Re: [Discuss-gnuradio] how to generate a periodic pulse

[jmiggal]

Hi all,

I have the same doubt. I want to generate a pulse (with a duty cycle 
less than 50%) and I do not know how to do it.

I saw gr.sig_source_x but this only generate pulses at 50% duty cycle.

I tried to multiply several squares pulses at different frequencies and 
it works, I get a pulse of 12.5% duty cycle for example but it is 
semi-random since all signal generators are not coherent.

Please Can somebody help me to generate a pulse signal which I can 
change the pulse width?

Thanks,
Jorge.



Karthik-28 wrote:
> 
> On Mon, Feb 9, 2009 at 2:11 AM, Bruhtesfa Ebrahim
> <address@hidden>wrote:
> 
>> Hey all,
>>
>> I want to generate a periodic rectangular pulse(of low duty cycle) from
>> one USRP and receive it using another USRP operating simultaneously.
>>
>> So, is there some built in function to generate such a pulse?
>> Also,what filter do i need to apply before connecting the pulse source
>> to Usrp sink?
>>
>> Thanks!
>>
>> Bruhtesfa
>> --
>> Posted via http://www.ruby-forum.com/.
>>
>>
>> _______________________________________________
>> Discuss-gnuradio mailing list
>> address@hidden
>> http://lists.gnu.org/mailman/listinfo/discuss-gnuradio
>>
> 
> You can write your own block if you aren't able to find something that you
> can plug in from gnuradio. There is a source gr.sig_source_x which
> generates
> square pulses, which you can modify to suit your requirements. The actual
> period of the waveform coming out of the USRP will depend on the length of
> the sequence and what your interpolation setting is. However, that is
> something that you can work out.
> 
> Karthik
> 
> _______________________________________________
> Discuss-gnuradio mailing list
> address@hidden
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> 
> 

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