CAJ | 학술논문

该文研究了防空雷达虚假目标判别问题，针对航迹欺骗干扰、杂波剩余假航迹干扰等能够形成航迹的虚假目标，从回波频谱分析角度着手，结合航迹速度修正处理，提出了一种全新的判别方法。该方法将虚假目标判别归结为二元假设检验问题，推导了以多普勒频率差为统计量的似然比判别表达式，给出了判别门限的计算公式，并基于实际防空雷达数据验证了方法的有效性，为解决防空雷达目标真伪判别提供了有效的技术途径。
해문연구료방공뢰체허가목표판별문제，침대항적기편간우、잡파잉여가항적간우등능구형성항적적허가목표，종회파빈보분석각도착수，결합항적속도수정처리，제출료일충전신적판별방법。해방법장허가목표판별귀결위이원가설검험문제，추도료이다보륵빈솔차위통계량적사연비판별표체식，급출료판별문한적계산공식，병기우실제방공뢰체수거험증료방법적유효성，위해결방공뢰체목표진위판별제공료유효적기술도경。
In this paper, the false target discrimination strategy of an air surveillance radar is studied. To distinguish a false target, such as clutter residual false track or false track deception, a novel method based on track velocity modification and frequency spectrum analysis is proposed. This method can provide a solution for the false target discrimination problem. The discrimination issue is determined to be the problem of bivariate hypothesis testing, and the likelihood ratio formula is deduced by calculating the judge threshold. The method is verified with the experimental results of real surveillance radar data.