[Top][All Lists]
[Date Prev][Date Next][Thread Prev][Thread Next][Date Index][Thread Index]
Re: [Discuss-gnuradio] modulation and demodulation
From: |
yyzhuang |
Subject: |
Re: [Discuss-gnuradio] modulation and demodulation |
Date: |
Sun, 29 Mar 2009 13:53:14 -0700 (PDT) |
Thanks
Oh yes the "-m" specifies the mod and demod. But the modulation seems
related to some other parameters, which I can't see with the "-h" option. We
can change the rate by --bitrate, but how about transmit power, and receiver
acquisition loop?
BTW, does anybody have the correct parameters setting for DBPSK and DQPSK?
We are doing a project, the deadline is approaching. Thanks a lot.
Yanyan
Tom Rondeau wrote:
>
> yyzhuang wrote:
>> Hi,
>>
>> I'm pretty new in working with gnuradio. Could you please tell me a bit
>> of
>> detail about how to change the symbol rate, transmit power, and receiver
>> acquisition loop (command line? the script code?) Thanks a ton!!
>>
>> Yanyan
>>
>
> We use OptionParser for all of our command-line applications which has
> the neat attribute that you can use "-h" with the command. This will
> print out the help page for any command-line program.
>
> Tom
>
>
>> Tom Rondeau wrote:
>>
>>> yyzhuang wrote:
>>>
>>>> Hi All,
>>>>
>>>> We are trying to set different modulation and demodulation schemes in
>>>> gnuradio example tunnel.py. The default is gmsk, which works fine. But
>>>> when
>>>> we used -m dbpsk option, the two PCs can't ping each other (although
>>>> after
>>>> ifconfig setup, both sender and receiver have output like: Tx:
>>>> len(payload)
>>>> = 192 ). I looked through the script
>>>>
>>>> tb = my_top_block(mods[options.modulation],
>>>> demods[options.modulation],
>>>> mac.phy_rx_callback,
>>>> options)
>>>>
>>>> It should be ok if we specify a different modulation with -m, unless
>>>> there's
>>>> other settings needed. Can anybody help us with the problem? Thanks a
>>>> lot.
>>>>
>>>> Yanyan
>>>>
>>>>
>>> I have used DBPSK and DQPSK fine with tunnel.py. You will probably have
>>> to play with the symbol rate, transmit power, and possibly the receiver
>>> acquisition loop settings.
>>>
>>> Tom
>>>
>>>
>>>
>>> _______________________________________________
>>> Discuss-gnuradio mailing list
>>> address@hidden
>>> http://lists.gnu.org/mailman/listinfo/discuss-gnuradio
>>>
>>>
>>>
>>
>>
>
>
>
> _______________________________________________
> Discuss-gnuradio mailing list
> address@hidden
> http://lists.gnu.org/mailman/listinfo/discuss-gnuradio
>
>
--
View this message in context:
http://www.nabble.com/modulation-and-demodulation-tp22760047p22772588.html
Sent from the GnuRadio mailing list archive at Nabble.com.