CAJ | 학술논문

　　机载雷达的工作参数决定了地杂波在角度-多普勒空间的分布轨迹，该文首先在充分利用载机速度和雷达工作参数等先验信息的基础上，构建了机载相控阵雷达的杂波矩阵模型。然后基于空时等价性原理，提出了一种杂波空时块对消器的设计方法，该方法通过构造一个空时2维非自适应滤波器以对消杂波。仿真实验表明，该对消器可作为杂波预处理器，能有效改善常规MTI处理和降维STAP算法的杂波抑制性能。
　　궤재뢰체적공작삼수결정료지잡파재각도-다보륵공간적분포궤적，해문수선재충분이용재궤속도화뢰체공작삼수등선험신식적기출상，구건료궤재상공진뢰체적잡파구진모형。연후기우공시등개성원리，제출료일충잡파공시괴대소기적설계방법，해방법통과구조일개공시2유비자괄응려파기이대소잡파。방진실험표명，해대소기가작위잡파예처리기，능유효개선상규MTI처리화강유STAP산법적잡파억제성능。
The distribution of ground clutter in angle-doppler space depends on the information of platform velocity, radar parameters and so on, which is known as the prior information. In this paper a model with matrix form of the ground clutter data is established. Then based on the equivalence between space and time domain, a Space-Time Block Canceller (STBC) for airborne radar to suppress the ground clutter is proposed via designing a space-time non-adaptive filter. Simulation results are given to show that the proposed STBC can be used as an efficient pre-filtering tool before the conventional Moving Target Indication (MTI) processing and the classical reduced-dimension adaptive processing.