Abstract: An instrument landing system comprises: a wideband antenna configured to receive signals in a VHF band; and a receiver coupled to the wideband antenna and configured to implement SDR functions to analyze the signals for a flight inspection. A UAS comprises: an instrument landing system comprising: a wideband antenna configured to receive signals in a VHF band; and a receiver coupled to the wideband antenna and configured to implement SDR functions to analyze the signals for a flight inspection. A method comprises: receiving, using a wideband antenna, signals in a VHF band; and implementing, using a receiver coupled to the wideband antenna, SDR functions to analyze the signals for a flight inspection.

Abstract: A USV comprises a buoyant hull structure; an MCU coupled to the buoyant hull structure; a VHF radio coupled to the buoyant hull structure; a satellite radio coupled to the buoyant hull structure; a GPS coupled to the buoyant hull structure; a plurality of weather sensors coupled to the buoyant hull structure; a navigation and propulsion controller coupled to the buoyant hull structure; at least one thruster coupled to the buoyant hull structure and configured to provide propulsion; a battery coupled to the buoyant hull structure; a charge controller coupled to the buoyant hull structure; and a solar panel coupled to the buoyant hull structure and configured to charge the battery.