Validate robustness of dual-baseline Doppler trajectory-estimation approaches

Validate the robustness under real-world scenarios of dual-baseline bistatic-radar trajectory-estimation approaches that rely, respectively, on a known target crossing point on the baseline or accurately measured times at which a moving target crosses multiple baselines.

Background

The paper reviews two existing approaches for Doppler-only tracking in a dual-baseline bistatic-radar configuration. One estimates target velocity from two transmitter–receiver pairs while assuming that the target’s baseline crossing point is known; the other uses the times at which a moving target crosses multiple baselines to estimate trajectory parameters, assuming that those crossing times can be measured accurately.

The authors characterize these assumptions as special and idealized conditions, leaving unresolved whether the approaches remain robust in realistic operating scenarios. This issue is distinct from the paper’s own contribution, which develops a Doppler-only dynamic estimation method using multiple-initial-point maximum-likelihood track initiation followed by an extended Kalman filter.