CAJ | 학술논문

全球移动通信（Global System for Mobile communication ，GSM ）信号已经被很多文献证明可以作为外辐射源雷达的机会照射源信号，但是在以往的研究中主要考虑抑制主基站的直达波和多径干扰。而实际上，GSM辐射源雷达不仅受到主基站的干扰，还受到其它同频基站的干扰。为了消除主基站干扰，同时抑制其它同频基站的干扰，本文提出首先利用扩展相消算法（Extensive Cancellation Algorithm ，ECA ）在时域上消除主基站的干扰，然后利用基于最差性能最优准则的稳健自适应波束形成在空域上对其它同频基站干扰进行抑制。最后仿真分析表明本文提出的杂波抑制方法的有效性。
전구이동통신（Global System for Mobile communication ，GSM ）신호이경피흔다문헌증명가이작위외복사원뢰체적궤회조사원신호，단시재이왕적연구중주요고필억제주기참적직체파화다경간우。이실제상，GSM복사원뢰체불부수도주기참적간우，환수도기타동빈기참적간우。위료소제주기참간우，동시억제기타동빈기참적간우，본문제출수선이용확전상소산법（Extensive Cancellation Algorithm ，ECA ）재시역상소제주기참적간우，연후이용기우최차성능최우준칙적은건자괄응파속형성재공역상대기타동빈기참간우진행억제。최후방진분석표명본문제출적잡파억제방법적유효성。
The application of GSM(Global System for Mobile communication ) signal as opportunity source of passive bistat-ic radar has been demonstrated in many references .However ,in the early research ,only the suppression of direct signal and multi-path from the host station is considered .In practice ,GSM based passive bistatic radar receives interference not only from the host station but also from other station with the same frequency .In order to suppress the interference from the host station as well as the one from other stations ,this paper proposes that the host station’s interference is firstly cancelled using ECA (Extensive Cancellation Algorithm ) algorithm ,and then the other stations’ interference is suppressed by a robust adaptive beamformer based worst-case opti-mization .In the end ,simulations verify the availability of the proposed method .