• 主题
高级搜索  >
历史搜索 清空历史
首页> 外文期刊>Mathematical Problems in Engineering >Training Sequence Design of TDS-OFDM Signal in Joint Radar and Communication System
【24h】

Training Sequence Design of TDS-OFDM Signal in Joint Radar and Communication System

机译：联合雷达和通信系统中TDS-OFDM信号训练序列设计

获取原文
获取原文并翻译 | 示例
           
页面导航
  • 摘要
  • 著录项
  • 相似文献
  • 相关主题

摘要

In the joint radar and communication system, using orthogonal frequency division multiplexing (OFDM) signals, cyclic prefix (CP) and pilots lead to the problem of high peak at the sidelobe (PSL) level in autocorrelation function (ACF), which deteriorates the radar detection performance seriously. To solve this problem, first, a new RadCom signal based on time-domain synchronization OFDM (TDS-OFDM) was proposed. TDS-OFDM adopts training sequence (TS) for guard interval, as well as synchronization and channel estimation, so that CP and pilots can be avoided. And then, ambiguity function (AF) of TDS-OFDM RadCom signal was analyzed. Finally, TS are optimized to suppress PSL of TDS-OFDM signal and maintain the autocorrelation properties of TS simultaneously. The results show that the autocorrelation performance of designed TDS-OFDM RadCom signal is much better than that of CP-OFDM RadCom signal. Considering the importance of radar target detection, TDS-OFDM is more appropriate than CP-OFDM for the RadCom system.
机译：在联合雷达和通信系统中，使用正交频分复用（OFDM）信号，循环前缀（CP）和导频导致自相关函数（ACF）中Sidelobe（PSL）电平的高峰的问题，这会降低雷达检测性能严重。为了解决这个问题，首先，提出了一种基于DDM（TDS-OFDM）时域同步的新的RADCOM信号。 TDS-OFDM采用训练序列（TS），用于保护间隔，以及同步和信道估计，从​​而可以避免CP和飞行员。然后，分析了TDS-OFDM RADCOM信号的模糊函数（AF）。最后，优化TS以抑制TDS-OFDM信号的PSL，并同时保持TS的自相关性能。结果表明，设计的TDS-OFDM RADCOM信号的自相关性能远优于CP-OFDM RADCOM信号。考虑到雷达目标检测的重要性，TDS-OFDM比RADCOM系统的CP-OFDM更合适。

著录项

  • 来源
    《Mathematical Problems in Engineering》 |2019年第17期|3914314.1-3914314.10|共10页
  • 作者

    Zuo Jiajun; Yang Ruijuan; Luo Shaohua; Li Xiaobai;

  • 作者单位

    Air Force Early Warning Acad Dept Early Warning Intelligence Wuhan 430019 Hubei Peoples R China;

    Air Force Early Warning Acad Dept Early Warning Intelligence Wuhan 430019 Hubei Peoples R China;

    Air Force Early Warning Acad Dept Early Warning Intelligence Wuhan 430019 Hubei Peoples R China;

    Air Force Early Warning Acad Dept Early Warning Intelligence Wuhan 430019 Hubei Peoples R China;

  • 收录信息
  • 原文格式 PDF
  • 正文语种 eng
  • 中图分类
  • 关键词

相似文献

  • 外文文献
  • 中文文献
  • 专利
获取原文

客服邮箱：kefu@zhangqiaokeyan.com

京公网安备：11010802029741号 ICP备案号：京ICP备15016152号-6 六维联合信息科技 (北京) 有限公司©版权所有

  • 客服微信

  • 服务号