Siin 2016
viewtopic.php?p=476495#p476495 toodud lingid on osad "surnud", aga tänaseks on teema uuesti aktuaalseks tõusnud.
Kuna oma vanu poste siin enam uuta ei saa, siis värskendan allikaid uue postitusega.
10 GPS Vulnerabilities
by Lieutenant Colonel Thomas K. Adams, US Army, Retired
https://cdn.preterhuman.net/texts/gover ... /adams.htm
Mitigating the Threat of GPS Jamming Anti-Jam Technology
NovAtel White Paper – June 2012
https://www.lunitek.it/wp-content/uploa ... -Paper.pdf
U.S. Air Force Chief Warns against Over-Reliance on GPS
https://insidegnss.com/u-s-air-force-ch ... ce-on-gps/
GPS Spoofing Detection via Dual-Receiver Correlation of Military Signals
https://gps.mae.cornell.edu/psiaki_etal ... ec2011.pdf
BAE Integrated GPS Anti-jam System (IGAS)
https://www.baesystems.com/en-media/upl ... 955758.pdf
Ja siis uuemaid arenguid...
Ukraine’s GPS-Guided Bombs Work Even When You Jam Their GPS
The JDAM is a GPS-guided bomb. But it also has an inertial guidance system that determines the bomb’s location by knowing its initial location and tracking its movement from that starting point. If the bomb loses the GPS signal, it still can strike its target—albeit with less accuracy.
https://www.forbes.com/sites/davidaxe/2 ... their-gps/
JDAM-ER Winged Bombs With Seekers That Home In On GPS Jammers Headed To Ukraine
https://www.twz.com/air/jdam-er-winged- ... to-ukraine
US to Provide Anti-GPS Jammer Sensors for Ukraine’s Precision-Guided Bombs
https://www.kyivpost.com/post/32163
*
Täpismoona tehnilised lahendused ja "hingeelu", ehk kuidas see töötab ja millised erinevad lahendused on olemas
http://ael.cbnu.ac.kr/ael/research/tech ... itions.htm
Sõnaseletusi:
IMU - Inertial Measurement Unit ehk inertsiaalnavigatsiooni andur/blokk
PGK - Precision Guidance Kit ehk moona "täppisjuhtimiskomplekt"
DOF correction - Degrees of freedom correction ehk parandus vastavalt lahendatud tundmatute arvule
nt. DOF-7 teeb parandusarvutusi korraga moona X, Y, Z koordinaatide väärtusi, rõhtpööret, kallet ja rullimist jälgides
Doppler shift ehk
Doppleri efekt
Initialization ja cold või hot start sellest kirjutasin siin:
viewtopic.php?p=520797#p520797
L1;L2;L5 kanalitest ja C/A; P/Y ning M koodidest kokkuvõtvalt kirjutasin siin:
viewtopic.php?p=520393#p520393