DEVICE FOR DETECTING AMONG MULTIPATH SIGNALS THE SIGNALS OF TRANSPONDERS INTERROGATED BY A SECONDARY RADAR

摘要

device for detection of signals 18 repondeurs interviewed by secondary radar in the presence of multipath phenomena, this device improves the decoding mode s responses are deformed byresearch of multipath phenomena, or by embedding with answers in conventional mode a or c. it is in the video signal is received.sigma. logthe secondary radar.the determination of a reference value of the level of leadership of the block of data from a study of the response of the histogram of the data pulse levels presumed and comparison ofthe level of the received signal.sigma. logcaught in the middle of each time interval may be occupied by a data pulse with the reference value of the level.a data pulse is detected or not according to the result of the comparison.in the case of a negative result for a period, it can start baud similar operations on the video signal of.sigma. deviation .delta.. if the secondary radar is monopulse. figure 2.