Fabian T. Faul, Jana Daubmeier, and Thomas F. Eibert
Adv. Radio Sci., 20, 9–15, https://doi.org/10.5194/ars-20-9-2023,https://doi.org/10.5194/ars-20-9-2023, 2023
In near-field in situ measurements the antenna under test may not be accessed to use specifically tailored test signals. Instead there is a need to tackle modulated field signals where short-time measurement approaches offer a way to transform such fields using time-harmonic near- to far-field transformations. Short observation times make such approaches especially useful in measurement scenarios where unmanned aerial vehicles are used to move the field probe.