[Top][All Lists]

[Date Prev][Date Next][Thread Prev][Thread Next][Date Index][Thread Index]

Re: [Discuss-gnuradio] Time syncing between SDRs on different computers

From: Markus Heller
Subject: Re: [Discuss-gnuradio] Time syncing between SDRs on different computers
Date: Wed, 16 Aug 2017 22:50:35 +0200

In case of a multilateration attempt, please consider this presentation:



Am Donnerstag, den 17.08.2017, 01:52 +1000 schrieb
> Are you trying to do MultiLateration using software defined radio ?
> -----Original Message-----
> From: Sylvain Munaut [mailto:address@hidden 
> Sent: Thursday, 17 August 2017 1:20 AM
> To: address@hidden
> Cc: address@hidden; GNURadio Discussion List <address@hidden>
> Subject: Re: [Discuss-gnuradio] Time syncing between SDRs on different 
> computers
> On Wed, Aug 16, 2017 at 5:11 PM,  <address@hidden> wrote:
> > What type of hardware? I thought from hardware point of view only 
> > precise clock is required and all the other things in firmware. I've 
> > naively thought i could modify hackrf firmware to get this feature.
> Mostly a FPGA and a PPS input from a GPS receiver.
> Each individual sample has a timestamp of when it has been received.
> And you can also reset the timestamp on the next  PPS edge.
> Technically it would be possible to modify the hackrf firmware and repurpose 
> some GPIOs and have all samples transmitted to the host be in timestamped 
> packets and implements timestamping in the on-board ARM.
> For additional hardware you'd only need an external GPS receiver (or some 
> other way to have both a single freq reference + single sync pulse).
> Cheers,
>     Sylvain
> _______________________________________________
> Discuss-gnuradio mailing list
> address@hidden
> https://lists.gnu.org/mailman/listinfo/discuss-gnuradio

reply via email to

[Prev in Thread] Current Thread [Next in Thread]