Thank you for your comments. Marcus, sorry for bugging you with this issue. I am well aware of the previous discussions with you, and have learned from them as well as from other people. however, when i come across something like this for example: https://www.youtube.com/watch?v=ZUqzdrB1o2U i keep thinking that there is some kind of heat signature in the spectrum that the cellular produces (please correct me if im wrong) how else can you explain this works?
I know my approch is not ideal, and i'm not ruling out opening a bts base station, but i cant find a way to make phones register to my station automatically.. thanks again for your comments guys, really appreciate it. Meny 2016-03-15 4:11 GMT+02:00 Nikos Balkanas <nbalka...@gmail.com>: > Indeed, there is phone locator protocol, and a service offered as by some > companies. They work through provider contracts. The problem is that you > have to know the phone number beforehand and the carrier. Not very useful > in a disaster case :( > > BR, > Nikos > > On Mon, Mar 14, 2016 at 5:50 PM, Marcus Müller <marcus.muel...@ettus.com> > wrote: > >> True, at least unless you send them something they have to react to. >> Which the phone will only do if you're the infrastructure, and usually >> implies you authenticate as such[2]. Which will hence most likely only work >> if the cellular providers cooperate with you. >> >> [...snip...] >> >> >> >> On 03/14/2016 03:54 PM, Meny Sidar wrote: >> >> Hi guys, >> >> I am currently working on a project for my university, where i'm trying >> to locate cellular phones using SDR (USRP B210). >> The idea of the project is to be able to find survivors/victims in >> disaster areas, such as earthquakes, by assuming they have their cellular >> on them. >> >> What i did so far, is a program that calculates and outputs in a loop the >> power transmitted from a cellular phone from it's uplink channel. that can >> tell me my distance to it. >> problem is, that cellular phones are usually in idle mode and not >> transmitting at all. >> So it works, but only if the phone is currently transmitting to the >> network (phone call, internet, etc..) >> >> I'm trying to find a solution for this, >> There has to be a way of knowing that some kind of RF >> transmitter/receiver is near me... >> If anyone can shed some light on this subject, what can i do or if i need >> to go in another way, i'll be very grateful! >> right now i'm stuck. >> >> Thanks a lot, >> Meny >> >> >> _______________________________________________ >> Discuss-gnuradio mailing >> listDiscuss-gnuradio@gnu.orghttps://lists.gnu.org/mailman/listinfo/discuss-gnuradio >> >> >> >> _______________________________________________ >> Discuss-gnuradio mailing list >> Discuss-gnuradio@gnu.org >> https://lists.gnu.org/mailman/listinfo/discuss-gnuradio >> >> > > _______________________________________________ > Discuss-gnuradio mailing list > Discuss-gnuradio@gnu.org > https://lists.gnu.org/mailman/listinfo/discuss-gnuradio > >
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