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Hi, my name is Erik Luther, I'm an SDR Manager here at National Instruments at NIWeek 2013.
In this demo we have the NI USRP, which is a low-cost software defined radio platform.
It's great for spectrum monitoring and signal intelligence applications. The first thing
that we have going on here is we have an 802.11b WiFi hotspot. We're actually able to detect
that signal and decode it and show the demodulated name of the hotspot on the screen. The name
of this hotspot is USRP Demo, and if you look here closely, you can actually see the incoming
signal, which is a pretty powerful waveform because it's near the antenna. We're actually
decoding the name of the hotspot which is USRP Demo, and we're also estimating the power
level of that particular signal. In addition to that, we have two demos running on this
machine. We're also tracking airplanes using 80-SB or Mode S Radar. It's an unencrypted
signal that's transmitted by airplanes. I'm going to close our 802.11b demo and open our
Mode S demo. What you see here is we're watching the air and waiting for signals to come in
as airplanes fly over. We don't have great reception here in the convention center, but
occasionally we will see an airplane taking off from the Austin airport. After the plane
transmits that signal, which happens many times a second, we're actually able to acquire
that signal and decode it. Inside of that Mode S signal is the latitude, longitude,
altitude, as well as different types of information that's transmitted back to the tower, and
it's used as a secondary radar to allow them to use GPS information to locate the planes
and correlate that to data that comes from a more traditional radar setting. It's also
a signal that's transmitted from a plane, and other planes can receive it for collision
avoidance. They can see if other planes are nearing their own airspace. We took this one
step further, and we didn't just acquire these points and plot them in LabVIEW, we also took
that latitude, longitude and altitude and plotted it in Google Maps. We can open up
Google Maps. The Austin airport is right down here, and you can see that there are planes
sitting at the airport getting ready to take off. You can learn more by visiting ni.com/sdr
if you weren't able to visit this demo here at NIWeek. Thank you.