TY - JOUR AU - Svyd, I.V. AU - Obod, I.I. AU - Zavolodko, G.E. PY - 2020/12/23 Y2 - 2024/03/29 TI - Optimization of data processing in aircraft transponder of the "friend or foe" identification system JF - Radiotekhnika JA - RT VL - 4 IS - 203 SE - Articles DO - 10.30837/rt.2020.4.203.16 UR - http://rt.nure.ua/article/view/229381 SP - 162-169 AB - <p>The paper synthesizes the optimal structure of data processing of the aircraft transponder of the “friend or foe” identification system based on the Neumann-Pearson criterion. It is also shown, that when synthesizing and analyzing the optimal structure of signal data processing in aircraft transponders of "friend or foe" identification systems, it is necessary to take into account the multichannel reception of request signals and limitations of relative throughput of the aircraft transponder, which is caused by the existing principle of constructing the system as single-channel queuing system with failures. The proposed models make it possible to implement the structures of data processing of request signals for situations of inter-channel merging of previous channel decisions on the detection of request signals or pulse components of the request signals. In the proposed structure, the optimization of data processing is carried out not only in time but also in the spatial parameters of the request signals, and also takes into account the relative bandwidth of the aircraft responder. It is shown that the inter channel merging of the results of detecting the component pulses of the query signals is more preferable compared to the existing algorithm of merging the results of detecting the query signals, as it improves the quality of query signal detection and reduces the dependence of query signal detection of relative response.</p> ER -