A RADIO SENSOR FOR DETECTING WIRELESS MICROPHONE SIGNALS AND A METHOD THEREOF

摘要

Wireless microphone signals are detected by processing an input signal to determine a number of frequency bins within a channel frequency band having an energy level above a first predefined threshold (S510); identifying locations of the frequency bins having an energy level above the first predefined threshold, when the number of bins is greater than zero (S520, S530); for each frequency bin having an energy level above the first predefined threshold, processing signals within a narrow frequency band of the frequency bin (S570); determining a number of signal peaks within the narrow frequency band that are above a second predefined threshold (S575); and generating a message indicating a presence or an absence of a microphone signal based on the number of signal peaks (S590, S595).