Hi!all I am perform on UWB through wall radar research. The most advanced through wall radar system is the "Xaver 800" produced by Israel Camero-Tech Ltd. The "Xaver 800" used the ultra short pluse with bandwidth about 7GHz. How to sample and digitalize such wideband signals? If i must get a AD converter faster than 7G? Thanks _____________________________________ Do you know a company who employs DSP engineers? Is it already listed at http://dsprelated.com/employers.php ?
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Started by ●May 6, 2007
Reply by ●May 7, 20072007-05-07
On May 6, 10:55 pm, "sugarfish" <tangyu0...@yahoo.com.cn> wrote:> Hi!all > I am perform on UWB through wall radar research. The most advanced > through wall radar system is the "Xaver 800" produced by Israel > Camero-Tech Ltd. The "Xaver 800" used the ultra short pluse with bandwidth > about 7GHz. How to sample and digitalize such wideband signals? If i must > get a AD converter faster than 7G? Thanks > > _____________________________________ > Do you know a company who employs DSP engineers? > Is it already listed athttp://dsprelated.com/employers.php?Does it go through clothes too??!!!
Reply by ●May 7, 20072007-05-07
<gyansorova@gmail.com> wrote in message news:1178519133.968236.34200@n59g2000hsh.googlegroups.com...> On May 6, 10:55 pm, "sugarfish" <tangyu0...@yahoo.com.cn> wrote: > > Hi!all > > I am perform on UWB through wall radar research. The most advanced > > through wall radar system is the "Xaver 800" produced by Israel > > Camero-Tech Ltd. The "Xaver 800" used the ultra short pluse withbandwidth> > about 7GHz. How to sample and digitalize such wideband signals? If imust> > get a AD converter faster than 7G? Thanks > > > > _____________________________________ > > Do you know a company who employs DSP engineers? > > Is it already listed athttp://dsprelated.com/employers.php? > > Does it go through clothes too??!!! >That is THz Radar Wim
Reply by ●May 7, 20072007-05-07
Wouldn't you expect to use an analog matched filter followed by a filter prior to conversion to digital waveform? A/D conversion is getting faster but I think the top limit is around 5 GHz. In article <1178519133.968236.34200@n59g2000hsh.googlegroups.com>, gyansorova@gmail.com wrote:>On May 6, 10:55 pm, "sugarfish" <tangyu0...@yahoo.com.cn> wrote: >> Hi!all >> I am perform on UWB through wall radar research. The most advanced >> through wall radar system is the "Xaver 800" produced by Israel >> Camero-Tech Ltd. The "Xaver 800" used the ultra short pluse with bandwidth >> about 7GHz. How to sample and digitalize such wideband signals? If i must >> get a AD converter faster than 7G? Thanks >> >> _____________________________________ >> Do you know a company who employs DSP engineers? >> Is it already listed athttp://dsprelated.com/employers.php? > >Does it go through clothes too??!!! >
Reply by ●May 8, 20072007-05-08
On May 8, 2:51 am, John_W_Her...@yahoo.com (John Herman) wrote:> Wouldn't you expect to use an analog matched filter followed by a filter prior > to conversion to digital waveform? A/D conversion is getting faster but I > think the top limit is around 5 GHz. > > In article <1178519133.968236.34...@n59g2000hsh.googlegroups.com>, > > gyansor...@gmail.com wrote: > >On May 6, 10:55 pm, "sugarfish" <tangyu0...@yahoo.com.cn> wrote: > >> Hi!all > >> I am perform on UWB through wall radar research. The most advanced > >> through wall radar system is the "Xaver 800" produced by Israel > >> Camero-Tech Ltd. The "Xaver 800" used the ultra short pluse with bandwidth > >> about 7GHz. How to sample and digitalize such wideband signals? If i must > >> get a AD converter faster than 7G? Thanks > > >> _____________________________________ > >> Do you know a company who employs DSP engineers? > >> Is it already listed athttp://dsprelated.com/employers.php? > > >Does it go through clothes too??!!!I know other radar apart from the Xaver that also obtains good results, but they are not commercial but for research. These kind of signals with so high bandwidth are usually demodulated before digitalization. You can search more information in the web, searching for Continous-wave radar (CW-radar). After this demodulation, bandwidth only depends on desired range coverage.
