A method, system, and computer-readable medium for performing a hazard analysis of navigation aid equipment using an external safety monitor. Aspects include monitoring performance of the navigation aid equipment. In addition, determination is made if an improper performance of the navigation aid equipment is detected. Furthermore, removal of a signal from an antenna of the navigation aid equipment may occur when improper performance of the navigation aid equipment is detected.

A method, system, and computer-readable medium for performing a hazard analysis of navigation aid equipment using an external safety monitor. Aspects include monitoring performance of the navigation aid equipment. In addition, determination is made if an improper performance of the navigation aid equipment is detected. Furthermore, removal of a signal from an antenna of the navigation aid equipment may occur when improper performance of the navigation aid equipment is detected.

Disclosed are techniques for wireless sensing. In an aspect, a first sensing node obtains one or more sensing measurements of one or more sensing reference signals transmitted by a second sensing node and reflected by a target sensing reference unit (SRU), and reports the one or more sensing measurements to a sensing management entity, wherein a location, a velocity, or both of the first sensing node are known to the sensing management entity, wherein a location, a velocity, or both of the second sensing node are known to the sensing management entity, and wherein a location, a velocity, or both of the target SRU are known to the sensing management entity

A self-diagnosing FMCW radar level gauge and a method for providing self-diagnosing with a radar level gauge is provided in a radar level gauge comprising a transceiver, a mixer, a signal propagating device and a signal propagation path connecting the transceiver and the signal propagating device, a filter arrangement and processing circuitry. The filter arrangement provides a filtered intermediate frequency signal. The transceiver outputs either a diagnostic sweep configured such that a reference echo from the signal propagation path is detectable in said filtered intermediate frequency signal, or a measurement sweep configured such that the reference echo is suppressed in the filtered intermediate frequency signal and that a surface echo is detectable. The processing circuitry is configured to self-diagnose the radar level gauge based on the reference echo, and to determine the distance to the surface based on the surface echo.