CAJ | 학술논문

针对线性约束广义旁瓣相消器( LC-GSC)存在主瓣干扰时天线自适应方向图会出现主瓣波束畸变及副瓣电平升高的问题，给出了一种通过阻塞矩阵对数据进行预处理的主瓣干扰抑制方法，对线性约束广义旁瓣相消器进行了改进，先利用阻塞矩阵预处理实现主瓣干扰抑制，再通过线性约束广义旁瓣相消器进行波束形成，有效地解决了波束主瓣变形及旁瓣电平升高的问题。仿真分析验证了改进方法的有效性。
침대선성약속엄의방판상소기( LC-GSC)존재주판간우시천선자괄응방향도회출현주판파속기변급부판전평승고적문제，급출료일충통과조새구진대수거진행예처리적주판간우억제방법，대선성약속엄의방판상소기진행료개진，선이용조새구진예처리실현주판간우억제，재통과선성약속엄의방판상소기진행파속형성，유효지해결료파속주판변형급방판전평승고적문제。방진분석험증료개진방법적유효성。
According to the linear constraints generalized sidelobe canceller ( LC-GSC ) , the adapted pat-tern suffers much distortion ( distorted mainlobe and high sidelobes) , when there exists main lobe interfer-ence. An adaptive beam forming based on blocking matrix data-preprocessing is proposed, which is an im-provement of linear constraints generalized sidelobe canceller. Firstly,a blocking matrix is constructed to cancellthe mainlobe interference, then beamforming based on the linear constraints generalizes sidelobe canceller, which effectively solves the problem of beam deformation while suppressing the mainlobe inter-ference. The method has been proven to be effective by the computer simulation.