream chain.Why?
Best regards,
xd
At 2014-07-15 05:17:35, "Martin Braun" <address@hidden> wrote:
>On 07/15/2014 09:39 AM, xianda wrote:
>> Hi Martin:
>> Thank you for your kindly reply.
>> Another question I want to ask.
>> When I use the rx_ofdm,I add a UHD:USRP
>> Source.(Environment: USRP N210)I know when the block Schmidl &Cox OFDM
>> synch. detect the signal,the port "detect" will output 1.And I test it.I
>> use the rx_ofdm when I don't use the tx_ofdm.It means that no signal
>> exist.But I find 1 in the port "detect".Why?When no signal exist,it
>> should output 0.Why I see 1 from it?
>
>...bad luck? It's not impossible to generate false alarms. What did you
>feed the block?
>
>Martin
>
>
>
>> Thank you so much.
>> Best regards,
>> xd
>>
>>
>>
>>
>> At 2014-07-14 04:37:37, "Martin Braun" <address@hidden> wrote:
>>>On 07/13/2014 01:06 PM, xianda wrote: >> Hi all: >> Have you ever using
>> the >> gnuradio/gr-digital/examples/ofdm/rx_ofdm.grc?And I change the >>
>> rx_ofdm.py as follows: >>
>> self.connect((self.digital_ofdm_chanest_vcvc_0, 1), >>
>> blocks.file_sink(gr.sizeof_gr_complex * fft_len,
>> 'channel-estimate.dat')) >> And i use the matlab: > >Please read the
>> fine manual:
>>>http://gnuradio.org/doc/doxygen/classgr_1_1digital_1_1ofdm__chanest__vcvc.html#details.
>>> >The channel estimate is on a tag. > >M >
>>>_______________________________________________ >Discuss-gnuradio
>> mailing list >address@hidden
>>>https://lists.gnu.org/mailman/listinfo/discuss-gnuradi
>>
>>
>
>
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