The Influence of Narrowband Interference on DME System Operation

Within the new air traffic management concept, using Global Navigation Satellite System (GNSS), it is assumed that distance measurement equipment (DME) will be retained. The results of research carried out by several authors have confirmed global navigation satellite systems (GNSS) can put operation in cases interference. Therefore, very timely to investigate accuracy and resistance interference DME systems. presented work contains field assessment a system, which works conditions narrowband interference, modeling simulation. Based on derived model signal, its parameters, algorithms for processing signals system were derived. A quasi-optimal nonlinear filtering method was used derivation signal-processing algorithms. quadratic loss function as an optimality criterion, allows us obtain measuring parameters signal minimum posteriori mean error. this method, Gaussian approximation large small parameter methods used. Simulation depends stability frequency support generator, also signal-to-noise ratio signal-to-interference receiver input. Comparing designed with listed published discuss we conclude much better. simulation potential equal 2.2 m. However, mentioned require substantial simplification real-time processing. This our next direction.