Performance test of unmanned aerial systems communication links in a severe multipath environment

This paper discusses the results of exploratory research in analyzing the electromagnetic compatibility (EMC) of commercially available radio frequency transceivers co-located within the chassis of an Unmanned Air System (UAS). Tests were performed on a UAS with multiple communication systems onboard encompassing frequency bands with center frequencies of 915 MHz, 2.4 GHz, and 5.8 GHz. These tests were performed in a normal operational environment a.k.a free space and also inside a multipath environment where the UAS was subjected to performance evaluation i.e. the status of the communication systems of the UAS were monitored while there is no external EM threat and also while applying an external EM field.