Open AccessPolarisation‐space‐time adaptive processing for heterogeneous clutter suppression of airborne‐phased array radar
Author(s) -
Sun Yuze,
Yang Jian,
Yang Xiaopeng
Publication year - 2019
Publication title -
the journal of engineering
Language(s) - English
Resource type - Journals
ISSN - 2051-3305
DOI - 10.1049/joe.2019.0269
Subject(s) - clutter , space time adaptive processing , phased array , radar , computer science , moving target indication , joint (building) , constant false alarm rate , continuous wave radar , remote sensing , artificial intelligence , radar imaging , engineering , antenna (radio) , geography , telecommunications , architectural engineering
Conventional space‐time adaptive processing (STAP) achieves clutter suppression by combining spatial signals and the temporal pulses. However, extreme slow‐moving target cannot be effectively detected by space‐time joint filtering in ambiguous and non‐broadside clutter environment for airborne‐phased array radar. By increasing the polarisation information in clutter suppression, improved moving target detection performance can be obtained by the polarisation‐space‐time adaptive processing (P‐STAP). In this study, the performance of P‐STAP for airborne‐phased array radar is analysed. The polarised signal model of airborne‐phased array radar is firstly established and then clutter suppression principle of P‐STAP is derived in detailed. Afterwards, the performance of P‐STAP is investigated and compared with conventional STAP in ambiguous clutter environment. It is verified that the P‐STAP can outperform the conventional STAP for slow moving target detection by three‐domain joint processing, especially for ambiguous and non‐broadside clutter environment for airborne‐phased array radar.