Abstract: Many antennas are used in modern airplanes to perform various duties, sometimes in the same frequency range. As a result, it is preferable to minimise their mutual influence as much as feasible. The Radio Altimeter (RADALT) and Spiral Antenna Module (SAM) are numerically modelled using SuperNEC to discourage" and lower their coupling levels, as in the case of a RADALT and SAM mounted on an aeroplane's tail.
An intelligent tilt-rotor UAV with an integrated GPS/INS system and RADALT (radar altimeter) for automated takeoff and landing is being developed. The altitude is given through a GPS/INS integration system that is referenced to the WGS-84 ellipsoid, which is susceptible to external multipath conditions. The centimetre level accuracy of RADALT delivers the aircraft AGL (above ground level) height, which is based on ground surface parameters. Simple KF (Kalman Filter) configuration to merge altitude data from the GPS/INS integration system with the operational logic of RADALT. It is assessed using data from real-world flight tests.
Key words: Software development, RADALT, Altimeter, IBM DOORS, LDRA, CMULTI.
|
DOI:
10.17148/IJARCCE.2022.11667
