Abstract:

In radio monitoring,the channel occupancy is an important index to represent how long the channel is used.In this paper,a novel method of computing the channel occupancy is brought out.Based on the statistical distribution of field strength in monitoring data of a single channel,signals and background noise can be separated automatically by GMM,and then channel occupancy can be computed.Both random error and estimate error in traditional methods are effectively decreased,and the result is much finer and more objective.

Key words: channel occupancy, GMM, data classification