DEVICE FOR THE REDUCTION OF THE NUMBER OF FALSE ALARMS AND RECEIVER COMPRISING SUCH A DEVICE

摘要

1. Device for reducing the false alarm proportion for a monitoring receiver monitoring a radio frequency band, comprising a gate (11) receiving a logical alarm signal when an emission is received on a monotored frequency and transmitting it if on the one hand it is enabled by means (10) for detecting signals whose energy is greater than a threshold value S" and if, on the other hand, it is not inhibited by means (8) for detecting pulse interferences, characterized in that the value S" is a function of a value B obtained from the calculation of a meanterm mean value of the noise energies received on a plurality of frequencies adjacent the monitored frequency.