【摘要】 单脉冲技术在无线遥测中有很好的前途。数字单脉冲技术能够快速定位跟踪目标。当天线方向图旁瓣存在干扰时,自适应数字单脉冲算法能够很好地抵抗干扰信号,而当干扰位于波束主瓣内时,传统单脉冲算法会引起高旁瓣、和差波束畸变、单脉冲比失真及测角错误。文章提出一种预处理自适应数字单脉冲(Preprocessing Adaptive Digital Monopulse,PADM)测角技术,在抑制主、旁干扰的同时保持单脉冲比曲线,避免了主波束畸变和波束指向偏移对测角的影响。通过仿真验证了这种预处理数字单脉冲技术的测角性能和抗干扰特性,证明了这种新算法的有效性。更多还原

【Abstract】 Monopulse technology will be widely used in telemetry in near future.With the help of the digital monopulse technology,location and tracking become fast and accuracy.When jamming locates at side lobes,it can be easily eliminated by traditional digital monopulse algorithms.But when the jamming is close to the desired signal,the adaptive pattern would have higher side lobes and distorted main beam.Besides the monopulse ratio become curve in the presence of main lobe jamming and angle estimation is going to be error.To deal with the main lobes jamming,we take a preprocessing adaptive digital monopulse algorithm into consideration.The algorithms not only do well in interference suppression,but also in maintain the monopulse ratio.In addition,the algorithms avoid the main beam distortion and point deviation to disturb the angle estimation.The simulation proves that the new algorithm do well in both angle estimation and anti-jamming,and verify the effectiveness of the algorithm.更多还原