An automatic recognition algorithm of analogue modulated signals for disturbance rejection

Abstract

This paper presents an automatic recognition algorithm of analogue modulated signals provided that jamming signals exist near the carrier frequency of a target signal. The proposed algorithm is based on the decision-theoretic approach, is assumed to be used as surveillance system for radiowaves, and can distinguish LSB (lower side band), USB(upper side band), AM (amplitude modulation), and DSB-SC (double side band suppressed carrier). The performance of the proposed algorithm is evaluated through some simulations of modulation recognition.