QUESTION

+1 vote
asked by
How do you improve GNSS & GPS accuracy?

Please log in or register to answer this question.

1 Answer

0 votes
answered by
selected by
 
Best answer

One of the most frequently asked questions of our engineers is about GNSS accuracy and improving it. There are several steps we recommend undertaking:

Firstly, review the antenna's matching circuit. Ensure it is tuned correctly, allowing the antenna to operate on the optimal frequency bands. If the antenna is not tuned correctly, then the reduced-performance antenna will convert lower signal strength to the receive.

Secondly, you may want to review elevation angle used for the SV. By default, most GNSS receivers aim to achieve the fastest fix time and mostly have a low elevation mask angle for the SV. If you increase the elevation mask angle from the default 5 degrees to 10, your receiver will ignore low-level SV.

Low-level SV tend to have the largest timing errors, simply because the atmosphere they pass through is the most challenging – and may contain SV that has been reflected from buildings.

Meet the moderators

Geoff Schulteis

Senior Antenna Apps Specialist at Antenova Geoff is an antenna design-in and OTA measurement specialist. His knowledge of FCC and world carrier requirements is second-to-none.

Dan Dobransky

Senior Antenna Apps Specialist at Antenova Dan is an antenna integration specialist. With years of design-in experience, he helps Antenova's customers wireless designs thrive.

download-guide-image

Antennas: The Comparison Guide

Find the perfect antenna for your project

Download
...