Cellular communication signal identification, detection and analysis

Abstract

The detection of cellular communications signals was investigated, and a prototype detector was implemented. Global System for Mobile Communications (GSM) signals were detected in recorded data and the correct frequency channel was determined. Inter-channel interference (ICI) was observed and methods to reduce it are discussed. Detection was achieved at a lower signal-to-noise ratio (SNR) than is required by a base transceiver station (BTS), thereby demonstrating the potential to detect mobiles at long range.