MLS Mathematical Model Validation Study Using Airborne MLS Data form Midway Airport Engineering Flight Tests, August 1988.

摘要

This Microwave Landing System (MLS) mathematical model validation study evaluated the performance of the MLS math model by comparing the results of the model's simulation of flight test profiles flown at Midway Airport in Chicago with actual airborne data collected during the test flights. The study specifically addressed the problems of scattering and shadowing of MLS signals by buildings in the airport environment. The study found that comparisons of model output with real world data showed good agreement. Discrepancies between the two were explainable as either the model's sensitivity to input parameters or the model's 'worst case scenario' strategy. The study supports the conclusion that the MLS math model is a valuable tool for use in the evaluation of potential sources of signal interference for an MLS system configuration in a particular airport environment. (kr)