GNSS

Question 1

Errors occurring in Ionosphere?

Answer 1

Ionised particles - can be fixed through mathematical modelling

Question 2

Error occurring in Troposphere?

Answer 2

Weather - causes relatively little error

Question 3

What is dilution of precision? (DOP)

Answer 3

Used to specify the additional multiplicative effect of navigation satellite geometry on positional measurement precision

Question 4

Are higher or lower values of DOP desirable?

Answer 4

Lower