认知雷达起伏目标检测

发布时间：2018-03-08 05:26

  本文选题：认知雷达　切入点：起伏目标　出处：《系统工程与电子技术》2017年05期 　论文类型：期刊论文

【摘要】：认知雷达通过对探测环境的感知实现对感兴趣目标的探测。考虑杂波和噪声中的起伏目标的认知雷达探测问题,建立从接收机到发射机的反馈支路,使得雷达与探测环境之间构成一个闭环;采用期望最大算法对探测环境中的目标参数进行估计;利用接收机获得的反馈信息,采用信杂噪比最大准则设计下一次迭代所需的发射波形。计算机仿真分析表明,采用了认知雷达闭环探测结构,可以有效增加探测环境信息获取的效率,因此相对于常规雷达而言,具有更好的探测能力。
[Abstract]:Cognitive radar detects objects of interest by perceiving the detection environment. Considering the problem of cognitive radar detection of fluctuating targets in clutter and noise, a feedback branch from receiver to transmitter is established. Make the radar and the detection environment to form a closed loop, using the expected maximum algorithm to estimate the target parameters in the detection environment, using the feedback information obtained by the receiver, The signal-to-noise ratio maximum criterion is used to design the transmitted waveform for the next iteration. The computer simulation results show that the closed-loop detection structure of cognitive radar can effectively increase the efficiency of environmental information acquisition. Therefore, compared with conventional radar, it has better detection capability.
【作者单位】： 空军工程大学信息与导航学院;
【基金】：国家自然科学基金(61571456) 陕西省自然科学基金(2016JM0644)资助课题
【分类号】：TN958
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本文编号：1582597