| The transmit angle of bistatic radar can be obtained by introducing Multiple-InputMultiple-Output (MIMO) radar techniques. The three-dimensional (3D) clutter spectra,that is transmit angle, receive angle and Doppler frequency, then can be able tointroduced. Especially, the all the clutter ridges are located in the same plane of the3D-space when both transmitter and receiver are side-looking. The sub-optimal3Dspace-time adaptive processing (3D-STAP) for airborne bistatic MIMO radars can beachieved by placing a notch in the clutter plane without any necessary ofrange-dependence compensation. On this basis, this paper is aimed at the review of theresearch on the bistatic MIMO radar range-dependent clutter suppression. Firstly, inorder to solve the problem that clutter ridges do not have the co-plane property in thenon-sidelooking case, a3D joint space-time interpolation technique is gived. The3D-STINT transform matrix is designed that maps the clutter in non-sidelooking caseto that the clutter received by the side-looking case. Secondly, in order to solve theproblem of huge computational complexity, slow convergence rate and large number ofrange samples of the3D-STAP, the3D-ACR,3D-GMB,3D-mDT and3D-JDL forbistaitc side-looking MIMO radar are gived. And the reduced-dimensional clutterridges also inherit the co-plane property. Simulation results show that the proposedmethods can reduce the computational complexity and improve the small samplesupport performance of range-dependent clutter suppression for bistatic side-lookingMIMO radar. |
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