Motion parameters estimation in dual-baseline forward scatter radar configuration

The focus of this work is on the estimation of the motion parameters of moving targets by means of a dual receive antenna Forward Scatter Radar (FSR) configuration. For this purpose (i) the Doppler signature spectrogram for the single node FSR configuration and (ii) the time delay technique based on the cross-correlation between the signals acquired by a FSR system comprising two different receivers, are both analysed for the joint estimation of the baseline crossing point and of the cross baseline velocity. The proposed approach is assessed firstly through synthetic datasets by analysing different target trajectories. Finally, experimental results obtained by exploiting the FM signal as waveform of opportunity for the detection and motion estimation of air targets are shown to prove the applicability and the feasibility of the this approach.