The detection of near-earth targets is difficult from a space based radar (SBR). As a result of the large velocity of the radar platform, the intense earth clutter is spread is the frequency domain and masks even relatively fast moving targets. Among the various clutter cancellation methods proposed to remedy the problem, the Displace Phase Center Antenna technique (DPCA) has attracted a lot of attention. It aims at compensating the motion of the platform to attenuate the return from stationary scatterers while allowing moving targets to be detected. A model was developed to describe the operation of space based radars employing DPCA. This model was used to determine the minimum detectable velocities of an SBR with DPCA for different sets of radar parameters and observation geometries. The results are compand with those of a pulse Doppler radar without motion compensation.


    Access

    Access via TIB

    Check availability in my library


    Export, share and cite



    Title :

    Improvement in the detection performance of a space based radar using a displaced phase center antenna


    Additional title:

    Verbesserung der Detektionsleistung eines im Weltraum stationierten Radars mit einer Displaced Phase Center Antenne (DPCA)


    Contributors:
    Faubert, D. (author) / Tam, W. (author)


    Publication date :

    1987


    Size :

    4 Seiten, 4 Bilder, 4 Quellen


    Type of media :

    Conference paper


    Type of material :

    Print


    Language :

    English




    A displaced phase center antenna concept for space based radar applications

    Kelly, E.J. / Tsandoulas, G.N. | Tema Archive | 1983



    A Displaced Phase Center Antenna Configuration for Doppler Measurements Onboard a Spaceborne Weather Radar

    Durden, Stephen / Beauchamp, Robert / Chandrasekar, V. et al. | NTRS | 2021


    Unambiguous SAR Signal Reconstruction from Nonuniform Displaced Phase Center Sampling

    Krieger, Gerhard / Gebert, Nicolas / Moreira, Alberto | German Aerospace Center (DLR) | 2004

    Free access

    Space-Based Radar Antenna Thermal Control

    Vrable, D. L. / Vrable, M. D. / Institute for Space and Nuclear Power Studies | British Library Conference Proceedings | 2001