I appreciate the constructive replies. High precision Galileo is accurate to ~10cm while the standard precision is about ~1 metre. So what new applications does this precision offer? What current applications are improved?
1. Cruise missiles / Precision-guided munition
- Guided weapons will destroy everything within 10's of metres, so targetting more accurately than 1 meter makes negligible difference.
- Mobile targets require weapons with localised target tracking
2. Avoiding collateral damage - eg schools being blown up rather than the nearby military target
- 1 metre precision is sufficient to avoid this.
- building surveyors need much greater precision than 10cm, so conventional survey equipment must still be used.
- surveying natural geography could benefit - but isn't worth investing £billions
4. Transport system & autonomous vehicles.
- 1 metre accuracy is sufficient for route planning
- high precision positioning cannot replace the need for lidar / camera sensors to respond to surroundings
5. mapping minefields and paths through them
- 10 cm is better than 1m, but is it sufficient to guarantee avoiding mines without the use of other sensors?
6. "Power of a state / country is measured against their capability (and resolve), and without precision gps, UK's already lost."
- It's up to every state to decide their own priorities. I disagree that higher precision GPS (below 1m) offers much advantage. Ownership of a satellite positioning system does not guarantee access. Dependence on satellite positioning should be avoided.
> "people who disagree with me are even allowed to express their opinions"
I don't advocate censorship, but respected opinions should be founded on accurate information and reasoning.