PNT topics in the Lange-Electronic blog

25 Jan, 2024

Why it is so difficult to navigate to the moon

GNSS Simulation

And which developments should solve this problem in the near future After more than half a century, humans return to the moon. This time with the intention of staying to explore and use the moon. NASA and ESA are therefore working on the defi...

17 Mar, 2023

Challenges in the modeling of LEO orbits

GNSS Simulation

Low Earth Orbit (LEO) satellite constellations promise a revolution in communications. Understanding and overcoming the specific challenges of testing satellites in LEO orbits is a crucial step in accelerating this development. To model the or...

01 Nov, 2022

Transfer precise time and frequency manually

Time and Frequency Transfer

In some places, no cable can be laid and no radio signal can be received, but precise timing is still required for synchronization. The construction of some ships does not allow cable ducts through thick walls, while at the same time preventi...

31 Oct, 2022

Tests of CRPAs and other adaptive GNSS antenna systems

GNSS Simulation

How to test complex active GNSS antenna systems? The ability to respond correctly to jamming and spoofing attacks is a key feature of GNSS receivers in critical environments. The threat of interference to sensitive GNSS signals is increasing,...