| 摘要 |
The present invention relates to air, especially commercial traffic surveillance and, more particularly, to ground/aircraft cooperative systems which allow the aircraft, present in a specified volume, to be located in terms of radial distance and azimuth and to be interrogated. Said invention permits a reference value for a response, contained in a receiving signal of a secondary radar, to be determined, even in case of high noise pollution level, especially in case of interlinking between S-mode responses. To this end, the position of the pulses, present in the receiving signal (SRC), is located (IMP); possible pulse positions of the relevant response are determined (FLT) and time windows are selected, whereby each time window locates a stable part (STB) of a pulse in the receiving signal, the position of which is located and the located position of which corresponds to a determined possible position and whereby the reference value is the value of most samples of the receiving signal, said samples being located in the selected time windows. |
