A new approach is described for combining range and Doppler data from multiple radar platforms to perform multi-target detection and tracking. In particular, azimuthal measurements are assumed to be either coarse or unavailable, so that multiple sensors are required to triangulate target tracks using range and Doppler measurements only. Increasing the number of sensors can cause data association by conventional means to become impractical due to combinatorial complexity, i.e., an exponential increase in the number of mappings between signatures and target models. When the azimuthal resolution is coarse, this problem will be exacerbated by the resulting overlap between signatures from multiple targets and clutter. In the new approach, the data association is performed probabilistically, using a variation of expectation-maximization (EM). Combinatorial complexity is avoided by performing an efficient optimization in the space of all target tracks and mappings between tracks and data. The full, multi-sensor, version of the algorithm is tested on simulated data. The results demonstrate that accurate tracks can be estimated by exploiting spatial diversity in the sensor locations. Also, as a proof-of-concept, a simplified, single-sensor range-only version of the algorithm is tested on experimental radar data acquired with a stretch radar receiver. These results are promising, and demonstrate robustness in the presence of nonhomogeneous clutter.


    Access

    Check access

    Check availability in my library

    Order at Subito €


    Export, share and cite



    Title :

    Multi-Target/Multi-Sensor Tracking using Only Range and Doppler Measurements


    Contributors:
    Deming, R. (author) / Schindler, J. (author) / Perlovsky, L. (author)


    Publication date :

    2009-04-01


    Size :

    3264374 byte




    Type of media :

    Article (Journal)


    Type of material :

    Electronic Resource


    Language :

    English




    Efficient and Enhanced Multi-Target Tracking with Doppler Measurements

    Xuezhi Wang, / Musicki, D. / Ellem, R. et al. | IEEE | 2009



    Observability of Target Tracking with Range-only Measurements

    Song, T. L. / Japan Society for Aeronautical and Space Services / Japan Aeronautical Engineers Association | British Library Conference Proceedings | 1997


    Multi-sensor multi-target tracking using out-of-sequence measurements

    Mallick, M. / Krant, J. / Bar-Shalom, Y. | IEEE | 2002