Better GPS receivers in phones, 2018

[Mistake Not...]

https://spectrum.ieee.org/tech-talk...urate-gps-chips-coming-to-smartphones-in-2018

today Broadcom announced that it is sampling the first mass-market chip that can take advantage of a new breed of global navigation satellite signals and will give the next generation of smartphones 30-centimeter accuracy instead of today’s 5 meters. Even better, the chip works in a city’s concrete canyons, and it consumes half the power of today’s generation of chips.

Still reading the article, but it doesn't sound like it relies on WAAS. Something about a new set of "L5" satellites or something.

FAA would never allow it, but I wonder if you could do an LPV approach with one of these on a tablet...

 

[Mistake Not...]

Does this do anything to reduce / eliminate the need for a ground based correction (WAAS), or will we still need that?

 

[denverpilot]

An overview of the nitty gritty details can be found in the wiki article on the Block IIIA satellites.

https://en.m.wikipedia.org/wiki/GPS_Block_IIIA

They're just starting to be placed in orbit, and the final completion of the new capabilities isn't really due until 2022.

Chipsets have to start being made now, or nobody can test and see if things are working as planned.

 

[Mistake Not...]

Interesting. Looks like the answer is "Yes". WAAS becomes unnecessary:

The immediate effect of having two civilian frequencies being transmitted from one satellite is the ability to directly measure, and therefore remove, the ionospheric delay error for that satellite. Without such a measurement, a GPS receiver must use a generic model or receive ionospheric corrections from another source (such as a Satellite Based Augmentation System). Advances in technology for both the GPS satellites and the GPS receivers have made ionospheric delay the largest source of error in the C/A signal.

 

[Lachlan]

But will the routes still be magenta??? Think of the children!