Double-leveled block sparsity-based space-time adaptive processing radar clutter suppression method
A space-time self-adaptive and clutter suppression technology, applied in the radar field, can solve the problems of performance degradation of the STAP method and achieve good low-speed target detection performance and good clutter suppression performance
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[0032] The present invention proposes a space-time adaptive processing radar clutter suppression method based on two-level block sparsity, which is described in further detail below with reference to the drawings and specific implementation examples.
[0033] The present invention proposes a space-time adaptive processing radar clutter suppression method based on two-level block sparsity, figure 1 It is a schematic diagram of the space-time adaptive processing scene of the present invention. In the figure, assuming that the carrier flies along the x-axis at a speed v, H represents the height of the carrier, and the circle represents the position of the airborne uniform linear array antenna. The present invention considers the front-side view, that is, the yaw angle ψ=0. The radar echo pulse sent by the airborne radar is sampled to obtain the echo data corresponding to each range unit. Such as figure 1 As shown, in each distance unit, the clutter can be modeled as N c Sum of clu...
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