The direction finding method by the time-modulated linear array (TMLA) is analyzed and verified. The direction of arrival (DOA) can be calculated out by analyzing the spectrum characteristic of the ...

This article describes an RF Direction Finding (DF) payload developed for UAV systems. DF payloads sense RF signals using an antenna array and process the received signals at each antenna location to ...

But, as we’ll be hearing in this programme, navigation at sea is easy compared to finding your way in outer space. After all, what’s up and what’s down for astronauts who are floating in ...