Method for characterizing the density of mode S interrogations and responses and a secondary radar implementing the method

摘要

The density of mode S interrogations and responses in the environment covered by a secondary radar is characterized according to the following steps:-the radar: o modulates the mode S targets to the interrogations emitted by the radar. To detect and locate by their synchronous responses to; o Detect asynchronous responses emitted by mode S targets and thus not elicited by the radar (32); o for each target, associating its synchronous responses to the radar with its asynchronous responses (33), a first step; -The radar (R1): o, based on the association, determine the response rate of each target by counting the number of synchronous and asynchronous responses received from the target per given time period (35); o As the environment is divided into basic spatial cells, a second step of determining a response rate per cell is determined by counting the number of synchronous and asynchronous responses received by each target in each cell, wherein the rate is Characterize the density of mode S interrogations.