Future-proofing with GNSS

Chapter 4: Less can be more

Less can be more

The more signals that can be simultaneously received and the higher the receiver sensitivity, the higher the level of measurement noise. The stated objective in creating the GS16 was to develop a dynamically and automatically adjusted receiver that selects the best signal and retrieves the best of multiple frequencies from all GNSS systems for the situation in real time.

For example, the large number of channels enables the simultaneous measurement of different modulations on the same carrier frequency. The simplest illustration of this is the simultaneous use of L2C and L2P on the L2 carrier frequency. Both signals are compared and an ad hoc decision is made about whether the more exact L2P, the stronger L2C or both signals should be used. Signals that are too weak can also have an adverse effect on the result – less can in fact, be more.

This intelligent technology, which enables the best signal to be selected according to application, is called RTKplus. Essentially, RTKplus consists of an improved GNSS antenna, a new GNSS measurement engine and a new RTK algorithm, which work in harmony and have only one objective: to determine the best position from a maximum number of observations.

Explore next chapter: Increasing the stability of RTK correction data

Story: Future-proofing with GNSS
Chapter 1: Introduction
Chapter 2: New high precision receivers bring opportunities
Chapter 3: New Leica Viva GS16 GNSS smart antennae future proofs business
Chapter 4: Less can be more
Chapter 5: Increasing the stability of RTK correction data