This paper is devoted to the estimation of target motion parameters with a forward scatter radar (FSR). To provide an upper bound for the estimation performance, a closed-form expression of the Cramér–Rao lower bound (CRLB) is provided for the main target signal parameters, namely Doppler rate, baseline crossing instant, and main lobe width parameter of the target amplitude modulation pattern. This is performed by operating on the signal at the output of the standard FSR processing scheme, namely on the crystal video detector signal: the received signal, which is passed through a square-law envelope detector followed by a DC removal filter. The estimate of the kinematic parameters of moving targets that follow a linear trajectory can be obtained by inverting the relationship between these parameters and the previously estimated target signal parameters. Especially, two FSR configurations are investigated: single-node FSR configuration and dual-baseline FSR configuration with a small angular separation between the two baselines. The closed-form expression of the corresponding CRLB is derived by using a linearized version of the same inverse transformation. Finally, a practical estimator is presented, based on a two-dimensional filter bank, and its performance is compared with the derived CRLB. The results show that unbiased and highly accurate estimates of the kinematic parameters are obtained. The feasibility and the effectiveness of this estimation scheme is demonstrated by applying this technique to recorded live data acquired with a dual-baseline FSR configuration exploiting FM signals as a waveform of opportunity.


    Access

    Check access

    Check availability in my library

    Order at Subito €


    Export, share and cite



    Title :

    Target Motion Parameters Estimation in Forward Scatter Radar


    Contributors:


    Publication date :

    2020-02-01


    Size :

    14293523 byte




    Type of media :

    Article (Journal)


    Type of material :

    Electronic Resource


    Language :

    English



    Target visibility estimation in a buoy mounted maritime forward scatter radar

    Daniel, L.Y. / Gashinova, M.S. / Cherniakov, M. | IEEE | 2015


    Generalized Likelihood Ratio Detection Schemes for Forward Scatter Radar

    Ustalli, Nertjana / Lombardo, Pierfrancesco / Pastina, Debora | IEEE | 2018


    Detection Performance of a Forward Scatter Radar Using a Crystal Video Detector

    Ustalli, Nertjana / Lombardo, Pierfrancesco / Pastina, Debora | IEEE | 2018


    Stand-alone WiFi-based passive forward scatter radar sensor for vehicles classification

    Michele Stentella / Alessandro Losito / Tatiana Martelli et al. | BASE | 2017

    Free access