An investigation of microwave landing guidance system signal requirements for conventionally equipped civilian aircraft.

PDFTech ReportDOT-TSC-FAA-71-24Microwave landing systemsLanding aidsDigital simulationAzimuthAircraftWindTurbulenceUnited States. Federal Aviation AdministrationLanman, Maurice H. IIIJohn A. Volpe National Transportation Systems Center (U.S.)Volpe National Transportation Systems Center, Technical Reference CenterThe report describes efforts leading to the determination of minimum suitable scan rates for the azimuth and Elevation functions of the microwave Landing Guidance System (LGS) proposed by RTCA SC-117, based on performance requirements of two conventionally equipped civilian aircraft. Two complementary methods are used; one involving a full nonlinear digital simulation, the other involving direct covariance matrix propagation. Wind and turbulence models, aircraft models and LGS models are described in detail