Ricerc@Sapienza

An important field of application of Forward Scatter Radar systems (both single-node and multi-node) consists in the estimation of the target kinematic parameters. In the past different studies have shown the possibility to extract these parameters by estimating the main target signal parameters (i.e. Doppler rate, derivative of the Doppler rate) and the time instant at which the target crosses the baseline. The estimation accuracy of the motion parameters depends on the estimation accuracy of the target signal parameters and on the FSR geometry.

This paper demonstrates the feasibility and effectiveness of forward-scatter radar (FSR) target detection based on the signals of opportunity made available by standard radio and TV broadcast transmission stations. This passive FSR (P-FSR) operation is obtained by means of a simple and robust correlation process based on self-mixing. This is shown to be very effective in extracting the characteristic FSR modulation produced by airborne targets, from the signals received from frequency modulated, digital audio broadcasting, and digital video broadcasting transmitters of opportunity.