Posted on 09/29/2020 9:12:00 AM PDT by srmanuel
I don't know. But it is rather like the Army learning operating in a poison gas environment.
It is a skill which may be useful for a very limited circumstances. But, we train to be able to operate in protective gear.
Wonder if that’s the main goal, (or if the main goal is even more spooky and still hidden) rather than a by-product.
Kinda like Howard Hughes and the Glomar Explorer...
Looking for “manganese nodules”, instead of actually grabbing a sunken soviet sub.
Oh yes...Sailing is a whole other thing! :-)
As if it matters whether you go for it or not.
Thank you for informing me, I would have never figured that out on my own...
You are welcome. Never too late to learn my mother used to say.
“How do you propose to teach a cruise missile to use a compass and a map?”
How do you think cruise missiles worked before GPS?
Compass and map.
Seriously.
No, they used dead reckoning. They didn’t use a compass and map. :P
I don’t know where we would be in this forum without fact checkers like you keeping everyone straight...
Terrain scan, compare to map. I recall that breakthrough happening.
I have Starlink in my Subara. Is this the same Starlink or something different?
Yeah... that didn’t work out as well as planned because when the internally stored map and the radar returns didn’t match, the thing would give up and wander off or crash or both. Also, the radar emissions from terrain following radar gave the things away. It didn’t last long.
Different product, same name.
I probably should have referred to we instead of you in that first post. It was meant in humor but you took it personal. The second response was sarcastic answer to your whine.
Britain bought a company that went bankrupt in the midst of launching a smaller constellation of about 1,300 LEO satellites. Britain was severed from participation of the European version of GPS known as Galileo, due to the Brexit vote. As this is not a completely new concept, perhaps this is their compensating move.
P.S.
Some sources state that a StarLink satellite runs algorithms which provides for self-knowledge of position to centimeter accuracy. This could confer an operational advantage, considering that a laser interlink is intended for node-to-node bucket brigade style relay of coms traffic about the globe—pointing accuracy. Reduced chance of intercept.
The U.S.military already uses the Iridium satellite network for high integrity jam resistant GPS under the name of IGPS. The Iridium signal is upwards of a million times stronger at ground level. The I birds transmit the full GPS almanac and orbital parameters in less than a minute compared to 12 with GPS. In addition to also transmitting a CDMA time epoch signal that’s encrypted that is used a a pseudo GPS satellite adding 60+ more usable signals to the IGPS enabled receiver. IGPS is also capable of using the older Transit Doppler effect navigation method due to the low earth orbits of the iridium birds , only a single signal from a single iridium birds is needed for a Doppler transit fix. The actual transit system was not retired until 1997 having served as the sole sat nav system for the Navy since the 1960s. Starlink can and almost assuredly will also transmit GPS almanac data and a CDMA time signal from each of an expected 30,000 birds with dozens visible at once at lower levels in the spot beams well over a million times stronger than GPS. A system of such magnitude will be for all purposes unjammable as one birds will always be visible in a beam formed null of a military grade active antenna system. Military units have phased array antenna with active beam steering any ground based hammer will simply be nulled as the antenna points it’s beam upwards to one of thousands of satellites all broadcasting a high integrity jam resistant GPS signal with low earth orbit Doppler shift allowing single bird convergence of the least sums Taylor matrix fix.
Starlink is a drone pilots dream system. Gigabits of laser linked low latency data. All with pencil phased array steered beams in both directions. Starlink will allow the worldwide real time control and ISR data backbone for tens of thousands of drones simultaneously. The Air Force has twice now down real time testing while airborne. They saw 600+ mbps speeds and sub 30ms latency starlink is a total game changer. They also used it in an F35 just recently in what they termed as high dynamic flight, people should read that as supersonic while maneuvering at high Gs as is to be expected in combat.
Inmarsat vs Starlink Antennas
https://turbofuture.com/industrial/Inmarsat-vs-Starlink-Antennas
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