Multiple-input multiple-output (MIMO) radar enjoys the advantage of increased degrees-of-freedom and spatial diversity gain, but it cannot effectively resolves the targets closely spaced in the same angle cell (but different range cells). Frequency diverse array (FDA)-MIMO radar can handle this problem by exploiting its range-dependent beampattern. FDA-MIMO radar was, thus, suggested for range-angle estimation of targets. Nevertheless, it is necessary to provide theoretical performance analysis for such a relatively new radar technique. Since multiple signal classification (MUSIC) algorithm is widely adopted in most of the FDA-MIMO literature, this paper derives the Cramér-Rao lower bound and mean square error expressions in MUSIC-based range-angle estimation algorithms for a general FDA-MIMO radar. Furthermore, the corresponding range and angle resolution thresholds in target detection and localization are also derived. Numerical results verify that the FDA-MIMO indeed outperforms conventional MIMO radar in both range-angle estimation and resolution threshold performance.


    Access

    Check access

    Check availability in my library

    Order at Subito €


    Export, share and cite



    Title :

    FDA-MIMO Radar Range–Angle Estimation: CRLB, MSE, and Resolution Analysis


    Contributors:
    Jie Xiong, (author) / Wen-Qin Wang, (author) / Kuandong Gao, (author)


    Publication date :

    2018-02-01


    Size :

    814563 byte




    Type of media :

    Article (Journal)


    Type of material :

    Electronic Resource


    Language :

    English



    Digital Monopulse Beamforming for Achieving the CRLB for Angle Accuracy

    Takahashi, Ryuhei / Inaba, Takayuki / Takahashi, Toru et al. | IEEE | 2018


    Single-Snapshot Angle and Incremental Range Estimation for FDA-MIMO Radar

    Lan, Lan / Rosamilia, Massimo / Aubry, Augusto et al. | IEEE | 2021


    CRLB for likelihood functions with parameter-dependent support

    Bar-Shalom, Yaakov / Osborne, Richard / Willett, Peter et al. | IEEE | 2014


    Joint Range and Angle Estimation by FDA-MIMO Radar With Unknown Mutual Coupling

    Liu, Long / Zhang, Hu / Lan, Lan et al. | IEEE | 2023


    Joint Range Angle and Velocity Estimation Method for FDA-MIMO Radar Under Clutter Background

    Wang, Keyi / Liao, Guisheng / Xu, Jingwei et al. | IEEE | 2023