Analyzing DME Interference on JTIDS in the Time Domain

To solve the shortcoming of the present method of pulse overlap calculation that the pulse stream must accord with the Poisson distribution, probability statistics method is used to construct a model to calculate pulse overlap probability based on the periodic characteristics of pulses in this paper. Using this periodic pulse overlap method (PPOM), we analyzed the interference in the time domain from Distance Measuring Equipment (DME) to Joint Tactical Information Distribution System (JTIDS) [4]. Compared with the present Poisson distribution method (PDM), PPOM is much more consistent with simulation than PDM especially when pulse stream does not correspond with Poisson distribution.