Structural distortions in large antennas have impact on antenna gain, sidelobe level and adaptive interference rejection. Partial compensation for the distortion of space-based radar (SBR) phased-array antennas and array-fed reflectors can be achieved by adjusting the phase-shifter settings to compensate for the distortion, if it can be accurately measured. This approach is effective in regaining the antenna gain and sidelobe levels, but the adaptive rejection of interference and clutter is much more complex. This paper addresses the ground moving target indication (GMTI) performance for a large active electronically scanned array (AESA) at a medium-earth orbit (MEO) altitude of 10,000 km, and a maximum sinusoidal mechanical distortion of 10 cm modeled across the horizontal aperture. To evaluate the impact of mechanical distortion on GMTI performance, the full-dimension space-time adaptive processing (STAP) matched filter (MF) and the reduced-dimension joint-domain localized (JDL) algorithms were evaluated using signal-to-interference-plus-noise ratio (SINR), SINR loss and minimum discernable velocity (MDV) as the GMTI performance metrics.


    Zugriff

    Zugriff prüfen

    Verfügbarkeit in meiner Bibliothek prüfen

    Bestellung bei Subito €


    Exportieren, teilen und zitieren



    Titel :

    SBR waveform and processing parameters as a function of array distortion


    Beteiligte:
    Pierro, R.S. (Autor:in) / Parker, S.E. (Autor:in) / Schneible, R. (Autor:in) / Yuhons Zhang, (Autor:in) / Hajjari, A. (Autor:in)

    Erschienen in:

    Erscheinungsdatum :

    01.01.2006


    Format / Umfang :

    580056 byte




    Medientyp :

    Aufsatz (Konferenz)


    Format :

    Elektronische Ressource


    Sprache :

    Englisch



    Evaluation method for distortion of arbitrary waveform

    Sun, Jingyu / Wang, Zhongyu / Liang, Zhiguo | British Library Online Contents | 2015


    A Method for the Reduction of Waveform Distortion

    Gramling, J. T. / IEEE; Aerospace and Electronics Systems Society | British Library Conference Proceedings | 1996


    Waveform distortion in an FM/FM telemetry system

    Houts, R. C. / Parsons, F. D. / Simpson, R. S. | NTRS | 1968