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Local Degrees of Freedom of Airborne Array Radar Clutter for STAP

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4 Author(s)
Zhang Zenghui ; Coll. of Electron. Sci. & Eng., Nat. Univ. of Defense Technol., Changsha ; Xie Wenchong ; Hu Weidong ; Yu Wenxian

In this letter, the local degree-of-freedom (LDOF) theorem for reduced-dimension space-time adaptive processing (STAP) methods is presented, and a rigorous proof is provided. LDOF is more valuable for practical STAP methods than conventional full degrees of freedom. The effectiveness of the LDOF theorem is verified, and the influences of some operations in practice on the LDOF are analyzed by simulations.

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Geoscience and Remote Sensing Letters, IEEE  (Volume:6 ,  Issue: 1 )