Jamming and "Spoofing" aircraft GPS

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MUTNAV

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Something to be aware of is an increase in Jamming and "spoofing" (which I assume they mean meaconing) GPS signals of aircraft overseas. At some point it may end up here. Fortunately we're supposed to maintain a minimal ground nav-aids network to help deal with this kind of thing.

www.dailymail.co.uk

Russia suspected of targeting thousands of British holiday flights

The planes appear to be suffering from GPS jamming and spoofing, which uses fake signals to trick pilots into believing the aircraft is in a different location than where they actually are.
www.dailymail.co.uk www.dailymail.co.uk

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Joel
 
merlin

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Are you certain it isn't from the solar activity last couple days ? there have been so awful bad solar noise reching 20/S9 that is wiping out
comms from 30 Mhz and up.
Got this from the British naval observatory.
 
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It has been going on for awhile, more than the solar noise, and I think the way they use the term spoofing, is meant to imply simulating a GPS constellations signals.

It's one of the oldest tricks in the book *maybe even going back to greek middle ages) the setting up a "false light", starting fires on shore to make a ship think that the entry to a harbor is in a different spot, and lure them into shoals where pirates can take the cargo of the grounded ship.

In Vietnam and other areas, nav-aid signals were sometimes simulated to try and get aircraft to fly into forbidden areas that would justify a shoot down or at least a diplomatic incident.

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Joel
 
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drdispatch said:
Yes and no.

Free Article : Jamming and Spoofing

Recognising and dealing with threats to marine navigation systems
www.nautinst.org www.nautinst.org
Click to expand...
Yikes.... the meaning of meaconing (to me) was always the false light thing.

Apparently it's called "spoofing". Terminology wise, I think I prefer "false light" but that is a legal definition for something else... Ughhh.

This article shows a good example of how it can cause problems.

The Serious Threat Of GPS Spoofing: An Analysis | Aviation Week Network

Thanks
Joel
 
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cg

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BEIRUT — For the past few months, the U.S.-operated Global Positioning System has been listing planes, people and even ships hundreds of miles from Lebanon in a surprising place — Beirut's international airport.

It's the result of a practice called GPS "spoofing" — which sends false location signals to satellites that overwhelm the real signals.

The operations, which researchers have traced to Israel, are intended to deter rockets and missiles but are at the same time increasing risks for airline passengers while forcing pilots and ship captains to abandon automated safety systems developed over decades.

 
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cg said:
BEIRUT — For the past few months, the U.S.-operated Global Positioning System has been listing planes, people and even ships hundreds of miles from Lebanon in a surprising place — Beirut's international airport.

It's the result of a practice called GPS "spoofing" — which sends false location signals to satellites that overwhelm the real signals.

The operations, which researchers have traced to Israel, are intended to deter rockets and missiles but are at the same time increasing risks for airline passengers while forcing pilots and ship captains to abandon automated safety systems developed over decades.

Click to expand...
Fair enough. I really like how they say that they're sending false signals to the satellites though, not sure how that would work.

I'm guessing that the advantage of giving the GPS receivers a false location vs. just making the signals unusable, is that it would show up as a usable signal, and therefore not force an alternate navigation system to take over, or maybe make a person launching a missile think they are getting a good GPS lock prior to launch.

Thanks
Joel
 
BinaryMode

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Just remember that a 737NG for example has two laser precision gyros. GPS is just to augment the system. I've read submarines near the surface and release a buoy every once in a while to get a GPS fix to resync the Gyro.

The Apollo missions and beyond all used Gyros. DARPA was working on an INS (Inertial Navigation System) on a chip and I often wondered what ever happened with that. Would be great for combines, cars, smartphones, etc.

Moral of the story is to never depend on GPS. I've been saying this for years. This new generation probably couldn't read a map let alone a phone book. LOL
 
drdispatch

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MUTNAV said:
Yikes.... the meaning of meaconing (to me) was always the false light thing.

Apparently it's called "spoofing". Terminology wise, I think I prefer "false light" but that is a legal definition for something else... Ughhh.

This article shows a good example of how it can cause problems.

The Serious Threat Of GPS Spoofing: An Analysis | Aviation Week Network

Thanks
Joel
Click to expand...
When I was stationed in Germany (1979-1981), we had to file a MIJI Report (Meaconing, Intrusion, Jamming, & Interference) with the Defense Communications Agency-Europe due to a signal that all but wiped out one of our microwave links.
 
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BinaryMode said:
Just remember that a 737NG for example has two laser precision gyros. GPS is just to augment the system. I've read submarines near the surface and release a buoy every once in a while to get a GPS fix to resync the Gyro.

The Apollo missions and beyond all used Gyros. DARPA was working on an INS (Inertial Navigation System) on a chip and I often wondered what ever happened with that. Would be great for combines, cars, smartphones, etc.

Moral of the story is to never depend on GPS. I've been saying this for years. This new generation probably couldn't read a map let alone a phone book. LOL
Click to expand...
Yes... Lots of aircraft have INS's and alternate means of navigation.... I think part of the problem that was being pointed out was that the flight management system seems to be programmed to trust the GPS signals more than the INS or other systems... and with spoofing, you don't get a red flag covering part of the instrument making it clear to the aircrew that the information is not correct (like you do for an ILS or VORTAC.

Thanks
Joel
 
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BinaryMode said:
Just remember that a 737NG for example has two laser precision gyros. GPS is just to augment the system. I've read submarines near the surface and release a buoy every once in a while to get a GPS fix to resync the Gyro.

The Apollo missions and beyond all used Gyros. DARPA was working on an INS (Inertial Navigation System) on a chip and I often wondered what ever happened with that. Would be great for combines, cars, smartphones, etc.

Moral of the story is to never depend on GPS. I've been saying this for years. This new generation probably couldn't read a map let alone a phone book. LOL
Click to expand...
The INS on a chip idea may have been replaced with going back to celestial navigation, with modern "staring focal plane arrays", with the ability to see stars despite full daylight, it completely takes away the ability to spoof.

Both myself and brother and sister, have worked on maps when the children were young. One effort was to go to an amusement park, but the kids had to do the navigation planning and execution to get there (lefts and rights and how far).

There are lots of opportunities for practicing navigation (even large malls), it's a good bonding time, although it requires the parents to pretend to be a little stupid and need bailing out.

Thanks
Joel
 
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drdispatch said:
When I was stationed in Germany (1979-1981), we had to file a MIJI Report (Meaconing, Intrusion, Jamming, & Interference) with the Defense Communications Agency-Europe due to a signal that all but wiped out one of our microwave links.
Click to expand...
Us also, the problem was that we in maintenance had to make sure it wasn't an equipment problem first, then if it wasn't, we would turn it over to the operators to fill out the report, who were almost helpless with trying to fill one out.:(

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Joel
 
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cg said:
BEIRUT — For the past few months, the U.S.-operated Global Positioning System has been listing planes, people and even ships hundreds of miles from Lebanon in a surprising place — Beirut's international airport.

It's the result of a practice called GPS "spoofing" — which sends false location signals to satellites that overwhelm the real signals.

The operations, which researchers have traced to Israel, are intended to deter rockets and missiles but are at the same time increasing risks for airline passengers while forcing pilots and ship captains to abandon automated safety systems developed over decades.

Click to expand...
The sentence should have been: "sends false signals imitating a GPS satellite signal signal". Almost every (all?) news item I have ever seen about GPS wrongly thinks GPS receivers transmit to the satellites.
 
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JustinWHT said:
The SR-71 Black Bird used an optical star tracker.
theaviationgeekclub.com

SR-71 Astroinertial Navigation System was crucial in Blackbird mission.

The SR-71 Astroinertial Navigation System, aka R2-D2, was crucial in Blackbird reconnaissance mission. Here’s why.
theaviationgeekclub.com theaviationgeekclub.com
Click to expand...
It wasn't just those, but even the Hound dog missile used a simplified astro-navigator, and it was relatively short range. (correction, 700 miles)


I just looked it up, and apparently the astro-tracker stayed with the pylon the missile was attached to, and was used to update the INS prior to launch, why they couldn't completely use the B-52s systems is a mystery to me.

OT slightly... The hound dog missiles were the things that let it compete with the number of engines on a B-36... A B-36 had 6 prop engines and 4 jets for extra power.

The B-52 has only 8 engines, but could use the hound dog missiles engines for help with take off (the missiles being refueled by the B-52 in flight).



The point I'm trying to make is that with the sensitivity of modern electro-optics, it can all be done during daylight.

Thanks
Joel

Thanks
Joel
 
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