脉冲多普勒雷达信号处理关键技术研究

【作者】 韦伟；

【导师】 朱晓华；

【作者基本信息】 南京理工大学 ， 通信与信息系统， 2004， 硕士

【摘要】 本论文研究的是脉冲多普勒雷达信号处理关键技术，重点研究了脉冲多普勒雷达解距离模糊，地杂波特性以及地杂波抑制算法。简要介绍了海杂波特性，海杂波的抑制技术和发展方向，以及脉冲多普勒雷达抗干扰技术。 首先简要介绍了脉冲多普勒雷达的发展概况，以及信号处理系统的基本构成和各部分的主要功能。 其次，本文研究了脉冲多普勒雷达解距离模糊的问题。脉冲多普勒雷达存在距离或速度模糊，本文介绍了几种消除距离模糊的方法，并对这几种方法的优劣进行了比较。 再次，本文研究了脉冲多普勒雷达杂波以及杂波抑制算法。分析了地杂波统计特性，研究了相关雷达杂波功率谱特性的AR模型及其模拟方法。介绍了几种典型的杂波抑制算法，对此几种方法进行了比较，并用LMS算法进行抑制。简要介绍了海杂波特性，海杂波的抑制技术及其发展方向。 最后，本文研究了脉冲多普勒雷达的抗干扰性能。对脉冲多普勒雷达反电子侦察、抗噪声干扰能力、抗欺骗干扰能力等进行了分析。并给出几种抗干扰措施。更多还原

【Abstract】 This thesis discusses the key technique of the Pulsed Doppler (PD) radar signal processing, especially on Range ambiguity resolution ,the properties of ground clutters and the algorithms of ground clutters elimination. This thesis introduce the properties of sea clutters, sea clutters elimination, development direction and anti-interference.Firstly, we introduce the development of the Pulsed Doppler radar and the basic structure of PD radar signal processing system and their function of each subsystem.Secondly, we discuss the range ambiguity resolution of Pulsed Doppler radar. In a Pulsed Doppler radar .ambiguity can occur in range or velocity .We introduce several way of range ambiguity resolution and contrast them.Thirdly, we study the clutters of the Pulsed Doppler radar and the clutters elimination algorithms. We analyse statistics properties of ground clutters and study AR model of correlated clutters power spectral density. We introduce several typical clutters elimination algorithms and contrast them. We eliminate clutters using LMS algorithms. This thesis introduce the properties of sea clutters, sea clutters elimination, development direction.Finally, we study the anti-interference performance.We analyse the radar performance of confront electrical spy, anti-interference and confront deceive.We study several technique of anti-interference.更多还原