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由于实际的杂波谱随距离呈现一定的非均匀性，相应地要求ＳＴＡＰ处理器在俯仰上也应具有可控自由度．文中以６４×１２ 正侧面矩形阵为例，比较了在总的空域自由度一定的条件下，３ 种子阵结构ＳＴＡＰ的性能．研究结果表明，当空域自由度在阵面的水平和垂直方向上（与距离对应）合理分配时，ＳＴＡＰ处理器能够自适应抑制与距离有关的强杂波，使整体剩余杂波加噪声功率下降２～３ ｄＢ，从而可使ＳＴＡＰ的潜能得到进一步的发挥
As the actual clutter spectrum presents a certain non-uniformity with distance, correspondingly, the STAP processor should also have controllable degree of freedom in pitch. In this paper, we take the 64 × 12 regular rectangle as an example to compare the performance of STAP with three kinds of subarray structures under the condition of certain total degree of airspace freedom. The results show that the STAP processor can adaptively suppress the strong clutter related to the distance and reduce the overall residual clutter plus noise power when the spatial degrees of freedom are reasonably allocated in the vertical and horizontal directions (corresponding to the distance) 2 ~ 3 dB, so that the potential of STAP can be further exerted