【摘要】 针对机翼颤振现象对机载相控阵雷达杂波抑制性能的影响展开定量分析。载机飞行过程中,机翼受到外载荷作用后会发生颤振并且产生形变。对于布阵在机翼上的空载阵列雷达,机翼形变将引起阵列流形形变,从而导致方向图畸变及阵列误差。采用等幅颤振模型对相控阵雷达阵列流形的柔性形变进行建模,并在此基础上推导柔性形变对机载相控阵雷达杂波抑制性能的影响。该分析结果旨在为机载雷达的鲁棒性分析以及接收机算法优化等环节提供关于机翼颤振这一非理想因素的定量分析依据。仿真结果验证了理论分析结果的正确性。更多还原

【Abstract】 The quantitative analysis of the effect of wing flutter on the clutter suppression performance of airborne phased array radar is made.During the flight of aircraft,the wing is subjected to external loads,which can cause flutter and deformation.For the airborne radar set up on the wing,the wing deformation will cause array manifold deformation,resulting in distortion and array error.In this paper,a model of flexible deformation on phased array radar manifold is modeled by the amplitude chatter model,and the influence of flexible deformation on the performance of clutter suppression for airborne phased array radar is derived.The results aim to provide a quantitative analysis basis for the non-ideal factors of the wing flutter in the aspects of robustness analysis and optimization of the receiver algorithm.The correctness of the analysis results is verified by simulation.更多还原