Interference and Signal Strenght

Nistorescu Sorin

Active Member

When delivery, I think all Javad receivers should have, a printed (attached) report to certify the compliance for resilience against (legal) interference from neighbor bands, at least in Europe.
 

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  • GNSS-RxT_RED-test-system.pdf
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Nistorescu Sorin

Active Member
I wonder if during it's 8.32 min session flight in Berlin 2017, Triumph-F1 did record any interferences parameters or make any "environment" scan (at start), as we can definitely see all the progress that has been made by Javad receivers in recent years in jamming/spoofing detection/mitigation and mapping them
could better help us in our work.

We can just remember the moment related from ION GNSS+2017 Conference in Portland (frustrating at that time, seems funny now) where spoofing was a major topic and somehow, by chance, a GNSS simulator has created confusion among the participants.
http://insidegnss.com/spoofing-incident-report-an-illustration-of-cascading-security-failure/

Now, as an actual subject, creating an interference map seems to become a good objective, here at Javad we have the right tools for jamming and spoofing, but others are the ones who promote the good work.
http://gpsworld.com/innovation-tracking-down-interference-with-likelihood-mapping/

The ability to visualize the power received across the input frequencies (front-end) bands or some parameters calculated from the average values/calibration of AGC that can show interferences magnitude and many other indicators are now a reality in Javad receivers. In my opinion, they just only need to be promoted properly, like others do.
 

Nistorescu Sorin

Active Member
Just ask and Dr. Javad will surely answer:


Very good promotion and explanations for a several years work to implement jamming/spoofing tools in Javad receivers. Also, Triumph-3 is there and can perform all of this, and many more..
 

Javad

Administrator
Staff member
JAVAD GNSS
5PLS
Just note that interference protection is an "option" that must be ordered during purchase. It is NOT free. Viewing it in TRIUMPH-LS is free.
 

Nistorescu Sorin

Active Member

Maybe we should mention here a few words about Open Service Navigation Message Authentication (OS-NMA) which is a free Galileo anti-spoofing protection service (E1 frequency).

OS-NMA enables authentication of the navigation data on Galileo satellites and could be implemented in most receivers by only updating their firmware, without additional receiver redesign. Is there any planned firmware upgrade/NOT free option for OS-NMA anti-spoofing protection in Javad receivers?
 

Nistorescu Sorin

Active Member
Indeed, a J-Target painted module could be attached on the back of the LS. But the external painted module could also hide an inside clock. Miniature Atomic Clock (MAC):

"Today a GPS device must be able to see four satellites to get a fix on its location. Adding an atomic clock would let a receiver get by with links to just three satellites And if you don’t care about altitude, you could get by with two. So it would help in a lot of urban canyon situations and improve a GPS unit’s performance in terms of the time it takes to get a fix on the satellites".

And the LS could be spoofing/jamming independent with some kind of a (cloud) GNSS firewall:


Probably a race for the first GNSS+MAC receiver is out there..
 
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