JIA Qiong-qiong, WU Ren-biao. Detection and Parameter Estimation of Fast Moving Air Targets in Beamspace[J]. Acta Electronica Sinica, 2014, 42(1): 14-19.
JIA Qiong-qiong, WU Ren-biao. Detection and Parameter Estimation of Fast Moving Air Targets in Beamspace[J]. Acta Electronica Sinica, 2014, 42(1): 14-19. DOI: 10.3969/j.issn.0372-2112.2014.01.003.
Computation burden and the processing complexity of interpolation operation are the problems Keystone formatting faces.Especially in STAP
where Keystone formatting should be applied to each of the element
which makes it unfeasible for real time processing.Based on these
a new practical method with low computation burden is given
which removes the clutter firstly
and a space domain beam forming is done;after that
Keystone formatting is applied to the beam domain data for range walk compensation.By the proposed method
only one Keystone formatting is needed compared with the KF-STAP method
therefore
the computation burden can be reduced dramatically.Besides
a compressed sensing (CS) based targets' parameter estimation method is proposed for the targets' velocity estimation of STAP.Effectiveness of the proposed methods is verified via simulation examples.